Optical element driving mechanism

Abstract

To provide an optical element drive mechanism that can improve the quality of an image.SOLUTION: The optical element drive mechanism includes a first movable unit 9-200, a fixation unit 9-100, and a first drive assembly 9-300. The first movable unit is connected to an optical element 9-30. The first movable unit 9-200 is movable with respect to the fixation unit 9-100. The first drive assembly 9-300 drives the first movable unit 9-200 so that the first movable unit moves to the fixation unit 9-100.SELECTED DRAWING: Figure 97

Description

[Technical Field]

[0001] This application is a continuation of U.S. Provisional Application No. 62 / 785593 filed December 27, 2018, U.S. Provisional Application No. 62 / 799886 filed February 1, 2019, U.S. Provisional Application No. 62 / 814543 filed March 6, 2019, U.S. Provisional Application No. 62 / 836405 filed April 19, 2019, U.S. Provisional Application No. 62 / 879190 filed July 26, 2019, U.S. Provisional Application No. 62 / 879190 filed August 16, 2019, and U.S. Provisional Application No. 62 / 879190 filed August 16, 2019. This application claims priority to Provisional Application No. 62 / 887905, U.S. Provisional Application No. 62 / 890731 filed August 23, 2019, U.S. Provisional Application No. 62 / 894295 filed August 30, 2019, U.S. Provisional Application No. 62 / 896943 filed September 6, 2019, and European Patent Application No. 19218896.9 filed December 20, 2019, each of which is incorporated by reference in its entirety.

[0002] The present invention relates to an optical element driving mechanism, and more particularly to an optical element driving mechanism having a light-blocking structure and / or a light-blocking member. [Background technology]

[0003] With the development of science and technology, many electronic devices (such as smartphones and digital cameras) have the functions of a camera and a video decoder. The use of such electronic devices is becoming more and more widespread, and they are being developed in the direction of convenient and compact design, providing more choices for users.

[0004] A camera or electronic device with video capabilities typically has a lens driving module to move the lens along the optical axis, thereby achieving autofocus (AF) and / or optical image stabilization (OIS) functions. Light passes through the lens and creates an image on a photosensitive member.

[0005] However, during the optical image formation process, external noise often enters the photosensitive element due to reflection, resulting in poor image quality that cannot meet the image quality requirements of users. Therefore, how to solve the above problem is an important issue. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention provides an optical element driving mechanism. [Means for solving the problem]

[0007] The optical element driving mechanism has a movable part and a fixed part. The movable part has a holder and mounts an optical element having an optical axis. The movable part is movable relative to the fixed part. The fixed part has a housing and a base. The housing is mounted on the base and has a top surface and a side surface. The top surface extends in a direction parallel to the optical axis. The side surface extends from the edge of the top surface in a direction not parallel to the optical axis. The side surface has a rectangular opening.

[0008] In one embodiment, the base further includes a barrier protruding toward the top surface, and when viewed in a direction parallel to the optical axis, the barrier and the long side of the opening at least partially overlap, and a gap is formed between the barrier and the short side of the opening. In one embodiment, the barrier includes a sawtooth structure disposed facing the top surface.

[0009] In one embodiment, the sawtooth structure has a plurality of apexes, and when viewed in a direction perpendicular to the optical axis, the apexes are exposed through the opening. The point overlaps with the aperture.

[0010] In one embodiment, a groove is formed between the barrier and the housing, the groove facing the top surface, and the optical element driving mechanism further includes a light blocking member disposed in the groove, the shortest distance between the light blocking member and the top surface being smaller than the shortest distance between the barrier and the top surface.

[0011] In one embodiment, the barrier further has an upper surface and a cut surface intersecting the upper surface, and a fillet between the upper surface and the cut surface is not greater than 0.05 mm. In one embodiment, the barrier has a roughened surface disposed facing the top surface. In one embodiment, the base has a roughened surface disposed facing the top surface.

[0012] In one embodiment, the optical element driving mechanism further includes a light blocking member disposed outside the housing, the light blocking member overlapping with the long side of the opening when viewed in a direction parallel to the optical axis.

[0013] In one embodiment, the movable part further includes a light-shielding sheet disposed between the carrier and the upper surface, the light-shielding sheet extending laterally in a direction substantially parallel to the optical axis, and positioned on a long side of the opening when viewed in a direction perpendicular to the optical axis.

[0014] In one embodiment, the carrier has a protrusion extending laterally in a direction substantially parallel to the optical axis, and when viewed in a direction perpendicular to the optical axis, the protrusion is located on a long side of the opening.

[0015] In one embodiment, the fixing part further includes a frame disposed between the carrier and the housing, the frame including a light-blocking structure protruding from the base, and when viewed in a direction parallel to the optical axis, the light-blocking structure at least partially overlaps with a long side of the opening, and a gap is formed between the light-blocking structure and a short side of the opening.

[0016] In one embodiment, the light-blocking structure has a sawtooth structure facing the base. In one embodiment, a groove is formed between the light-blocking structure and the housing, the groove facing the top surface. In one embodiment, the optical element driving mechanism further includes a light-blocking member disposed in the groove, and the shortest distance between the light-blocking member and the base is shorter than the shortest distance between the barrier and the base.

[0017] In one embodiment, the light-blocking structure further has a lower surface and a cutting surface intersecting the lower surface, and a fillet between the lower surface and the cutting surface is not greater than 0.05 mm. In one embodiment, the optical element driving mechanism further has an electromagnetic driving assembly for moving the movable part relative to the fixed part, the electromagnetic driving assembly having a magnetic member and a coil. One of the magnetic member and the coil is installed on the movable part, and the other of the magnetic member and the coil is installed on the fixed part. [Effects of the Invention]

[0018] It can prevent noise due to reflection from entering the image sensor and affecting image quality. [Brief explanation of the drawings]

[0019] Aspects of the present invention can be understood from the following detailed description and the accompanying drawings. [Figure 1] 1 is a three-dimensional view of an optical element driving mechanism and an optical element according to some embodiments of the present invention. [Figure 2] FIG. 2 is an exploded view of the optical element driving mechanism of FIG. [Figure 3] FIG. 1 is a three-dimensional view of an optical element drive mechanism with some elements omitted. [Figure 4] FIG. 1 is a side view of an optical element drive mechanism with some elements omitted. [Figure 5] FIG. 2 is a schematic diagram of a magnetic-permeable element, a first drive assembly, and a second drive assembly. [Figure 6] FIG. 2 is a schematic diagram of a first magnetic element. [Figure 7] FIG. 2 is a schematic diagram of a first magnetic element. [Figure 8] FIG. 2 is a three-dimensional view of the holder shown at a different angle from FIG. 1. [Figure 9] 10A-10C are schematic diagrams of a first drive assembly and a second drive assembly according to some alternative embodiments of the present invention. [Figure 10]10 is a top view of the first drive assembly and the second drive assembly of FIG. 9. [Figure 11] 1 is a three-dimensional view of an optical element driving mechanism according to an embodiment of the present invention; [Figure 12] FIG. 12 is an exploded view of the optical element driving mechanism shown in FIG. [Figure 13] FIG. 2A is a cross-sectional view taken along line 2A-2A′ shown in FIG. 11. [Figure 14] FIG. 12 is a three-dimensional view of the optical element driving mechanism shown in FIG. 11 viewed from another direction. [Figure 15] 1 is a three-dimensional view of the internal structure of an optical element driving mechanism according to an embodiment of the present invention; [Figure 16] FIG. 16 is a three-dimensional view of the internal structure of the optical element driving mechanism shown in FIG. 15, observed from another direction. [Figure 17] 1 is a three-dimensional view of the internal structure of an optical element driving mechanism according to an embodiment of the present invention; [Figure 18] FIG. 2 is a top view of the internal structure of an optical element driving mechanism according to an embodiment of the present invention. [Figure 19] FIG. 19 is a side view of the internal structure of the optical element driving mechanism shown in FIG. [Figure 20] 1 is a three-dimensional view of an optical element driving mechanism according to an embodiment of the present invention; [Figure 21] FIG. 21 is an exploded view of the optical element driving mechanism shown in FIG. 20. [Figure 22] FIG. 21 is a cross-sectional view taken along line 3-B-3-B shown in FIG. 20. [Figure 23] FIG. 21 is an enlarged three-dimensional view of the optical element driving mechanism shown in FIG. 20. [Figure 24] FIG. 10 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 25] FIG. 10 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 26] FIG. 10 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 27]FIG. 10 is a cross-sectional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 28] FIG. 10 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 29] FIG. 10 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 30] 1 is a schematic diagram of an electronic device incorporated into an optical system according to some embodiments of the present invention. [Figure 31] FIG. 31 is a cross-sectional view taken along 4-A-4A in FIG. 30. [Figure 32] 1 is a three-dimensional view of a periscope optical module according to some embodiments of the present invention. [Figure 33] FIG. 33 is a side view of the periscope optical module of FIG. 32. [Figure 34] FIG. 33 is a top view of the periscope optical module of FIG. 32. [Figure 35] 1 is a schematic diagram of a first optical element according to some embodiments of the present invention. [Figure 36] 1 is a three-dimensional view of a periscope optical module having a first drive assembly. FIG. [Figure 37] 10A-10C illustrate different arrangements of the first drive assembly according to some embodiments of the present invention. [Figure 38] 10A-10C illustrate different arrangements of the first drive assembly according to some embodiments of the present invention. [Figure 39] 10A-10C illustrate different arrangements of the first drive assembly according to some embodiments of the present invention. [Figure 40] 10A-10C illustrate different arrangements of the first drive assembly according to some embodiments of the present invention. [Figure 41] 10A-10C illustrate different arrangements of the first drive assembly according to some embodiments of the present invention. [Figure 42] 10A-10C illustrate different arrangements of the first drive assembly according to some embodiments of the present invention. [Figure 43] FIG. 1 is a schematic diagram of a liquid lens drive assembly. [Figure 44] FIG. 10 is a schematic diagram of a second drive assembly and a third drive assembly. [Figure 45] 1 is a schematic diagram of an optical system according to some embodiments of the present invention. [Figure 46] 1 is a schematic diagram of an optical system according to some embodiments of the present invention. [Figure 47] 1 illustrates an electronic device according to one embodiment of the present invention. [Figure 48] 1 is a partial cross-sectional view of an electronic device according to one embodiment of the present invention. [Figure 49] FIG. 2 illustrates an optical element driving mechanism according to an embodiment of the present invention. [Figure 50] FIG. 10 illustrates an optical element driving mechanism in another view according to an embodiment of the present invention. [Figure 51] FIG. 2 is an exploded view of an optical element driving mechanism according to one embodiment of the present invention. [Figure 52] 10A-10C show an optical element drive mechanism with the housing omitted according to one embodiment of the present invention. [Figure 53] 1A and 1B are diagrams illustrating a movable part according to an embodiment of the present invention. [Figure 54] FIG. 10 is a top view of an optical element drive mechanism with the housing omitted according to one embodiment of the present invention. [Figure 55] FIG. 2 is a bottom view of an optical element driving mechanism according to an embodiment of the present invention. [Figure 56] FIG. 10 illustrates an optical element driving mechanism according to another embodiment of the present invention. [Figure 57] FIG. 10 illustrates an optical element driving mechanism in another view according to another embodiment of the present invention. [Figure 58] FIG. 10 is an exploded view of an optical element drive mechanism according to another embodiment of the present invention. [Figure 59] FIG. 10 is a top view of an optical element drive mechanism with the housing omitted according to another embodiment of the present invention. [Figure 60]10A and 10B show an optical element drive mechanism with the housing omitted according to another embodiment of the present invention. [Figure 61] 1 is a cross-sectional view of an optical element driving mechanism according to an embodiment of the present invention. [Figure 62] 1 illustrates an electronic device according to one embodiment of the present invention. [Figure 63] FIG. 2 illustrates an optical element driving mechanism according to an embodiment of the present invention. [Figure 64] FIG. 2 is an exploded view of an optical element driving mechanism according to one embodiment of the present invention. [Figure 65] 1A and 1B are diagrams illustrating a movable part according to an embodiment of the present invention. [Figure 66] FIG. 10 illustrates a movable part in another perspective according to an embodiment of the present invention. [Figure 67] 1 is a cross-sectional view of an optical element driving mechanism according to an embodiment of the present invention. [Figure 68] FIG. 10 is another cross-sectional view of an optical element driving mechanism according to an embodiment of the present invention. [Figure 69] FIG. 10 is a bottom view of an optical element drive mechanism with the base omitted, according to one embodiment of the present invention. [Figure 70] FIG. 10 is a bottom view of an optical element drive mechanism with the base omitted according to another embodiment of the present invention. [Figure 71] 1 illustrates an electronic device according to one embodiment of the present invention. [Figure 72] FIG. 2 illustrates an optical element driving mechanism according to an embodiment of the present invention. [Figure 73] FIG. 2 is an exploded view of an optical element driving mechanism according to one embodiment of the present invention. [Figure 74] 1A and 1B are diagrams illustrating a movable part according to an embodiment of the present invention. [Figure 75] FIG. 10 illustrates a movable part in another perspective according to an embodiment of the present invention. [Figure 76] 1 is a cross-sectional view of an optical element driving mechanism according to an embodiment of the present invention. [Figure 77]FIG. 10 is another cross-sectional view of an optical element drive mechanism with the housing omitted in accordance with an embodiment of the present invention. [Figure 78] FIG. 1 illustrates a circuit board according to one embodiment of the present invention. [Figure 79] FIG. 10 illustrates an optical element driving mechanism in another view according to an embodiment of the present invention. [Figure 80] FIG. 2 illustrates a first electromagnetic driving member according to an embodiment of the present invention. [Figure 81] FIG. 10 illustrates another first electromagnetic driving member according to an embodiment of the present invention. [Figure 82] FIG. 10 is a bottom view of an optical element drive mechanism with the base omitted, according to one embodiment of the present invention. [Figure 83] FIG. 10 is another exploded view of an optical element driving mechanism according to an embodiment of the present invention. [Figure 84] 1 illustrates an electronic device according to one embodiment of the present invention. [Figure 85] 1 is a partial cross-sectional view of an electronic device according to one embodiment of the present invention. [Figure 86] FIG. 2 illustrates an optical element driving mechanism according to an embodiment of the present invention. [Figure 87] FIG. 2 is an exploded view of an optical element driving mechanism according to one embodiment of the present invention. [Figure 88] FIG. 2 illustrates a frame according to one embodiment of the present invention. [Figure 89] 10A and 10B show an optical element drive mechanism with the case omitted according to one embodiment of the present invention. [Figure 90] 1A and 1B are diagrams illustrating a first movable part according to an embodiment of the present invention. [Figure 91] FIG. 89 is a cross-sectional view taken along line 8-A-8-A of FIG. [Figure 92] 10A and 10B are diagrams illustrating a second movable part according to an embodiment of the present invention. [Figure 93] FIG. 93 is a cross-sectional view taken along line 8-B-8-B in FIG. 92. [Figure 94] 1 illustrates an electronic device according to one embodiment of the present invention. [Figure 95] 1 is a partial cross-sectional view of an electronic device according to an embodiment of the present invention. [Figure 96] FIG. 2 illustrates an optical element driving mechanism according to an embodiment of the present invention. [Figure 97] FIG. 2 is an exploded view of an optical element driving mechanism according to one embodiment of the present invention. [Figure 98] FIG. 97 is a cross-sectional view taken along line 9-A-9-A in FIG. 96. [Figure 99] FIG. 2 illustrates a base according to one embodiment of the present invention. [Figure 100] 1A and 1B are diagrams illustrating a first movable part according to an embodiment of the present invention. [Figure 101] FIG. 97 is a cross-sectional view taken along line 9-B-9-B in FIG. 96. [Figure 102] FIG. 10 illustrates an optical element driving mechanism according to another embodiment of the present invention. [Figure 103] FIG. 10 is an exploded view of an optical element drive mechanism according to another embodiment of the present invention. [Figure 104] FIG. 10 is a cross-sectional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 105] 10A and 10B are views showing a second guide member received in a recess according to another embodiment of the present invention; [Figure 106] 1 is a three-dimensional view of an optical element driving mechanism according to an embodiment of the present invention; [Figure 107] FIG. 107 is an exploded view of the optical element drive mechanism shown in FIG. 106. [Figure 108] FIG. 107 is a cross-sectional view taken along line 10-C-10-C' in FIG. [Figure 109] 3 is a three-dimensional view of a carrier and an elastic member according to an embodiment of the present invention. FIG. [Figure 110] 1 is a three-dimensional view of a frame and a base according to an embodiment of the present invention. [Figure 111] 3 is a partially enlarged three-dimensional view of a carrier and a base according to an embodiment of the present invention. [Figure 112] FIG. 2 is a three-dimensional view of a carrier according to an embodiment of the present invention. [Figure 113] 1 is a schematic diagram of an electronic device having an optical element driving mechanism according to one embodiment of the present invention; [Figure 114] 2 is a schematic diagram of an optical element driving mechanism and a prism module according to one embodiment of the present invention; [Figure 115] 1 is a three-dimensional view of an optical element driving mechanism and an optical element according to an embodiment of the present invention, with the outer frame of the optical element driving mechanism shown in dashed lines. [Figure 116] FIG. 2 is an exploded view of an optical element driving mechanism according to one embodiment of the present invention. [Figure 117] 2 is a schematic diagram of an optical element drive mechanism base, circuit board, drive magnetic element, and circuit assembly according to one embodiment of the present invention. [Figure 118] 2 is a schematic diagram of a drive coil and connecting circuitry of a circuit assembly of an optical element drive mechanism according to an embodiment of the present invention; [Figure 119A] 2 is a schematic diagram of a base, circuit assembly, and circuit board of an optical element drive mechanism according to one embodiment of the present invention. [Figure 119B] FIG. 2 is a bottom view of the circuit and circuit board of an optical element driving mechanism according to one embodiment of the present invention. [Figure 119C] 1 is a side view of a circuit assembly and a circuit board of an optical element driving mechanism according to an embodiment of the present invention; [Figure 120A] 1 is a partial schematic diagram of a base, circuit assembly, circuit board, and adhesive element of an optical element drive mechanism according to one embodiment of the present invention, with the base and circuit board shown in dashed lines; [Figure 120B] 1 is a partial enlarged view of a base, circuit assembly, and adhesive element of an optical element drive mechanism according to one embodiment of the present invention, with the base shown in dashed lines; [Figure 121] 1 is a schematic diagram of an optical element drive mechanism base, circuit board, and adhesive element according to one embodiment of the present invention. [Figure 122] 1 is a schematic diagram of an optical element driving mechanism base and circuit assembly according to one embodiment of the present invention. [Figure 123] 2 is a schematic diagram of a first segment, a second segment, and a connecting circuit of a circuit assembly of an optical element driving mechanism according to an embodiment of the present invention. [Figure 124] 1 is a three-dimensional view of an optical element driving mechanism according to an embodiment of the present invention; [Figure 125] FIG. 125 is an exploded view of the optical element drive mechanism shown in FIG. 124. [Figure 126] FIG. 125 is a cross-sectional view taken along line 12-B shown in FIG. 124. [Figure 127] FIG. 125 is an enlarged three-dimensional view of the optical element driving mechanism of FIG. 124. [Figure 128] FIG. 10 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 129] FIG. 10 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 130] FIG. 10 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 131] FIG. 2 is a schematic diagram of a matrix structure according to one embodiment of the present invention. [Figure 132] 1 is a three-dimensional diagram of a matrix structure according to one embodiment of the present invention; [Figure 133] 1 is a schematic diagram of an electronic device having an optical system according to one embodiment of the present invention; [Figure 134] 1 is a three-dimensional diagram of an optical system according to one embodiment of the present invention; [Figure 135] FIG. 1 is an exploded view of an optical system according to one embodiment of the present invention. [Figure 136] 1 is a three-dimensional view of a fixed outer frame, a circuit assembly, and two metal circuit assemblies of an optical system according to an embodiment of the present invention, with the fixed outer frame surface indicated by dashed lines. [Figure 137] 10 is a schematic diagram of a fixed outer frame and circuit assembly of an optical system according to another embodiment of the present invention. [Figure 138] FIG. 2 is a schematic diagram of an optical system according to another embodiment of the present invention. [Figure 139] 10 is a schematic diagram of a fixed outer frame and circuit assembly of an optical system according to another embodiment of the present invention. [Figure 140] 10 is a schematic diagram of a fixed outer frame and metal circuit assembly of an optical system according to another embodiment of the present invention. [Figure 141] FIG. 10 is a three-dimensional view of an optical system according to another embodiment of the present invention. [Figure 142] FIG. 2 is a top view of an optical system according to another embodiment of the present invention. [Figure 143] A cross-sectional view of an optical system along line 13-A-13-A of FIG. 142 according to another embodiment of the present invention. [Figure 144] FIG. 10 is a three-dimensional view of an optical system according to another embodiment of the present invention. [Figure 145] 1 is a three-dimensional diagram of an optical system according to one embodiment of the present invention; [Figure 146] FIG. 146 is a cross-sectional view of the optical system shown in FIG. 145. [Figure 147] 1 is a cross-sectional view of an optical system according to another embodiment of the present invention. [Figure 148] 1 is a three-dimensional diagram of an optical system according to one embodiment of the present invention; [Figure 149] FIG. 149 is a cross-sectional view of the optical system shown in FIG. 148. [Figure 150] FIG. 2 is a three-dimensional view of a second optical element and a fifth optical element according to an embodiment of the present invention. [Figure 151] 1 is a three-dimensional view of an optical element driving mechanism according to an embodiment of the present invention; [Figure 152] FIG. 152 is an exploded view of the optical element drive mechanism shown in FIG. 151. [Figure 153] 152 is a cross-sectional view taken along line 16-B shown in FIG. 151. [Fig. 154] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 155] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 156] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 157] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 158] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 159] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 160] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 161] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 162] 1 is a schematic diagram of an optical system according to one embodiment of the present invention; [Figure 163] 1 is a three-dimensional view of a beam adjusting module according to some embodiments of the present invention. [Fig. 164] 1 is an exploded view of a beam adjusting module according to some embodiments of the present invention. [Figure 165] 1 is a cross-sectional view of a beam adjusting module according to some embodiments of the present invention. [Figure 166] This is an enlarged view of portion 17-C of Figure 165. [Figure 167] FIG. [Figure 168] FIG. [Figure 169] FIG. 2 is a schematic diagram of a connecting element. [Figure 170] FIG. 2 is a schematic diagram of a first blade. [Figure 171] FIG. 4 is a schematic diagram of a second blade. [Figure 172] 1A and 1B are schematic diagrams of a light flux adjusting module when viewed in different directions. [Figure 173] 1A and 1B are schematic diagrams of a light flux adjusting module when viewed in different directions. [Fig. 174] 1A and 1B are schematic diagrams of a light flux adjusting module when viewed in different directions. [Figure 175] 1A and 1B are schematic diagrams of a light flux adjusting module when viewed in different directions. [Figure 176] 1A and 1B are schematic diagrams of a light flux adjusting module when viewed in different directions. [Figure 177] 1A and 1B are schematic diagrams of a light flux adjusting module when viewed in different directions. [Figure 178] 10A and 10B are schematic diagrams of the light flux adjusting module when viewed in different directions after the connecting element is further driven. [Figure 179] 10A and 10B are schematic diagrams of the light flux adjusting module when viewed in different directions after the connecting element is further driven. [Figure 180] 10A and 10B are schematic diagrams of the light flux adjusting module when viewed in different directions after the connecting element is further driven. [Figure 181] FIG. 1 is an exploded view of an optical element drive mechanism according to some embodiments of the present invention. [Figure 182] FIG. 10 is a schematic diagram of the optical element driving mechanism after the outer box has been removed. [Figure 183] FIG. 1 is a side view of some elements of an optical element drive mechanism. [Figure 184] FIG. 2 is a schematic diagram of an optical element driving mechanism. [Figure 185] 1 is a schematic diagram of an optical element driving mechanism according to some embodiments of the present invention. [Figure 186] 1 is a schematic diagram of an optical element driving mechanism according to some embodiments of the present invention. [Figure 187] 1 is a schematic diagram of an optical system according to some embodiments of the present invention. [Figure 188] 1 is a schematic diagram of an optical system according to some embodiments of the present invention. [Figure 189] 1 is a front view of an electronic device according to one embodiment of the present invention. [Figure 190] FIG. 2 is an exploded view of an optical element driving mechanism according to one embodiment of the present invention. [Figure 191] FIG. 2 is a partial exploded view of an optical element driving mechanism according to one embodiment of the present invention. [Figure 192] 18-A-18-A' is a cross-sectional view of an optical element driving mechanism according to one embodiment of the present invention taken along line 18-A-18-A' in FIG. 191. [Figure 193]192 is a cross-sectional view of the optical element driving mechanism taken along line BB' of FIG. 191 according to one embodiment of the present invention. [Figure 194] 1 is a cross-sectional view of an optical element driving mechanism according to an embodiment of the present invention. [Figure 195] FIG. 2 is a bottom view of a portion of the structure of an optical element driving mechanism according to an embodiment of the present invention. [Figure 196] 1 is a top view of a portion of the structure of an optical element driving mechanism according to an embodiment of the present invention; [Figure 197] FIG. 10 is a partial structural diagram of an optical element driving mechanism according to another embodiment of the present invention. [Figure 198] FIG. 198 is a top view of the optical element drive mechanism of FIG. 197 according to another embodiment of the present invention. [Figure 199] FIG. 10 is a cross-sectional view of an optical element driving mechanism according to another embodiment of the present invention. [Figure 200] 1 is a three-dimensional view of an optical element driving mechanism and an optical element according to some embodiments of the present invention. [Figure 201] FIG. 201 is an exploded view of the optical element drive mechanism of FIG. [Figure 202] FIG. 2 is a schematic diagram of an optical element driving mechanism. [Figure 203] FIG. [Figure 204] FIG. 2 is a top view of the circuit assembly. [Figure 205] FIG. [Figure 206] FIG. 2 is a cross-sectional view of a portion of an optical element driving mechanism. [Figure 207] FIG. [Figure 208] 10 is a three-dimensional view of a second elastic element, a circuit assembly, and a bottom plate. FIG. [Figure 209] FIG. 2 is a schematic diagram of a part of an optical element driving mechanism. [Figure 210] FIG. 1 is a three-dimensional view of a portion of an optical element driving mechanism. [Figure 211] FIG. 1 is a three-dimensional view of a portion of an optical element driving mechanism. [Figure 212]2 is a schematic diagram of an externally connected circuit member and an electronic element. FIG. [Figure 213] FIG. 10 is a bottom view of the optical element driving mechanism. [Figure 214] FIG. [Figure 215] FIG. 10 is a three-dimensional view of a portion of the holder and the second elastic element. [Figure 216] 10A-10C are three-dimensional diagrams of optical element driving mechanisms according to some alternative embodiments of the present invention. [Figure 217] 10A and 10B are bottom views of optical element drive mechanisms according to some alternative embodiments of the present invention. [Figure 218] 10A-10C are schematic diagrams of optical element driving mechanisms according to some alternative embodiments of the present invention. [Figure 219] 10A-10C are schematic diagrams of optical element driving mechanisms according to some alternative embodiments of the present invention. [Figure 220] 1 is a cross-sectional view of an optical module, an adjustment assembly, and an image sensor module of a camera module optical system according to an embodiment of the present invention. [Figure 221] 221 is a bottom view of the optical module in FIG. 220. [Figure 222] 221 shows the optical elements in the optical module of the optical system of FIG. 220 tilted relative to the image sensor module and undergoing an adjustment process. [Figure 223] 221 shows the optical elements in the optical module of the optical system of FIG. 220 tilted relative to the image sensor module and undergoing an adjustment process. [Figure 224] FIG. 10 illustrates a camera module optical system according to another embodiment of the present invention. [Figure 225] FIG. 1 shows an adjustment column and several different counter members. [Figure 226] FIG. 1 shows multiple tuning columns with different geometries. [Figure 227] FIG. 1 shows multiple tuning columns with different geometries. [Figure 228]1 is a schematic diagram of an optical element driving mechanism according to some embodiments of the present invention. [Figure 229] FIG. 229 is an exploded view of the optical element drive mechanism of FIG. 228. [Figure 230] FIG. 229 is a front view of the optical element drive mechanism of FIG. 228. [Figure 231] 1 is a schematic diagram of a movable part and a connecting element. [Figure 232] 1 is a schematic diagram of a base and a connecting element. [Figure 233] 1A-1C are schematic diagrams of an optical element driving mechanism viewed from different directions during operation according to some embodiments of the present invention. [Figure 234] 1A-1C are schematic diagrams of an optical element driving mechanism viewed from different directions during operation according to some embodiments of the present invention. [Figure 235] 1A-1C are schematic diagrams of an optical element driving mechanism viewed in different directions as the optical element driving mechanism operates according to some embodiments of the present invention. [Figure 236] 1A-1C are schematic diagrams of an optical element driving mechanism viewed in different directions as the optical element driving mechanism operates according to some embodiments of the present invention. [Figure 237] 1 is a schematic diagram of an optical element driving mechanism according to some embodiments of the present invention. [Figure 238] 1A and 1B are cross-sectional views of optical element driving mechanisms according to some embodiments of the present invention. [Figure 239] 1 is a three-dimensional view of an optical element driving mechanism according to an embodiment of the present invention; [Figure 240] FIG. 239 is an exploded view of the optical element drive mechanism shown in FIG. [Figure 241] 22-B is a cross-sectional view taken along line 22-B of FIG. 239. [Figure 242] 1 is a three-dimensional view of a base and guide assembly according to one embodiment of the present invention. [Figure 243] 1 is a three-dimensional view of a base and circuit components according to one embodiment of the present invention. [Figure 244] FIG. 2 is a three-dimensional view of a movable part according to an embodiment of the present invention. [Figure 245] 1 is a three-dimensional view of the internal structure of an optical element driving mechanism according to an embodiment of the present invention; [Figure 246] FIG. 2 is a top view of a base according to one embodiment of the present invention. [Figure 247] FIG. 10 is a bottom view of a base according to one embodiment of the present invention. [Figure 248] 1A and 1B are diagrams illustrating a driving mechanism for an optical element according to an embodiment of the present invention. [Figure 249] FIG. 249 is an exploded view of the drive mechanism of the optical element of FIG. 248. [Figure 250] FIG. 249 is a front view of the drive mechanism of FIG. 248; [Figure 251] FIG. 10 shows a movable part and a resilient assembly. [Figure 252] 10A and 10B are diagrams showing a movable part driven by a drive assembly and an optical element. [Figure 253] 10A and 10B are diagrams showing a movable part driven by a drive assembly and an optical element. [Figure 254] 1 is a cross-sectional view of an optical module, an adjustment assembly, and an image sensor module according to an embodiment of the present invention; [Figure 255] FIG. 255 is a bottom view of the optical module of FIG. 254. [Figure 256] FIG. 255 shows the optical system of FIG. 254 assembled and adjusted. [Figure 257] FIG. 255 shows the optical system of FIG. 254 assembled and adjusted. [Figure 258] FIG. 255 shows the optical system of FIG. 254 assembled and adjusted. [Figure 259] FIG. 255 shows the optical system of FIG. 254 assembled and adjusted. [Figure 260] 1 is a flowchart of a method for adjusting an optical system according to an embodiment of the present invention. [Figure 261]FIG. 2 illustrates an optical system according to another embodiment of the present invention. [Figure 262] FIG. 2 illustrates an optical system according to another embodiment of the present invention. [Figure 263] FIG. 2 illustrates an optical system according to another embodiment of the present invention. [Figure 264] FIG. 10 illustrates an optical system assembled and adjusted according to another embodiment of the present invention. [Figure 265] FIG. 10 illustrates an optical system assembled and adjusted according to another embodiment of the present invention. [Figure 266] FIG. 10 illustrates an optical system assembled and adjusted according to another embodiment of the present invention. [Figure 267] 1 is a flowchart of an adjustment direction of an optical system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] The optical element driving mechanisms of some embodiments of the present invention are described in the following description. However, it should be understood that the following detailed description of some embodiments of the present disclosure provides various concepts of the present disclosure implemented in a variety of specific contexts. The specific embodiments disclosed are intended to illustrate the use of the present disclosure in some specific ways and are not intended to limit the scope of the present disclosure.

[0021] In this specification, relative terms are used, such as "lower", "bottom", "higher" and "top" to describe the position of elements relative to one another. It should be understood that if the device were inverted, an element on the "lower" side would also become an element on the "upper" side.

[0022] It should be understood that, although terms such as "first," "second," and "third" are used herein to describe various elements, materials, and / or portions, these elements, materials, and / or portions are not limited by these terms. These terms merely distinguish between different elements, materials, and / or portions. Thus, a first element, material, and / or portion may be referred to as a second element, material, and / or portion without departing from the teachings of some embodiments of the present disclosure.

[0023] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art. It is further understood that, for example, terms commonly defined in dictionaries should be interpreted as having the same meaning in the context of the relevant technical text, and should not be interpreted as idealized or overly formal unless specifically defined. In addition, the terms "substantially," "nearly," and "about" are also used in this disclosure, and these terms are intended to encompass situations and scopes that are substantially or completely the same as the individual descriptions. It should be noted that unless specifically defined, even if the above terms are not specified in the description, they should be understood to have the same meaning as their approximate terms.

[0024] First embodiment

[0025] FIG. 1 is a three-dimensional diagram of an optical element driving mechanism 1-801 and an optical element 1-802 according to some embodiments of the present invention. The optical element 1-802 has an optical axis 1-O. The optical axis 1-O is a virtual axis passing through the center of the optical element 1-802. The optical element driving mechanism 1-801 is a telephoto lens. Specifically, the telephoto lens is provided with a reflective element (not shown) to change the direction of the light ray 1-L. When the light ray 1-L outside the optical element driving mechanism 1-801 enters the optical element driving mechanism 1-801 from a first direction (Y axis), the light ray 1-L is not parallel to the optical axis 1-O and is approximately perpendicular to the optical axis 1-O, as shown in FIG. 1. The reflective element (not shown) changes the direction of the light ray 1-L, causing the light ray 1-L to become parallel to the optical axis 1-O. After the light beam 1-L passes through the optical element driving mechanism 1-801, an image is formed on a light beam detecting element (not shown) (eg, a charge coupled detector, CCD).

[0026] The optical element driving mechanism 1-801 moves, rotates, etc. the optical element 1-802. The optical element driving mechanism 1-801 moves the optical element 1-802 along a direction parallel to the optical axis 1-O to achieve the autofocus (AF) function and focus on the scene. In addition, the optical element driving mechanism 1-801 also moves the optical element 1-802 along a direction not parallel to the optical axis 1-O to achieve optical image stabilization (OIS), which compensates for deviations in the image caused by shaking or impact and solves the problem of blurred images and videos. The image quality is improved by AF and OIS.

[0027] Figure 2 is an exploded view of the optical element driving mechanism 1-801 of Figure 1. The optical element driving mechanism 1-801 includes a fixed portion 1-811, a movable portion 1-812, a first drive assembly 1-880, and a second drive assembly 1-890. The movable portion 1-812 moves relative to the fixed portion 1-811 and carries the optical element 1-802. The fixed portion 1-811 includes a case 1-820, a frame 1-830, and a base 1-920. The movable portion 1-812 includes four first elastic elements 1-840, four second elastic elements 1-850, a holder 1-860, two magnetic-conductive elements 1-870, a circuit assembly 1-900, and two sensing elements 1-910. Elements can be added or removed.

[0028] The case 1-820 and the frame 1-830 are positioned above the base 1-920. When the case 1-820 is connected to the base 1-920, a space is formed therein to accommodate the frame 1-830, the movable part 1-812, the first drive assembly 1-880, and the second drive assembly 1-890.

[0029] The case 1-820 is made of a magnetically permeable material, and therefore has advantages such as good magnetic coercivity, concentrating magnetic field lines, etc. The magnetically permeable material is a material that is magnetized when a magnetic field is applied, such as a ferromagnetic material, steel (e.g., cold-rolled steel sheet, SPCC), iron (iron / ferrum, Fe), nickel (Ni), cobalt (Co), or an alloy thereof. Preferably, the case 1-820 is made of a material with high magnetic permeability.

[0030] The frame 1-830 may be formed from a non-conductive material or a magnetically permeable material, such as plastic or a metal alloy. When the frame 1-830 is formed from a magnetically permeable material, the frame 1-830 also has good magnetic coercivity, concentrates magnetic field lines, and has high structural strength compared to non-conductive materials.

[0031] The case 1-820 has a sidewall 1-821 perpendicular to the optical axis 1-O and another sidewall 1-822 opposite the sidewall 1-821. An opening 1-823 and an opening 1-824 are formed on the sidewall 1-821 and the sidewall 1-822, respectively. The positions of the openings 1-823 and 1-824 correspond to the optical element 1-802. The optical element 1-802 is disposed between the sidewall 1-821 and the sidewall 1-822. After the light beam 1-L passes through a reflecting element (not shown), the light beam 1-L enters the optical element driving mechanism 1-801 through the opening 1-823 and exits the optical element driving mechanism 1-801 through the opening 1-824.

[0032] The first elastic element 1-840 is positioned on the holder 1-860. The first elastic element 1-840 has an elastic material and is formed of metal. The four second elastic elements 1-850 have an elongated shape. The four second elastic elements 1-850 respectively connect the four elastic elements 1-840 of the movable part 1-812 and the base 1-920 of the fixed part 1-811. Typically, the second elastic elements 1-850 are energized to generate electromagnetic force in the first drive assembly 1-880 or the second drive assembly 1-890. However, the second elastic elements 1-850 of the present disclosure do not need to be energized and primarily serve a support function.

[0033] A holder 1-860 is installed between the frame 1-830 and the base 1-920. The holder 1-860 has a through hole 1-861 to mount the optical element 1-802. In some embodiments, a screw and its corresponding thread structure are installed between the through hole 1-861 and the optical element 1-802, and the optical element 1-802 is attached in the through hole 1-861. The holder 1-860 is spaced from the case 1-820 and base 1-920 of the fixing part 1-811, i.e., the holder 1-860 does not directly contact the case 1-820 and base 1-920.

[0034] The magnetic-permeable element 1-870 is formed from a magnetically permeable material. Preferably, the magnetic-permeable element 1-870 is formed from a material having high magnetic permeability. The function of the magnetic-permeable element 1-870 is described in connection with FIG.

[0035] The first drive assembly 1-880 has four first magnetic elements 1-881 and four first coils 1-882 corresponding to the first magnetic elements 1-881. Two of the first coils 1-882 and two other first coils 1-882 are disposed on opposite sides of the holder 1-860. When viewed along the first direction (Y-axis), the two first magnetic elements 1-881 and the other first magnetic element 1-881 are disposed on different sides of the optical axis 1-O, and the two first coils 1-882 and the other two first coils 1-882 are disposed on different sides of the optical axis 1-O. The first magnetic elements 1-881 and the first coils 1-882 are disposed along the first direction (Y-axis). The first drive assembly 1-880 moves the holder 1-860 of the movable portion 1-812 along the second direction (Z-axis) relative to the base 1-920 of the fixed portion 1-811 to achieve the AF function.

[0036] The second drive assembly 1-890 has two second magnetic elements 1-891 and two second coils 1-892 corresponding to the second magnetic elements 1-891. One second coil 1-892 and the other second coil 1-892 are disposed on opposite sides of the holder 1-860. When viewed along the first direction (Y-axis), the one second magnetic element 1-891 and the other second magnetic element 1-891 are disposed on different sides of the optical axis 1-O, and the one second coil 1-892 and the other second coil 1-892 are disposed on different sides of the optical axis 1-O. Therefore, when viewed along the first direction (Y-axis), the first drive assembly 1-880 and the second drive assembly 1-890 are disposed on different sides of the optical axis 1-O. The second magnetic elements 1-891 and the second coil 1-892 are also disposed along the first direction (Y-axis). The second drive assembly 1-890 moves the holder 1-860 of the movable part 1-812 along a third direction (X-axis) relative to the base 1-920 of the fixed part 1-811 to achieve the OIS function. The first direction (Y-axis), the second direction (Z-axis), and the third direction (X-axis) are different. In this embodiment, the first direction (Y-axis), the second direction (Z-axis), and the third direction (X-axis) are different. axes) are approximately perpendicular to each other.

[0037] The lower surface of each first magnetic element 1-881 faces the first coil 1-882, and the lower surface of each second magnetic element 1-891 faces the second coil 1-892. The lower surface of each first magnetic element 1-881 is parallel to the lower surface of each second magnetic element 1-891.

[0038] Each first coil 1-882 has a perforation 1-883 and a winding axis 1-884. The winding axis 1-884 is an imaginary axis that passes through the center of the perforation 1-883. Each second coil 1-892 has a perforation 1-893 and a winding axis 1-894. The winding axis 1-894 is an imaginary axis that passes through the center of the perforation 1-893. The winding axis 1-884 of the first coil 1-882 is parallel to the winding axis 1-894 of the second coil 1-892. When viewed in the second direction (Z-axis), the first coil 1-882 partially overlaps the second coil 1-892.

[0039] As shown in FIG. 2, each second magnetic element 1-891 is disposed between two first magnetic elements 1-881, and each second coil 1-892 is disposed between two first coils 1-882. When a corresponding first magnetic element 1-881 and a corresponding first coil 1-882 are referred to as a first drive assembly 1-880, there are two or more first drive assemblies 1-880, and a second drive assembly 1-890 is disposed between the first drive assemblies 1-880. The first drive assembly 1-880 and the second drive assembly 1-890 are arranged along the second direction (Z-axis). Because the second direction (Z-axis) is parallel to the optical axis 1-O, the optical axis 1-O and the arrangement directions of the first drive assembly 1-880 and the second drive assembly 1-890 are also approximately parallel.

[0040] When viewed along a direction parallel to the optical axis 1-O, the first drive assembly 1-880 at least partially overlaps with the second drive assembly 1-890. Compared to an arrangement in which the first drive assembly 1-880 does not overlap with the second drive assembly 1-890, this arrangement reduces the size of the optical element drive mechanism 1-801 in the first direction (Y-axis). For example, if the size of the first drive assembly 1-880 in the first direction (Y-axis) is a and the size of the second drive assembly 1-890 in the first direction (Y-axis) is b, when the first drive assembly 1-880 does not overlap with the second drive assembly 1-890, the sum of the sizes of the first drive assembly 1-880 and the second drive assembly 1-890 is at least a + b. Conversely, when viewed along a direction parallel to the optical axis 1-O, when the first drive assembly 1-880 does not overlap with the second drive assembly 1-890, the sum of the sizes of the first drive assembly 1-880 and the second drive assembly 1-890 is equal to or less than a + b.

[0041] The circuit assembly 1-900 is mounted on a base 1-920. The circuit assembly 1-900 is a circuit board, such as a flexible printed circuit (FPC) or a flexible-hard composite board. The circuit assembly 1-900 includes electronic elements (not shown), such as capacitance, resistor, inductance, etc. A first coil 1-882 and a second coil 1-892 are mounted on the circuit assembly 1-900.

[0042] The sensing element 1-910 is a Hall sensor, a magnetoresistive (MR) sensor, a giant magnetoresistive (GMR) sensor, a tunnel magnetoresistive (TMR) sensor, etc. The sensing element 1-910 senses the movement of the fixed part 1-811 of the holder 1-860 of the movable part 1-812 relative to the base 1-920.

[0043] Two sensing elements 1-910 are respectively disposed in the bore 1-883 of one of the first coils 1-882 and the bore 1-893 of one of the second coils 1-892. Since the first coil 1-882 and the second coil 1-892 are disposed on the circuit assembly 1-900, the sensing elements 1-910 are also disposed on the circuit assembly 1-900. In this embodiment, the two sensing elements 1-910 sense movement of the holder 1-860 in different directions relative to the base 1-920. For example, the sensing element 1-910 disposed in the bore 1-883 of the first coil 1-882 senses movement of the holder 1-860 in the second direction (Z-axis), and the sensing element 1-910 disposed in the bore 1-893 of the second coil 1-892 senses movement of the holder 1-860 in the third direction (X-axis).

[0044] The first coil 1-882, the second coil 1-892, and the sensing element 1-910 are located fairly close together and electrically connected to the circuit assembly 1-900, concentrating and therefore simplifying the circuitry, which is why the second elastic element 1-850 of the present disclosure does not need to be energized, as discussed above.

[0045] Next, let us refer to Figures 3 and 4 together. Figure 3 is a three-dimensional view of the optical element driving mechanism 1-801 with some elements omitted. Figure 4 is a side view of the optical element driving mechanism 1-801 with some elements omitted. As shown in Figures 3 and 4, when viewed along the third direction (X-axis), the first driving assembly 1-880 at least partially overlaps with the optical element 1-802, and the second driving assembly 1-890 also at least partially overlaps with the optical element 1-802. Compared to an arrangement in which the first driving assembly 1-880 or the second driving assembly 1-890 does not overlap with the optical element 1-802, this arrangement reduces the size of the optical element driving mechanism 1-801 in the first direction (Y-axis), thereby achieving a compact optical element driving mechanism 1-801.

[0046] FIG. 5 illustrates the magnetic-permeable element 1-870, the first drive assembly 1-880, and the second drive assembly 1-890. The first magnetic element 1-881 and the second magnetic element 1-891 described herein have multiple magnetic poles separated by dotted lines. The orientation of the magnetic poles of the first magnetic element 1-881 and the second magnetic element 1-891 can lead to the misunderstanding that the magnetic poles of the first magnetic element 1-881 and the second magnetic element 1-891 are arranged in multiple different directions. To avoid such misunderstanding, it should be noted that the term "magnetic poles" in this context refers to the north and south poles that together generate closed magnetic field lines.

[0047] 6 and 7 illustrate the magnetic pole orientation of the first magnetic element 1-881. FIGS. 6 and 7 show the first magnetic element 1-881 as viewed from a third direction (X-axis). The north and south poles shown in FIGS. 6 and 7 are interchangeable. The first magnetic element 1-881 can be a single multipole magnet (FIG. 6) or a magnet formed by bonding multiple magnets (FIG. 7). These two types of first magnetic element 1-881 have different advantages. The single multipole magnet shown in FIG. 6 is easy to assemble, but during assembly, a depletion region is formed between the multipole magnets, which cannot generate magnetic force. If the first magnetic element 1-881 has a depletion region, the weight of the optical element driving mechanism 1-801 increases. The magnet formed by bonding multiple magnets shown in FIG. 7 does not have a depletion region, but an extra bonding process is required. It should be noted that the optional second magnetic element 1-891 may also be a single multi-pole magnet or a magnet formed by bonding multiple magnets together, meaning that when viewed from the second direction (Z-axis), the magnetic poles of the second magnetic element 1-891 have the same arrangement as in FIG.

[0048] Referring again to FIG. 5, the first coil 1-882 has a first segment 1-886 and a second segment 1-887 that are parallel to the third direction (X-axis) and face each other. The second coil 1-892 has a third segment 1-896 and a fourth segment 1-897 that are parallel to the second direction (Z-axis) and face each other. The first segment 1-886, the second segment 1-887, the third segment 1-896, and the fourth segment 1-897 are "primary current regions." The primary current regions are regions where current flow generates an electromagnetic driving force. Current flowing through the first segment 1-886, the second segment 1-887, the third segment 1-896, and the fourth segment 1-897 generates an electromagnetic driving force between the first magnetic element 1-881 and the second magnetic element 1-891, moving the holder 1-860. The electromagnetic force generated by the non-"main current regions" (those not indicated by hatching) of the first magnetic element 1-881 and the second magnetic element 1-891 is weak, and therefore it is difficult to move the holder 1-860.

[0049] The direction of current flowing through the first segment 1-886 is opposite to the direction of current flowing through the second segment 1-887. To move the entire first coil 1-882 in the same direction, the right-hand rule (which describes the relationship between current, magnetic fields, and electromagnetic force) dictates that the direction of the magnetic field corresponding to the first segment 1-886 and the direction of the magnetic field corresponding to the second segment 1-887 must be opposite. Therefore, the magnetic pole of the first magnetic element 1-881 corresponding to the first segment 1-886 is different from the magnetic pole of the first magnetic element 1-881 corresponding to the second segment 1-887. Similarly, the direction of current flowing through the third segment 1-896 is opposite to the direction of current flowing through the fourth segment 1-897, and the magnetic pole of the second magnetic element 1-891 of the third segment 1-896 is opposite to the magnetic pole of the second magnetic element 1-891 corresponding to the fourth segment 1-897.

[0050] Because the main current region needs to have as large a magnetic pole area as possible to generate as large an electromagnetic driving force as possible, the magnetic poles of the first magnetic element 1-881 are arranged in the same direction as the first segment 1-886 and the second segment 1-887. Furthermore, the magnetic poles of the second magnetic element 1-891 are arranged in the same direction as the third segment 1-896 and the fourth segment 1-897. Therefore, the magnetic poles of the first magnetic element 1-881 are arranged along the second direction (Z-axis), and the magnetic poles of the second magnetic element 1-891 are arranged along the third direction (X-axis).

[0051] Additionally, for ease of explanation, the direction of the electromagnetic driving force is indicated by an arrow. The direction of current flow is either clockwise or counterclockwise. When current flows through the first coil 1-882, the direction of the electromagnetic driving force generated between the main current region (first segment 1-886 and second segment 1-887) and the first magnetic element 1-881 is the second direction (having a +Z axis and a -Z axis; in FIG. 5, only the +Z axis is shown), so the holder 1-860 moves along the second direction (Z axis).

[0052] When current flows through the second coil 1-892, the direction of the electromagnetic driving force generated between the main current region (third segment 1-896 and fourth segment 1-897) and the second magnetic element 1-891 is a third direction (having a +X axis and a -X axis, with only the +X axis shown in Figure 5), so that the holder 1-860 moves along the third direction (X axis).

[0053] The contour shape of the magnetic-permeable element 1-870 is designed to correspond to the contour shapes of the first magnetic element 1-881 and the second magnetic element 1-891. The magnetic-permeable element 1-870 is integrally molded, simplifying the bonding process. One magnetic-permeable element 1-870 is simultaneously connected to two first magnetic elements 1-881 and one second magnetic element 1-891. For example, to bond one magnetic-permeable element 1-870 that is integrally molded to two first magnetic elements 1-881 and one second magnetic element 1-891, only one bonding process is required. If the magnetic-permeable element 1-870 is not integrally molded, the bonding process to connect the magnetic-permeable element 1-870 to two first magnetic elements 1-881 and one second magnetic element 1-891 must be performed several times. Therefore, integral molding of the magnetic-permeable element 1-870 simplifies the manufacturing process.

[0054] Furthermore, the first magnetic element 1-881 and the second magnetic element 1-891 have small volumes. When two small-volume first magnetic elements 1-881 and two small-volume second magnetic elements 1-891 are bonded to one magnetic-permeable element 1-870, a set of elements with a large volume can be formed, which facilitates subsequent assembly.

[0055] When viewed along the first direction (Y-axis), the magnetic-permeable element 1-870, the first drive assembly 1-880, and the second drive assembly 1-890 partially overlap. Because the magnetic-permeable element 1-870 is positioned in close proximity to the first magnetic element 1-881 and the second magnetic element 1-891, the magnetic-permeable element 1-870 can attract and concentrate the magnetic field lines of the first magnetic element 1-881 and the second magnetic element 1-891, thereby strengthening the generated magnetic force.

[0056] FIG. 8 is a three-dimensional view of the holder 1-860, shown at a different angle from FIG. 1. One side of the holder 1-860, close to the base 1-920, has a plurality of protrusions 1-862 and a plurality of recesses 1-863. The holder 1-860 is made of plastic, which is prone to deformation during molding due to thermal expansion and contraction, etc. To avoid the holder 1-860 being deformed and the magnetic-permeable element 1-870 being unable to be accommodated within the holder 1-860, the protrusions 1-862 of the holder 1-860 are coupled with the magnetic-permeable element 1-870. The protrusions 1-862 of the holder 1-860 are flake-shaped. The recesses 1-863 of the holder 1-860 receive the magnetic-permeable element 1-870.

[0057] Figure 9 is a layout diagram of a first drive assembly 1-880 and a second drive assembly 1-890 according to some alternative embodiments of the present invention. Figure 10 is a top view of the first drive assembly 1-880 and the second drive assembly 1-890 of Figure 9. In the following content, the same elements are designated by the same reference numerals, similar elements are designated by similar reference numerals, and the same content is omitted.

[0058] In this embodiment, the position of the second magnetic element 1-891 of the second drive assembly 1-890 is interchangeable with the position of the second coil 1-892 of the second drive assembly 1-890, so that the second coil 1-892 is located above the second magnetic element 1-891. The lower surface of each first magnetic element 1-881 faces the first coil 1-882, and the upper surface of each second magnetic element 1-891 faces the second coil 1-892. Moreover, the lower surface of each first magnetic element 1-881 and the upper surface of each second magnetic element 1-891 face in different directions.

[0059] Four additional magnetic-permeable elements 1-970 are provided to avoid magnetic interference generated between the first magnetic element 1-881 and the second coil 1-892, or between the second magnetic element 1-891 and the first coil 1-882. The four magnetic-permeable elements 1-970 are installed between the first drive assembly 1-880 and the second drive assembly 1-890. Thus, when viewed in the second direction (Z-axis), the first drive assembly 1-880, the second drive assembly 1-890, and the magnetic-permeable elements 1-970 partially overlap.

[0060] As described above, an optical element driving mechanism is provided. According to the present invention, the miniaturization of the optical element driving mechanism is achieved by arranging and installing the first driving assembly and the second driving assembly. Furthermore, displacement correction and displacement compensation are achieved by the first driving assembly and the second driving assembly.

[0061] Second embodiment

[0062] 11 is a three-dimensional diagram of an optical element driving mechanism 2-801 according to one embodiment of the present invention. It should be noted that in this embodiment, the optical element driving mechanism 2-801 is installed in, for example, an electronic device having a camera function to drive the optical element 2-900 and perform autofocus (AF) and / or optical image stabilization (OIS) functions.

[0063] As shown in FIG. 11 , the optical element driving mechanism 2-801 has a central axis C that is approximately parallel to the Z-axis. The optical element driving mechanism 2-801 has a first optical axis 2-O1 that is approximately parallel to the X-axis. The optical element driving mechanism 2-801 has a housing 2-810 having a top surface 2-811 and a first side surface 2-812. The top surface 2-811 extends in a direction parallel to the first optical axis 2-O1 (i.e., the XY plane). The first side surface 2-812 extends from an edge of the top surface 2-811 along a direction perpendicular to the first optical axis 2-O1 (the Z-axis). In some embodiments, the first side surface 2-812 extends from an edge of the top surface 2-811 along a direction that is not parallel to the first optical axis 2-O1. In addition, the housing 2-810 has a first opening 2-815 located on the first side 2-812, and the first optical axis 2-O1 passes through the first opening 2-815.

[0064] The optical element driving mechanism 2-801 further includes a reflecting member 2-890 installed in the housing 2-810 of the optical element driving mechanism 2-801, and the reflecting member 2-890 has a second optical axis 2-02 that is approximately parallel to the Z axis. In this embodiment, the first optical axis 2-01 is approximately perpendicular to the second optical axis 2-02, but is not limited thereto. In some embodiments, the first optical axis 2-01 is not parallel to the second optical axis 2-02. As a result, light rays enter the optical element driving mechanism 2-801 along the second optical axis 2-02, and the direction of the light rays is changed by the reflecting member 2-890 so that the light rays pass through the optical element 2-900 along the first optical axis 2-01. After passing through the optical element 2-900, the light rays reach an image sensor (not shown) installed outside the optical element driving mechanism 2-801, thereby generating an image on an electronic device.

[0065] Figure 12 is an exploded view of the optical element driving mechanism 2-801 shown in Figure 11. In this embodiment, the optical element driving mechanism 2-801 has a substantially rectangular structure. The optical element driving mechanism 2-801 mainly includes a fixed part 2-F, a movable part 2-M, a plurality of first elastic members 2-860, a plurality of second elastic members 2-861, a first electromagnetic driving assembly 2-840, and a second electromagnetic driving assembly 2-845. The fixed part 2-F includes a housing 2-810, a base 2-820, a frame 2-850, and a circuit component 2-870.

[0066] The housing 2-810 is mounted on the base 2-820 and protects the elements mounted in the optical element driving mechanism 2-801. In some embodiments, the housing 2-810 is formed from metal or another material with sufficient strength to achieve a desirable protective effect. The frame 2-850 is mounted and fixed within the housing 2-810. The circuit components 2-870 are mounted on the base 2-820 and transmit electrical signals to perform autofocus (AF) and / or optical image stabilization (OIS) functions. For example, the optical element driving mechanism 2-801 controls the position of the optical element 2-900 based on the electrical signals to form an image.

[0067] The movable part 2-M is movable relative to the fixed part 2-F. The movable part 2-M mainly includes a carrier 2-830 carrying an optical element 2-900. As shown in FIG. 12, the carrier 2-830 is movable and connected to the housing 2-810 and the base 2-820. A first elastic member 2-860 is installed on the carrier 2-830. A second elastic member 2-861 extends in the vertical direction (Z-axis) and is connected to the first elastic member 2-860 and the base. As a result, the carrier 2-830 is connected to the base 2-820 by the first elastic member 2-860 and the second elastic member 2-861. For example, the first elastic member 2-860 and the second elastic member 2-861 may be formed of metal or another suitable elastic material.

[0068] The first electromagnetic drive assembly 2-840 includes a first magnetic member 2-841 and a first drive coil 2-842. The first magnetic member 2-841 is mounted on the frame 2-850, and a corresponding first drive coil 2-842 is mounted on the carrier 2-830. When a current is applied to the first drive coil 2-842, an electromagnetic drive force is generated by the first drive coil 2-842 and the first magnetic member 2-841 (i.e., the first electromagnetic drive assembly 2-840) to move the carrier 2-830 and the optical element 2-900 along the horizontal direction (XY plane) relative to the base 2-820, thereby performing autofocus (AF) and / or optical image stabilization (OIS) functions.

[0069] In addition, the second electromagnetic drive assembly 2-845 includes a second magnetic member 2-846 and a second drive coil 2-847. The second magnetic member 2-846 is mounted on the carrier 2-830, and the corresponding second drive coil 2-847 is mounted on the base 2-820. For example, the second drive coil 2-847 is a flat plate coil, which reduces assembly difficulty and time. When current is applied to the second drive coil 2-847, an electromagnetic drive force is generated by the second electromagnetic drive assembly 2-845, which moves the carrier 2-830 and the optical element 2-900 along the first optical axis 2-O1 (X-axis) relative to the base 2-820 to perform the autofocus (AF) function. The carrier 2-830 is movably suspended between the frame 2-850 and the base 2-820 by the electromagnetic driving forces of the first electromagnetic driving assembly 2-840 and the second electromagnetic driving assembly 2-845, and the forces of the first elastic member 2-860 and the second elastic member 2-861. Furthermore, a magnetically conductive plate 2-P is installed on the second magnetic member 2-846 to concentrate the magnetic field of the second magnetic member 2-846, thereby improving the effectiveness of the second electromagnetic driving assembly 2-845. In some embodiments, the magnetically conductive plate 2-P is formed of metal or another material with sufficient magnetic permeability.

[0070] The sensing assembly 2-880 includes a sensor 2-881, a reference element 2-882, and an integrated circuit (IC) component 2-883. In this embodiment, the sensor 2-881 and the integrated circuit component 2-883 are mounted on the base 2-820, and the reference element 2-882 is mounted in the carrier 2-830. Multiple reference elements 2-882 are mounted. For example, the reference element 2-882 is a magnetic member, and the sensor 2-881 detects changes in the magnetic field of the reference element 2-882, and the position of the carrier 2-830 (optical element 2-900) is determined by the integrated circuit component 2-883. In some embodiments, one of the sensor 2-881 and the reference element 2-882 is mounted on the fixed portion 2-F, and the other of the sensor 2-881 and the reference element 2-882 is mounted on the movable portion 2-M.

[0071] Figure 13 is a cross-sectional view taken along line 2-A-2-A' in Figure 11. As shown in Figure 13, optical element 2-900 has an incident end 2-I and an exit end 2-O. In this embodiment, light rays enter optical element 2-900 from incident end 2-I along a first optical axis 2-O1 and exit optical element 2-900 from exit end 2-O. In this embodiment, first side 2-812 faces exit end 2-O of optical element 2-900, and second side 2-813 faces incident end 2-I of optical element 2-900.

[0072] Because the reflecting member 2-890 is further installed in the housing 2-810, the optical element 2-900 is not located at the center of the optical element driving mechanism 2-801. In this embodiment, the reflecting member 2-890 is closer to the second side 2-813 than the optical element 2-900, and the optical element 2-900 is closer to the first side 2-812 than the reflecting member 2-890. In other words, the shortest distance between the reflecting member 2-890 and the first side 2-812 (first distance 2-W1) is longer than the shortest distance between the reflecting member 2-890 and the second side 2-813 (second distance 2-W2). The shortest distance between the optical element 2-900 and the first side 2-812 (third distance 2-W3) is shorter than the shortest distance between the optical element 2-900 and the second side 2-813 (fourth distance 2-W4). In this embodiment, the frame 2-850 is installed between the carrier 2-830 and the housing 2-810, and when viewed in a direction parallel to the first optical axis 2-O1 (X axis), the frame 2-850 and the carrier 2-830 at least partially overlap.

[0073] FIG. 14 is a three-dimensional view of the optical element driving mechanism 2-801 shown in FIG. 11, viewed from another direction. As shown in FIG. 14, the housing further has a second side surface 2-813 and a third side surface 2-814. In this embodiment, the second side surface 2-813 extends from the edge of the top surface 2-811 along a direction perpendicular to the first optical axis 2-O1 (Z-axis). In some embodiments, the second side surface 2-813 extends from the edge of the top surface 2-811 along a direction not parallel to the first optical axis 2-O1. The housing 2-810 has a second opening 2-816 located on the second side surface 2-813, and the first optical axis 2-O1 passes through the second opening 2-816. In other words, the first side surface 2-812 and the second side surface 2-813 are approximately parallel to each other.

[0074] The third side surface 2-814 extends from the edge of the top surface 2-811 along a direction (Z-axis) perpendicular to the first optical axis 2-O1, and is located between the first side surface 2-812 and the second side surface 2-813. In this embodiment, the third side surface 2-814 is perpendicular to the first side surface 2-812 and the second side surface 2-813. In some embodiments, the third side surface 2-814 is not parallel to the first side surface 2-812 or the second side surface 2-813. A plurality of holes 2-818 are disposed on the third side surface 2-814 and correspond to the reflective member 2-890. For example, an adhesive ( (not shown) is installed in the hole 2-818, so that the reflective member 2-890 The optical element is fixed in the driving mechanism 2-801.

[0075] In addition, a third opening 2-817 is formed on the top surface 2-811 and corresponds to the reflecting member 2-890, allowing light to enter the optical element 2-900 located inside the optical element driving mechanism 2-801. Because the reflecting member 2-890 is installed near the first side 2-812, the third opening 2-817 is closer to the second opening 2-816 than the first opening 2-815. In other words, the distance between the third opening 2-817 and the first opening 2-815 is greater than the distance between the third opening 2-817 and the second opening 2-816.

[0076] It should be noted that in this embodiment, the light beam does not actually pass through the second opening 2-816. However, during assembly of the optical element driving mechanism 2-801, the optical element 2-900 is first placed in the optical element driving mechanism 2-801 through the second opening 2-816, and the reflective member 2-890 is placed in the optical element driving mechanism 2-801. An optical calibration process is performed on the optical element 2-900 and the reflective member 2-890, thereby increasing the yield of the optical element driving mechanism 2-801. The above design simplifies the manufacturing process.

[0077] FIG. 15 is a three-dimensional view of the internal structure of the optical element driving mechanism 2-801 as viewed from the output end 2-O of the optical element 2-900. It should be understood that in order to clearly show the internal structure of the optical element driving mechanism 2-801, the housing 2-810 and the reflective member 2-890 are not illustrated in this embodiment. As shown in FIG. 15, the base 2-820 further includes a first barrier 2-821 and a second barrier 2-822, which protrude toward the top surface 2-811 of the housing 2-810, and the shortest distance between the first barrier 2-821 and the first side 2-812 is shorter than the shortest distance between the second barrier 2-822 and the first side 2-812. The installation of the first barrier 2-821 and the second barrier 2-822 prevents light reflected by the housing 2-810 and the circuit component 2-870 from entering the image sensor. It should be noted that although a first barrier 2-821 and a second barrier 2-822 are described, this is merely an example in this embodiment. Those skilled in the art can adjust the position and number of the barriers. In some embodiments, a laser engraving process is used to form a sawtooth structure or any other suitable irregular structure on the base 2-820 (e.g., the first barrier 2-821 and / or the second barrier 2-822), thereby reducing reflections within the optical element driving mechanism 2-801.

[0078] In addition, in this embodiment, when viewed in a direction (Z-axis) perpendicular to the first optical axis 2-O1, the first magnetic member 2-841 is partially exposed from the frame 2-850. In this embodiment, the first magnetic member 2-841 is a three-pole magnet, which simplifies the assembly process and increases assembly precision and pressing strength. However, the present invention is not limited thereto. In some other embodiments, each first magnetic member 2-841 may be a combination of three magnets. Furthermore, the optical element driving mechanism 2-801 further has a first bonding material and a second bonding material (not shown), where the first bonding material is bonded between the housing 2-810 and the frame 2-850, and the second bonding material is bonded between the first magnetic member 2-841 and the frame 2-850. In some embodiments, the housing 2-810 and the first magnetic member 2-841 are fixed to the frame 2-850 by different processes, so the first bonding material is different from the second bonding material. For example, the first bonding material is a light-curing adhesive, so that after the housing 2-810 and the frame 2-850 are fixed, the subsequent assembly process (e.g., the process of fixing the first magnetic member 2-841 and the frame 2-850) can be performed in a short time.

[0079] FIG. 16 is a three-dimensional view of the internal structure of the optical element driving mechanism 2-801, viewed from the incident end 2-I of the optical element 2-900. As shown in FIG. 16, the base further includes a stop 2-823 installed between the carrier 2-830 and the second side 2-813 (shown in FIG. 14). The installation of the stop 2-823 limits the range of movement of the carrier 2-830. As a result, collisions between the carrier 2-830 and the reflective member 2-890 are avoided, and the reflective member 2-890 and / or the optical element 2-900 are not damaged. In addition, a metal member 2-824 is fitted into the stop 2-823 to increase the structural strength of the stop 2-823. This prevents overlapping collisions between the stop 2-823 and the optical element 2-900, preventing damage.

[0080] FIG. 17 is a three-dimensional view of the internal structure of an optical element driving mechanism 2-801 according to one embodiment of the present invention. It should be noted that the frame 2-850, carrier 2-830, and optical element 2-900 are illustrated upside down to clearly show the structure of the frame 2-850 and carrier 2-830. That is, the top of FIG. 17 faces the base 2-820, and the bottom faces the top surface 2-811 of the housing 2-810. As shown in FIG. 17, the frame 2-850 has a first sawtooth surface 2-851 facing the base 2-820. In addition, the carrier 2-830 further has a protrusion 2-831 that protrudes from the optical element 2-900 and extends to the base 2-820. When viewed in a direction parallel to the first optical axis 2-O1 (X-axis), the protrusion 2-831 and the optical element 2-900 at least partially overlap. The protrusion 2-831 further has a second serrated surface 2-832 located facing the base 2-820.

[0081] The protrusion 2-831 reduces the possibility of light rays directly hitting the inner surface of the metal housing 2-810, thereby reducing light reflection. Furthermore, after the light rays hit the sawtooth surfaces, the first sawtooth surface 2-851 and the second sawtooth surface 2-832 are installed to weaken the intensity of the light reflection. Since the possibility and / or intensity of light reflection inside the optical element driving mechanism 2-801 is reduced, noise is less likely to enter the image sensor due to reflection. Therefore, image quality is not affected.

[0082] For example, the sawtooth structures on the first sawtooth surface 2-851 and / or the second sawtooth surface 2-832 are formed by a laser engraving process. In some embodiments, the size of the sawtooth structures on the Z axis is, but is not limited to, 0.1 mm to 0.4 mm. In addition, the sawtooth structures may be formed as regular or irregular structures as needed. It should be noted that, although both the first sawtooth surface 2-851 and the second sawtooth surface 2-832 are provided in this embodiment, this is merely an example. Those skilled in the art can determine whether to provide the first sawtooth surface 2-851 and / or the second sawtooth surface 2-832 or adjust the positions of the first sawtooth surface 2-851 and / or the second sawtooth surface 2-832.

[0083] The optical element driving mechanism 2-801 further includes an extinction sheet 2-E disposed between the carrier 2-830 and the optical element 2-900. More specifically, the extinction sheet 2-E is disposed in the gap between the carrier 2-830 and the optical element 2-900. In some embodiments, the extinction sheet 2-E is also disposed on the second sawtooth surface 2-832 or between the first barrier 2-821 and the second barrier 2-822, but is not limited thereto. The extinction sheet 2-E effectively reduces noise reflection and prevents noise from entering the image sensor. For example, the extinction sheet 2-E may be formed from resin or any other suitable material and have a porous structure. In some embodiments, the extinction sheet 2-E reduces the reflectance of light with wavelengths of 250 to 2500 nm to 1.6% or less. In some embodiments, the thickness of the extinction sheet 2-E is 0.1 mm to 0.5 mm.

[0084] In addition, the optical element 2-900 further includes a first section 2-901 and a second section 2-902 (shown in FIG. 18), with the first section 2-901 adjacent to the incident end 2-I of the optical element 2-900. The first section 2-901 and the second section 2-902 are arranged along the first optical axis 2-O1, with the first section 2-901 being closer to the second side surface 2-813 than the second section 2-902. In other words, the shortest distance between the first section 2-901 and the second side surface 2-813 is shorter than the shortest distance between the second section 2-902 and the second side surface 2-813. In the direction perpendicular to the first optical axis 2-O1 (the Y-axis), the maximum dimension of the first section 2-901 is greater than the maximum dimension of the second section 2-902. That is, the width of the first section 2-901 is greater than the width of the second section 2-902 along the Y-axis. Because the size of the first section 2-901 is large, the carrier 2-830 covers the second section 2-902, exposing the first section 2-901 of the optical element 2-900.

[0085] FIG. 18 is a top view of the base 2-820, circuit component 2-870, second electromagnetic drive assembly 2-845, sensing assembly 2-880, and optical element 2-900, and FIG. 19 is a side view of the structure of FIG. 18 when viewed from the incident end 2-I. As shown in FIGS. 18 and 19, when viewed in a direction perpendicular to the first optical axis 2-O1 (Z axis), the integrated circuit component 2-883 of the sensing assembly 2-880 and the optical element 2-900 partially overlap. In this embodiment, the second magnetic member 2-846 is a three-pole magnet. In some other embodiments, each second magnetic member 2-846 may be a combination of three magnets.

[0086] As described above, embodiments of the present invention provide an optical element driving mechanism having a reflective member installed in a housing. By disposing the reflective member in the housing, the reflective member can be effectively protected and prevented from being damaged. In addition, embodiments of the present invention provide various structures to prevent reflections, such as a sawtooth surface, a barrier, and / or an extinction plate, thereby preventing noise from entering the image sensor due to reflections and affecting image quality.

[0087] Third embodiment

[0088] 20 is a three-dimensional view of an optical element driving mechanism 3-1001 according to one embodiment of the present invention. It should be noted that in this embodiment, the optical element driving mechanism 3-1001 can be installed in, for example, an electronic device having a camera function to drive an optical element (not shown) and perform autofocus (AF) and / or optical image stabilization (OIS) functions.

[0089] As shown in FIG. 20, the optical element driving mechanism 3-1001 has a central axis 3-C that is approximately parallel to the Z axis. The optical element has an optical axis 3-O that is approximately parallel to the X axis. In other words, in this embodiment, the central axis 3-C is approximately perpendicular to the optical axis 3-O. The optical element driving mechanism 3-1001 has a housing 3-1010 having a top surface 3-1011, a first side surface 3-1012, and a second side surface 3-1013 (shown in FIG. 22) opposite the first side surface 3-1012. The top surface 3-1011 extends in a direction parallel to the optical axis 3-O (i.e., the XY plane). The first side surface 3-1012 and the second side surface 3-1013 extend from the edge of the top surface 3-1011 in a direction perpendicular to the optical axis 3-O (the Z axis). In other words, in this embodiment, the first side 3-1012 and the second side 3-1013 are approximately parallel to each other. In some embodiments, the first side 3-1012 and the second side 3-1013 extend from the edge of the top surface 3-1011 in a direction that is not parallel to the optical axis 3-O. In addition, the housing 3-1010 has a rectangular first opening 3-1015 located on the first side 3-1012, and the optical axis 3-O passes through the first opening 3-1015. The light passes through the optical element located in the optical element driving mechanism 3-1001. After passing through the optical element, the light reaches an image sensor (not shown) located outside the optical element driving mechanism 3-1001, thereby generating an image on the electronic device.

[0090] Figure 21 is an exploded view of the optical element driving mechanism 3-1001 shown in Figure 20. In this embodiment, the optical element driving mechanism 3-1001 has a substantially rectangular structure. The optical element driving mechanism 3-1001 mainly includes a fixed part 3-F, a movable part 3-M, a plurality of first elastic members 3-1060, a plurality of second elastic members 3-1061, a first electromagnetic driving assembly 3-1040, and a second electromagnetic driving assembly 3-1045. The fixed part 3-F includes a housing 3-1010, a base 3-1020, a frame 3-1050, and a circuit component 3-1070.

[0091] The housing 3-1010 is installed on the base 3-1020 to protect the elements installed in the optical element driving mechanism 3-1001. In some embodiments, the housing 3-1010 is formed from metal or another material with sufficient strength to achieve a desirable protective effect. A frame 3-1050 is installed and fixed in the housing 3-1010. Circuit components 3-1070 are installed on the base 3-1020 to transmit electrical signals and perform autofocus (AF) and / or optical image stabilization (OIS) functions. For example, the optical element driving mechanism 3-1001 controls the position of the optical element base based on the electrical signals to generate an image. In this embodiment, the metal member 3-1021 is installed in the base by insert molding, thereby increasing the structural strength of the base 3-1020.

[0092] The movable part 3-M is movable relative to the fixed part 3-F. The movable part 3-M mainly has a carrier 3-1030 that carries an optical element. As shown in FIG. 21, the carrier 3-1030 is movably connected to the housing 3-1010 and the base 3-1020. A first elastic member 3-1060 is installed on the carrier 3-1030. The second elastic member 3-1061 extends in the vertical direction (Z axis) and is connected to the first elastic member 3-1060 and the base 3-1020. As a result, the carrier 3-1030 is connected to the base 3-1020 by the first elastic member 3-1060 and the second elastic member 3-1061. For example, the first elastic member 3-1060 and the second elastic member 3-1061 are formed of metal or another suitable elastic material.

[0093] The first electromagnetic drive assembly 3-1040 has a first magnetic member 3-1041 and a first drive coil 3-1042. The first magnetic member 3-1041 is mounted on the frame 3-1050, and the corresponding first drive coil 3-1042 is mounted on the carrier 3-1030. When current is supplied to the first drive coil 3-1042, an electromagnetic drive force is generated by the first drive coil 3-1042 and the first magnetic member 3-1041 (i.e., the first electromagnetic drive assembly 3-1040), which moves the carrier 3-1030 and the optical element along the horizontal direction (XY plane) to the base 3-1020, thereby performing autofocus (AF) and / or optical image stabilization (OIS) functions.

[0094] In addition, the second electromagnetic driving assembly 3-1045 has a second magnetic member 3-1046 and a second driving coil 3-1047. The second magnetic member 3-1046 is installed on the carrier 3-1030, and the corresponding second driving coil 3-1047 is installed on the base 3-1020. For example, the second driving coil 3-1047 is a flat plate coil, which reduces the difficulty and time required for assembly. When current is supplied to the second driving coil 3-1047, an electromagnetic driving force is generated by the second electromagnetic driving assembly 3-1045, which moves the carrier 3-1030 and the optical element along the optical axis 3-O (X-axis) relative to the base 3-1020 to perform the autofocus (AF) function. The carrier 3-1030 is movably suspended between the frame 3-1050 and the base 3-1020 by the electromagnetic driving forces of the first electromagnetic driving assembly 3-1040 and the second electromagnetic driving assembly 3-1045, and the acting forces of the first elastic member 3-1060 and the second elastic member 3-1061. Furthermore, a magnetically conductive plate 3-P is installed on the second magnetic member 3-1046 to concentrate the magnetic field of the second magnetic member 3-1046 and improve the efficiency of the second electromagnetic driving assembly 3-1045. In some embodiments, the magnetically conductive plate 3-P is formed of metal or another material with sufficient magnetic permeability.

[0095] The sensing assembly 3-1080 includes a sensor 3-1081, a reference element 3-1082, and an integrated circuit (IC) component 3-1083. In this embodiment, the sensor 3-1081 and the integrated circuit component 3-1083 are mounted on the circuit component 3-1070, and the reference element 3-1082 is mounted in the carrier 3-1030. Multiple reference elements 3-1082 are mounted. For example, the reference element 3-1082 is a magnetic member, and the sensor 3-1081 detects changes in the magnetic field of the reference element 3-1082, and the position of the carrier 3-1030 (and the optical element) is determined by the integrated circuit component 3-1083. In addition, the integrated circuit component 3-1083 also detects relative movement between the carrier 3-1030 and the fixed part 3-F. The integrated circuit component 3-1083 and the sensor 3-1081 are mounted to detect different movement directions of the carrier 3-1030. In some embodiments, one of the sensor 3-1081 and the reference element 3-1082 is installed on the fixed part 3-F, and the other of the sensor 3-1081 and the reference element 3-1082 is installed on the movable part 3-M.

[0096] Figure 22 is a cross-sectional view taken along line 3-B-3-B in Figure 20. As shown in Figure 22, the housing 3-1010 has a second opening 3-1016, and the optical axis 3-O passes through the second opening 3-1016. In this embodiment, the optical element driving mechanism 3-1001 has an input end and an output end, with the input end corresponding to the second opening 3-1016 and the output end corresponding to the first opening 3-1015. In this embodiment, light rays enter the optical element from the input end (i.e., the second opening 3-1016) and leave the optical element from the output end (i.e., the first opening 3-1015) along the optical axis 3-O. In this embodiment, the frame 3-1050 is disposed between the carrier 3-1030 and the housing 3-1010. When viewed in a direction parallel to the optical axis 3-O (the X axis), the frame 3-1050 and the carrier 3-1030 at least partially overlap.

[0097] In this embodiment, the optical element driving mechanism 3-1001 has a light-shielding sheet 3-1090 positioned between the carrier 3-1030 and the top surface 3-1011. The sheet 3-1090 extends toward the first side 3-1012 in a direction approximately parallel to the optical axis 3-O. When viewed in a direction parallel to the optical axis 3-O (X-axis), the sheet 3-1090 is located on the long side 3-1017 (shown in FIG. 23) of the first opening 3-1015. In other words, the sheet 3-1090 is located between the optical axis 3-O and the top surface 3-1011. In some embodiments, the carrier 3-1030 has a protrusion (not shown) extending toward the first side 3-1012 in a direction approximately parallel to the optical axis 3-O. Similarly, when viewed in a direction parallel to the optical axis 3-O (X-axis), the protrusion is located on the long side 3-1017 of the first opening 3-1015 and between the optical axis 3-O and the top surface 3-1011.

[0098] Figure 23 is an enlarged three-dimensional view of the optical element driving mechanism 3-1001 shown in Figure 20, observed from the output end. As shown in Figure 23, the base 3-1020 further has a barrier 3-1022 protruding from the top surface 3-1011. When viewed in a direction parallel to the optical axis 3-O (X axis), the barrier 3-1022 and the long side 3-1017 of the first opening 3-1015 at least partially overlap, and a gap is formed between the barrier 3-1022 and the short side 3-1018 of the first opening 3-1015. In other words, when viewed in the same direction, the barrier 3-1022 and the short side 3-1018 of the first opening 3-1015 do not overlap. In addition, the frame 3-1050 has a light-shielding structure 3-1051 protruding toward the base 3-1020. When viewed in a direction parallel to the optical axis 3-O (X-axis), the long side 3-1017 of the light-shielding structure 3-1051 and the first opening 3-1015 also at least partially overlap. Similarly, a gap is formed between the light-shielding structure 3-1051 and the short side 3-1018 of the first opening 3-1015. In other words, when viewed in the same direction, the light-shielding structure 3-1051 and the short side 3-1018 of the first opening 3-1015 do not overlap.

[0099] In some embodiments, sawtooth structures 3-1023, 3-1052 are formed on the barrier 3-1022 and / or the light-shielding structure 3-1051 by a laser engraving process. In some other embodiments, any other suitable regular or irregular structure is formed on the barrier 3-1022 and / or the light-shielding structure 3-1051 to reduce the likelihood that noise reflected by the optical element driving mechanism 3-1001 will enter the image sensor, thereby improving image quality. It should be noted that although both the barrier 3-1022 and the light-shielding structure 3-1051 are provided in this embodiment, this is merely an example. Those skilled in the art can determine whether to provide the barrier 3-1022 and / or the light-shielding structure 3-1051 or adjust the positions of the barrier 3-1022 and / or the light-shielding structure 3-1051 as needed.

[0100] FIG. 24 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. In this embodiment, the sawtooth structure 3-1023 has multiple tapered structures and multiple vertices 3-1024. The sawtooth structure 3-1052 has multiple vertices 3-1053. As shown in FIG. 24, when viewed in a direction parallel to the optical axis 3-O (X-axis), the vertices 3-1024 and 3-1053 are exposed through the first opening 3-1015. In some embodiments, the distance between the long side 3-1017 of the first opening 3-1015 and the vertices 3-1024 and 3-1053 is 0.25 mm or more, which effectively blocks noise and prevents it from entering the image sensor.

[0101] 25 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. As shown in FIG. 25, when viewed in a direction parallel to the optical axis 3-O (X-axis), the vertices 3-1024 and 3-1053 are not exposed from the first opening 3-1015. That is, the vertices 3-1024 and 3-1053 overlap with the housing 3-1010. In some embodiments, the distance between the long side 3-1017 of the first opening 3-1015 and the vertices 3-1024 and 3-1053 is 0.1 mm or more, which effectively reduces noise entering the image sensor.

[0102] FIG. 26 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. In this embodiment, the barrier 3-1022 has an upper surface 3-1025 and a cutting surface 3-1026 intersecting the upper surface 3-1025. The tapered structure is formed by the upper surface 3-1025 and the cutting surface 3-1026. The upper surface 3-1025 slopes upward, i.e., faces the carrier 3-1030 and the top surface 3-1011. The cutting surface 3-1026 is approximately perpendicular to the optical axis 3-0 and faces the first side surface 3-1012. In some embodiments, the fillet between the upper surface 3-1025 and the cutting surface 3-1026 is no greater than 0.05 mm. Similarly, the light-shielding structure 3-1051 has a lower surface (not shown) and a cutting surface intersecting the lower surface. In some embodiments, the fillet between the lower surface and the cutting surface is no greater than 0.05 mm.

[0103] In addition, a rough surface is provided on the barrier 3-1022. For example, if the surface roughness of a surface is greater than 16, the surface is called a rough surface. The upper surface 3-1025 is provided as a rough surface. In some embodiments, the surface facing the top surface 3-1011 of the base 3-1020 is formed as a rough surface. The provision of a rough surface reduces the intensity of the reflected light after the light beam is irradiated onto the rough surface. The possibility and / or intensity of the light beam is reduced within the optical element driving mechanism 3-1001, thereby preventing noise from entering the image sensor due to reflection and thereby affecting image quality.

[0104] Figure 27 is a cross-sectional view of an optical element driving mechanism 3-1002 according to another embodiment of the present invention. It should be noted that the optical element driving mechanism 3-1002 in this embodiment has the same or similar parts as the optical element driving mechanism 3-1001 shown in Figures 20 to 23. These parts are indicated by the same reference numerals, and for the sake of brevity, the description will not be repeated here. The difference between the optical element driving mechanism 3-1002 in this embodiment of the present invention and the optical element driving mechanism 3-1001 in Figures 20 to 23 is that in the optical element driving mechanism 3-1002, a groove 3-1027 is formed between the barrier 3-1022 and the housing 3-1010. The groove 3-1027 is installed facing the top surface 3-1011, and a light-blocking member 3-1091 is installed in the groove 3-1027. As shown in FIG. 27, the shortest distance between the light blocking member 3-1091 and the top surface 3-1011 is shorter than the shortest distance between the barrier 3-1022 and the top surface 3-1011.

[0105] Figures 28 and 29 are enlarged three-dimensional views of optical element driving mechanisms according to some other embodiments of the present invention. As shown in Figure 28, a light-blocking member 3-1092 is installed in the housing 3-1010 and is located between the housing 3-1010 and the barrier 3-1022, and / or between the housing 3-1010 and the frame 3-1050. For example, a groove facing the base 3-1020 is formed between the light-blocking structure 3-1051 and the housing 3-1010, and the light-blocking member 3-1092 is located in the groove. Similarly, the shortest distance between the light-blocking member 3-1092 and the base 3-1020 is shorter than the shortest distance between the light-blocking structure 3-1051 and the base 3-1020.

[0106] In this embodiment, when viewed in a direction parallel to the optical axis 3-O (X-axis), the light-blocking member 3-1092 and the long side 3-1017 of the first opening 3-1015 at least partially overlap. In the embodiment shown in FIG. 29, the light-blocking member 3-1092 is installed outside the housing 3-1010 and is positioned around the first opening 3-1015. Similarly, when viewed in a direction parallel to the optical axis 3-O (X-axis), the light-blocking member 3-1092 and the long side 3-1017 of the first opening 3-1015 at least partially overlap.

[0107] For example, the sheet 3-1090 and the light blocking members 3-1091 and 3-1092 may be formed of resin, fiber, or any other suitable material (e.g., SOMA light blocking material) and have a porous structure. In some embodiments, the sheet 3-1090 and the light blocking members 3-1091 and 3-1092 are glass with a surface treatment (e.g., blackening). In some embodiments, the sheet 3-1090 and the light blocking members 3-1091 and 3-1092 reduce the reflectance of light with wavelengths between 250 nm and 2500 nm to 1.6% or less. In some embodiments, the thickness of the sheet 3-1090 and the light blocking members 3-1091 and 3-1092 is in the range of approximately 0.1 mm to 0.5 mm. The installation of the sheet 3-1090 and the light blocking members 3-1091 and 3-1092 effectively reduces noise reflection and prevents noise from entering the image sensor.

[0108] As described above, embodiments of the present invention provide a light-blocking structure and / or an optical element driving mechanism having a light-blocking member. Embodiments of the present invention provide various structures such as a barrier or a light-blocking sheet to prevent reflections and noise from entering the image sensor and affecting image quality.

[0109] Fourth embodiment

[0110]

[00110] Figure 30 illustrates an electronic device 4-1401 equipped with an optical system 4-1402 according to some embodiments of the present invention. In Figure 30, the electronic device is a smartphone, but the present disclosure is not limited thereto. The optical system 4-1402 includes an optical element driving module 4-1410 and a periscope optical module 4-1420.

[0111] Figure 31 is a cross-sectional view taken along line 4-A-4-A in Figure 30. In Figure 31, the direction of travel of light 4-L entering the electronic device 4-1401 is indicated by an arrow. After passing through the optical element driving module 4-1410 and the periscope optical module 4-1420, the light 4-L is imaged by two light-detecting elements 4-1430 (e.g., charge-coupled detectors, CCDs). The image is then sent to a processor (not shown) for processing.

[0112] The optical element driving module 4-1410 has one or more optical elements 4-1411. A driving mechanism is included in the optical element driving module 4-1410 to move the optical elements 4-1411. The arrangement direction of the optical elements 4-1411 is parallel to the thickness direction of the electronic device 4-1401. If the number of optical elements 4-1411 increases, the thickness of the electronic device 4-1401 increases.

[0113] The periscope optical module 4-1420 includes one or more optical elements 4-1421 and a reflective element 4-1422. By installing the reflective element 4-1422, the direction of the light ray 4-L is changed, and the orientation of the optical element 4-1421 is approximately perpendicular to the thickness direction of the electronic device 4-1401.

[0114] When consumers purchase electronic devices, both appearance and image function are important factors. Users tend to choose electronic devices that are thin and have good image capture capabilities. To improve the image quality, the number of optical elements increases. To achieve the installation of more optical elements, periscope optical modules have begun to develop smoothly.

[0115] As described above, the arrangement direction of the optical element 4-1421 in the periscope optical module 4-1420 is different from the arrangement direction of the optical element 4-1411 in the optical element driving module 4-1410. In the periscope optical module 4-1420, the arrangement direction of the optical element 4-1421 is approximately perpendicular to the thickness direction of the electronic device 4-1401, so that the electronic device 4-1401 can be equipped with multiple optical elements 4-1421 without affecting the thickness of the electronic device 4-1401.

[0116] In summary, as shown in Figure 31, when the optical elements 4-1411 of the optical element driving module 4-1410 have the same quantity and size as the optical elements 4-1421 of the periscope optical module 4-1420, the thickness of the periscope optical module 4-1420 is thinner than the thickness of the optical element driving module 4-1410. Therefore, by selecting the periscope optical module 4-1420, an increase in the thickness of the electronic device 4-1401 can be avoided. In other words, when comparing two electronic devices having the same thickness but installing different optical modules, the one installing the periscope optical module 4-1420 can install more optical elements than the one installing the optical element driving module 4-1410.

[0117] However, even if a long focal length or large size optical element is installed in the periscope optical module 4-1420, the thickness of the electronic device 4-1401 still increases. Therefore, a periscope optical module incorporating a long focal length or large size optical element is provided in the present disclosure.

[0118] 32 is a three-dimensional view of a periscope optical module 4-1450 according to some embodiments of the present invention. The periscope optical module 4-1450 includes a case 4-1451, a first optical element 4-1460, a holder 4-1462, a second optical element 4-1470, and a third optical element 4-1480. When a light ray 4-L enters the periscope optical module 4-1450, the light ray 4-L passes through the first optical element 4-1460, the second optical element 4-1470, and the third optical element 4-1480 in order.

[0119] The first optical element 4-1460 is an optical element, such as a long-focus lens, having a longer focal length or a larger size than the third optical element 4-1480. The first optical element 4-1460 is received in a holder 4-1462.

[0120] The second optical element 4-1470 and the third optical element 4-1480 are protected by a case 4-1451. The shape and size of the case 4-1451 can be changed as desired. The second optical element 4-1470 has similar features to the reflective element 4-1422 in Figure 31. The second optical element 4-1470 may be a mirror, a reflective prism, or a beam splitter. The second optical element 4-1470 is positioned below the first optical element 4-1460 so that the second optical element 4-1470 can receive as much of the light ray 4-L passing through the first optical element 4-1460 as possible. Furthermore, the position of the second optical element 4-1470 corresponds to the position of the first optical element 4-1460. After the light ray 4-L passes through the first optical element 4-1460, the direction of travel of the light ray 4-L is adjusted by rotating or moving the second optical element 4-1470.

[0121] Similarly, the third optical element 4-1480 is adapted to receive as much of the light ray 4-L as possible. Therefore, the third optical element 4-1480 is located on one side of the second optical element 4-1470, and the position of the third optical element 4-1480 corresponds to the position of the second optical element 4-1470. If necessary, two or more third optical elements 4-1480 may be installed. The third optical element 4-1480 also corresponds to a light beam detecting element (not shown) located outside the periscope optical module 4-1450, and the light beam 4-L is imaged at the light beam detecting element.

[0122] The first optical element 4-1460 and the third optical element 4-1480 are lenses or the like, and are formed of glass, resin, or the like. Optical elements formed of glass have better optical performance than optical elements formed of resin, but are heavier. Since the space for installing the third optical element 4-1480 is more limited than the space for installing the first optical element 4-1460, a heavy third optical element 4-1480 is usually not required. Therefore, the first optical element 4-1460 is formed of glass, and the third optical element 4-1480 is formed of resin, but any appropriate material can be selected according to actual needs.

[0123] Furthermore, the first optical element 4-1460 is a convex lens (e.g., a concave-convex lens), and the focal length of the first optical element 4-1460 is positive, so that the light rays 4-L passing through the first optical element 4-1460 converge. On the other hand, the third optical element 4-1480 is a concave lens (e.g., a concave-convex lens, a plano-concave lens, or a biconcave lens), and the focal length of the third optical element 4-1480 is negative, so that the light rays 4-L passing through the third optical element 4-1480 diverge. Alternatively, the focal length of the first optical element 4-1460 is negative, and the focal length of the third optical element 4-1480 is positive.

[0124] In some embodiments, the periscope optical module 4-1450 further includes an aperture (not shown). The aperture provides an adjustable opening to control the amount of light 4-L and affect the depth of field (DOF) of the image. As the DOF decreases, only objects closer to the periscope optical module 4-1450 are sharp. The aperture is located between the first optical element 4-1460 and the second optical element 4-1470. Alternatively, the aperture is located between the second optical element 4-1470 and the third optical element 4-1480.

[0125] The first optical element 4-1460 has a first optical axis 4-1461, which is a virtual axis passing through the center of the first optical element 4-1460. The third optical element 4-1480 has a second optical axis 4-1481, which is a virtual axis passing through the center of the third optical element 4-1480. The first optical axis 4-1461 is not parallel to the second optical axis 4-1481. In this embodiment, due to the arrangement of the first optical element 4-1460 and the third optical element 4-1480, the first optical axis 4-1461 is approximately perpendicular to the second optical axis 4-1481. It should be noted that due to vibration or other causes, the first optical axis 4-1461 may not be perpendicular to the second optical axis 4-1481.

[0126] The holder 4-1462 is mounted on the second optical element 4-1470 so that the holder 4-1462 overlaps with the second optical element 4-1470 when viewed along the first optical axis 4-1461.

[0127] Figure 33 is a side view of the periscope optical module 4-1450 of Figure 32. As shown in Figure 33, the minimum dimension 4-S1 of the first optical element 4-1460 in a direction perpendicular to the first optical axis 4-1461 is larger than the maximum dimension 4-S3 of the third optical element 4-1480 in the direction of the first optical axis 4-1461.

[0128] With this arrangement, the thickness of the periscope optical module 4-1450 is not affected by the minimum dimension 4-S1 perpendicular to the first optical axis 4-1461 of the first optical element 4-1460. Therefore, the first optical element 4-1460 having a long focal length can be installed while also considering the compactness of the periscope optical module 4-1450. Furthermore, since the first optical element 4-1460 and the third optical element 4-1480 have different focal lengths and different sizes, image quality is improved.

[0129] To clarify, the "size" of an optical element actually refers to the "effective optical area" of the optical element. When an image is formed, the image size is not proportional to the actual size of the optical element, but is proportional to the effective optical area. The "effective optical area" of an optical element is the area through which light rays actually pass and are imaged.

[0130] For example, the periphery of the first optical element 4-1460 is shielded by the holder 4-1462 to receive the first optical element 4-1460, so the effective optical area is not equal to the actual size of the first optical element 4-1460. Under such circumstances, the minimum dimension 4-S1 of the first optical element 4-1460 in a direction perpendicular to the first optical axis 4-1461 refers to the minimum dimension of the first optical element 4-1460 that is not shielded by the holder 4-1462, and not the actual dimension of the first optical element 4-1460 in a direction perpendicular to the first optical axis 4-1461.

[0131] Therefore, the minimum dimension 4-S1 of the first optical element 4-1460 being larger than the maximum dimension 4-S3 of the third optical element 4-1480 means that the effective optical area of the first optical element 4-1460 is larger than the effective optical area of the third optical element 4-1480.

[0132] Figure 34 is a top view of the periscope optical module 4-1450 of Figure 32. As shown in Figure 34, the minimum dimension 4-S1 of the first optical element 4-1460 in a direction perpendicular to the first optical axis 4-1461 is larger than the maximum dimension 4-S2 of the second optical element 4-1480 in the direction of the second optical axis 4-1481. However, the reflecting surface 4-1475 of the second optical element 4-1470 is greater than or equal to the cross-sectional area of the light ray 4-L after passing through the first optical element 4-1460, thereby preventing part of the light ray 4-L from being unreflected.

[0133] It should be noted that in some embodiments, when the light ray 4-L passes through the first optical element 4-1460, the second optical element 4-1470, and the third optical element 4-1480, the cross-sectional area of the light ray 4-L is reduced due to inherent properties of the light ray 4-L, such as refraction or reflection. For example, when the light ray 4-L passes through the first optical element 4-1460, the second optical element 4-1470, and the third optical element 4-1480, the profile of the light ray 4-L is conical, and the cross-sectional area of the light ray 4-L is reduced.

[0134] Furthermore, the maximum dimension 4-S2 of the second optical element 4-1470 in the direction of the second optical axis 4-1481 is designed to be larger than the maximum dimension 4-S3 of the third optical element 4-1480 in the direction of the first optical axis 4-1461. Such a design reduces the dimension of the periscope optical module 4-1450 in the direction of the first optical axis 4-1461, i.e., reduces the thickness of the periscope optical module 4-1450.

[0135] FIG. 35 is a diagram illustrating a first optical element 4-1460 according to some embodiments of the present invention. As shown in FIG. 35, to reduce manufacturing costs, the weight of the periscope optical module 4-1450 may be reduced or the thickness of the periscope optical module 4-1450 may be reduced, and the first optical element 4-1460 may have two cutouts 4-1465 formed on opposite sides of the first optical element 4-1460. The cutouts 4-1465 may be formed by a cutting process or the like. It should be noted that the third optical element 4-1480 may also have a similar shape.

[0136] It should be noted that if the shape of the light ray detecting element is different from the shape of the light ray 4-L or due to other reasons, part of the light ray 4-L may exceed the light ray detecting element and not be imaged. Therefore, the image quality is not affected by the first optical element 4-1460 having the cutout 4-1465.

[0137] Figure 36 is a three-dimensional view of a periscope optical module 4-1450 having a first drive assembly 4-1490. The first optical element 4-1460 is driven by the first drive assembly 4-1490 to move relative to the second optical element 4-1470. Next, we will explain in detail how the first drive assembly 4-1490 operates. However, the first drive assembly 4-1490 may be omitted, and the holder 4-1462 may be fixed by adhesive or the like.

[0138] The first drive assembly 4-1490 has two drive members 4-1491 connected to and supporting the holder 4-1462. Movement of the drive members 4-1491 drives the holder 4-1462, allowing the first optical element 4-1460 to move in different directions (e.g., the X-axis, Y-axis, or Z-axis in the drawing) to achieve autofocus (AF) and optical image stabilization (OIS), respectively. For example, the two drive members 4-1491 move the same distance in the direction of the first optical axis 4-1461, moving the first optical element 4-1460 along the first optical axis 4-1461 to achieve the AF function. In this embodiment, two drive members 4-1491 are used to stabilize and balance the first optical element 4-1460 (which is heavy) with a large effective optical range, but the number of drive members 4-1491 can vary.

[0139] When viewed along a direction perpendicular to the first optical axis 4-1461, the second optical element 4-1470 is located between the two drive members 4-1491. Furthermore, when viewed along a direction perpendicular to the first optical axis 4-1461, the drive member 4-1491 of the first drive assembly 4-1490 partially overlaps with the second optical element 4-1470 but does not overlap with the first optical element 4-1460.

[0140] In addition to the method of driving the first optical element 4-1460 by the driving member 4-1491, the first driving assembly 4-1490 may include an electromagnetic element, a bias element formed from a shape memory alloy (SMA), or a smooth impact driving mechanism (SIDM), etc.

[0141] If the first drive assembly 4-1490 is electromagnetic, the first drive assembly 4-1490 has elements such as a coil, a magnetic element, etc. When a current is applied to the coil, electromagnetic induction occurs between the coil and the magnetic element, generating an electromagnetic force to move the first optical element 4-1460.

[0142] If the first drive assembly 4-1490 has a bias element formed of SMA, the bias element is connected to the holder 4-1462. Because SMA material deforms with temperature changes, a drive signal (e.g., current or voltage) is supplied to the bias element to control the temperature and change the length of the bias element, thereby moving the first optical element 4-1460.

[0143] When the first drive assembly 4-1490 is a SIDM, the first drive assembly 4-1490 includes a piezoelectric assembly, a moving object, etc. The volume change of the piezoelectric assembly and the inertial and frictional forces of the moving object move the first optical element 4-1460.

[0144] Furthermore, the arrangement of the first drive assembly 4-1490 is not limited to the above embodiment. Figures 37 to 42 show different arrangements of the first drive assembly 4-1490 according to some embodiments of the present invention. It should be noted that Figures 37 to 42 are shown more simply. The positions of the first optical element 4-1460, the second optical element 4-1470, and the third optical element 4-1480 are relatively the same, and the elements have the same or similar structures as those in the above embodiments.

[0145] 37, when the first drive assembly 4-1490 is installed on the third optical element 4-1480 and viewed along the direction of the first optical axis 4-1461, the first drive assembly 4-1490 overlaps with the third optical element 4-1480. Also, the first drive assembly 4-1490 does not overlap with the third optical element 4-1480.

[0146] As shown in Figure 38, the first drive assembly 4-1490 is installed adjacent to the second optical element 4-1470, so that when viewed along a direction perpendicular to the first optical axis 4-1461, the second optical element 4-1470 is located between the third optical element 4-1480 and the first drive assembly 4-1490. Also, when viewed along the direction of the second optical axis 4-1481, the first drive assembly 4-1490 does not overlap with the first optical element 4-1460.

[0147] 39, the first drive assembly 4-1490 is installed below the second optical element 4-1470, so that when viewed along the direction of the first optical axis 4-1461, the second optical element 4-1470 is located between the first optical element 4-1460 and the first drive assembly 4-1490. Also, when viewed along the direction of the second optical axis 4-1481, the first drive assembly 4-1490 does not overlap with the first optical element 4-1460 and the third optical element 4-1480.

[0148] 40, the first drive assembly 4-1490 is positioned adjacent to the third optical element 4-1480, and when viewed along a direction perpendicular to the first optical axis 4-1461, the third optical element 4-1480 is located between the second optical element 4-1470 and the first drive assembly 4-1490. Also, when viewed in the direction of the second optical axis 4-1481, the first drive assembly 4-1490 overlaps with the third optical element 4-1480.

[0149] As shown in Figure 41, the installation scheme of Figure 41 is similar to that of Figure 40. The difference is that the first drive assembly 4-1490 and the third optical element 4-1480 are spaced apart by a distance.

[0150] As shown in Figure 42, in this embodiment, an optical element driving module similar to the optical element driving module 4-1410 of Figure 31 is used to receive the first optical element 4-1460. Because the optical element driving module 4-1410 has a driving mechanism internal to it to drive the first optical element 4-1460, a first driving assembly 4-1490 to drive the first optical element 4-1460 is not required.

[0151] Figure 43 is a diagram showing the liquid lens drive and movement assembly 4-1500. In Figure 43, the first optical element 4-1460 is a liquid lens. A liquid lens is a lens whose medium is liquid. The liquid lens drive and movement assembly 4-1500 changes the focal length of the first optical element 4-1460 by rotating or compressing the first optical element 4-1460. Furthermore, a first drive assembly 4-1490 is used to drive the liquid lens drive and movement assembly 4-1500, which simultaneously moves the first optical element 4-1460 (in this embodiment, a liquid lens) and the liquid lens drive and movement assembly 4-1500 relative to the second optical element 4-1470.

[0152] Figure 44 shows the second drive assembly 4-1520 and the third drive assembly 4-1530. For clarity, some elements are omitted from Figure 44. In addition to the first drive assembly 4-1490, the periscope optical module 4-1450 includes a second drive assembly 4-1520 and / or a third drive assembly 4-1530. The second drive assembly 4-1520 rotates the second optical element 4-1470. The third drive assembly 4-1530 moves the third optical element 4-1480 relative to the second optical element 4-1470.

[0153] It should be noted that the terms "first" drive assembly 4-1490, "second" drive assembly 4-1520, and "third" drive assembly 4-1530 do not imply any ordering or necessity of the different drive assemblies. That is, the periscope optical module 4-1450 does not imply that the second drive assembly 4-1520 cannot be installed without the first drive assembly 4-1490, or that the third drive assembly 4-1530 cannot be installed without the second drive assembly 4-1520. Drive assemblies are installed or used as needed. In some embodiments, the periscope optical module 4-1450 has only one or two of the first drive assembly 4-1490, second drive assembly 4-1520, and third drive assembly 4-1530. For example, the periscope optical module 4-1450 has only the third drive assembly 4-1530 to move the third optical element 4-1480 relative to the second optical element 4-1470, and the first drive assembly 4-1490 and the second drive assembly 4-1520 are omitted.

[0154] As shown in FIG. 44, the periscope optical module 4-1450 has a base 4-1472, a circuit board 4-1473, and a mounting piece 4-1474. The base 4-1472 corresponds to the second optical element 4-1470. The circuit board 4-1473 is installed on the base 4-1472. The mounting piece 4-1474 mounts the second optical element 4-1470. In this embodiment, the second drive assembly 4-1520 is electromagnetic and has a coil 4-1521 and a magnetic element 4-1522. The coil 4-1521 is installed on the circuit board 4-1473, and the magnetic element 4-1522 is installed on the mounting piece 4-1474. However, the positions of the coil 4-1521 and the magnetic element 4-1522 are interchangeable. The electromagnetic force generated between the coil 4-1521 and the magnetic element 4-1522 moves or rotates the second optical element 4-1470, changing the direction of travel of the light ray 4-L. For example, the second optical element 4-1470 rotates in a direction perpendicular to the first optical axis 4-1461 and the second optical axis 4-1481.

[0155] It should be noted that with respect to the discussion of Figures 37 to 42, the first drive assembly 4-1490 has various installation methods. When the first drive assembly 4-1490 and the second drive assembly 4-1520 are both electromagnetic, the second drive assembly 4-1520 is not installed on one side of the base 4-1472 adjacent to the first drive assembly 4-1490 to avoid magnetic interference.

[0156] The third drive assembly 4-1530 has the same or similar arrangement as the first drive assembly 4-1490. As described above, in driving the third optical element 4-1480, the third drive assembly 4-1530 has an electromagnetic type, a bias element formed from an SMA, a SIDM, or the like.

[0157] In this embodiment, the third drive assembly 4-1530 has two coils 4-1531, two magnetic elements 4-1532, two coils 4-1533, and two magnetic elements 4-1534. The electromagnetic force generated between the coils 4-1531 and the magnetic elements 4-1532 moves the third optical element 4-1480 along the direction of the second optical axis 4-1481 to achieve the AF function. The electromagnetic force generated between the coils 4-1533 and the magnetic elements 4-1534 moves the third optical element 4-1480 along a direction not parallel to the second optical axis 4-1481 to achieve the OIS function.

[0158] Figures 45 and 46 are diagrams illustrating an optical system 4-1580 according to some embodiments of the present invention. The optical system 4-1580 is installed in an electronic device, such as the electronic device 4-1401 shown in Figure 30, and replaces the optical system 4-1402. The optical system 4-1580 includes a periscope optical module 4-1450 and an optical element driving module 4-1550. The optical element driving module 4-1550 is similar to the optical element driving module 4-1410 shown in Figure 30. The optical element driving module 4-1550 can be installed in different locations.

[0159] As shown in FIG. 45, the optical element driving module 4-1550 is installed adjacent to the second optical element 4-1470 of the periscope optical module 4-1450. As shown in FIG. 46, the optical element driving module 4-1550 is installed adjacent to the third optical element 4-1480 of the periscope optical module 4-1450. In FIGS. 45 and 46, the optical element driving module 4-1550 and the second optical element 4-1470 are arranged along a direction perpendicular to the first optical axis 4-1461 and parallel to the second optical axis 4-1481. The periscope optical module 4-1450 and the optical element driving module 4-1550 have multiple optical elements, which achieve purposes such as light detection, wide angle, and long focus when the smartphone 4-1580 is used for photography, thereby improving image quality.

[0160] An improved periscope optical module is provided. According to the present invention, an optical element with a large effective optical area is installed in an electronic device without increasing the thickness of the electronic device. Furthermore, a different assembly is used to drive the optical element to achieve displacement compensation, effectively increasing the correction efficiency. An additional optical element driving module can also be used together with the periscope optical module of the present disclosure to improve the image quality captured by the electronic device.

[0161] Fifth embodiment

[0162] 47 and 48, in one embodiment of the present invention, an optical element driving mechanism 5-10 is installed in an electronic device 5-20. The optical element driving mechanism 5-10 is installed to mount an optical element 5-30 and move the optical element 5-30 relative to an image sensor module 5-S in the electronic device 5-20 to achieve the purpose of focusing. For example, the electronic device 5-20 is a digital camera or smartphone with a photography or video recording function, and the optical element 5-30 is a prism or a mirror. During photography or video recording, a light ray 5-L enters the optical element driving mechanism 5-10 along an incident direction 5-D1, is reflected by the optical element 5-30, travels along an exit direction 5-D2, and reaches the image sensor module 5-S.

[0163] In this embodiment, the light ray 5-L is reflected by the optical element 5-30 and then reaches the image sensor module 5-S via the optical system 5-40. The optical system 5-40 may be adjusted or omitted as needed, and is not limited to the structure shown in the drawings. Note that in this embodiment, the light ray 5-L enters the optical element 5-30 from the first surface 5-31 and leaves the optical element 5-30 from the second surface 5-32. In some embodiments, the installation orientation of the optical element driving mechanism 5-10 is adjusted so that the light ray 5-L enters the optical element 5-30 from the second surface 5-32 and leaves the optical element 5-30 from the first surface 5-31. In other words, in some embodiments, the incident direction 5-D1 and the exit direction 5-D2 are interchangeable.

[0164] Figures 49 and 50 are diagrams showing the optical element driving mechanism 5-10 from different perspectives, and Figure 51 is an exploded view of the optical element driving mechanism 5-10. As shown in Figures 49 to 51, the optical element driving mechanism 5-10 mainly has a fixed part 5-100, a movable part 5-200, an elastic member 5-300, a drive assembly 5-400, at least one magnetic permeable member 5-500, and multiple damping members 5-600.

[0165] The fixing part 5-100 has a base 5-110 and a housing 5-120. The base 5-110 and the housing 5-120 are assembled using a snap connection or adhesive. Specifically, as shown in Figures 50 and 52, the housing 5-120 has a hole 5-121, and the base 5-110 has a base 5-111 and a side wall 5-112. The side wall 5-112 is connected to the base 5-111 and extends along the Z axis. A protrusion 5-113 and at least one glue reservoir 5-114 are formed on the side wall 5-112. At least one overflow groove 5-115 communicating with the glue reservoir is formed on the base 5-111, and the glue reservoir 5-114 has an inclined surface. In other words, the part of the glue tank 5-114 far from the base 5-111 is close to the movable part 5-200.

[0166] When a user wishes to join the base 5-110 and the housing 5-120, glue is applied into the glue reservoir 5-114 and the housing 5-120 is brought close to the base 5-111 along the -Z axis. Finally, the protrusion 5-113 passes through the hole 5-121 (shown in FIG. 50). The adhesive bond and the snap-fit between the protrusion 5-113 and the hole 5-121 tightly join the base 5-110 and the housing 5-120.

[0167] If there is excess glue, it slides along the inclined surface of the glue reservoir 5-114 into the overflow groove 5-115 during the joining process. As shown in Figure 50, when the base 5-110 and the housing 5-120 are joined, the glue reservoir 5-114 is installed between the base 5-110 and the housing 5-120, exposing the overflow groove 5-115. With the overflow groove 5-115 exposed, excess glue is discharged and does not remain in the optical element driving mechanism 5-10.

[0168] Furthermore, to allow the user to accurately assemble the base 5-110 and the housing 5-120, the base 5-110 has a positioning member 5-116 protruding from the side wall 5-112, and the housing 5-120 has a positioning slot 5-122 corresponding to the positioning member 5-116. When the base 5-110 is coupled with the housing 5-120, the positioning member 5-116 enters the positioning slot 5-122.

[0169] As shown in Figures 48 and 49, in this embodiment, the base 5-110 has a plurality of joint members 5-117 protruding from the sidewall 5-112 and facing the optical system 5-40. The surfaces of these joint members 5-117 facing the optical system 5-40 are coplanar, and the optical element driving mechanism 5-10 is mounted horizontally to the optical system 5-40.

[0170] As shown in Figures 51 and 53, the movable part 5-200 is an optical element holder, and the optical element 5-30 is installed on the surface 5-210 of the movable part 5-200. In this embodiment, at least one support part 5-211 protruding from the surface 5-210 is formed around the periphery of the surface 5-210, so that when the optical element 5-30 is installed on the movable part 5-200, a gap 5-G is formed between the optical element 5-30 and the surface 5-210 (shown in Figure 48). This increases the reflection efficiency and allows the installation angle of the optical element 5-30 to be adjusted.

[0171] The optical element 5-30 is fixed to the movable part 5-200 by an adhesive material. For example, a plurality of grooves 5-221 are formed on the inner wall surface of the side wall 5-220 of the movable part 5-200. When the optical element 5-30 is installed on the support part 5-211, the user can inject glue into the grooves 5-221, so that the optical element 5-30 is fixed to the movable part 5-200 from the side.

[0172] Referring to Figures 51 and 54, the elastic member 5-300 has at least one first connecting section 5-310, at least one second connecting section 5-320, at least one first curved section 5-330, at least one second curved section 5-340, and at least one axial section 5-350. The first connecting section 5-310 is fixed to the fixed part 5-100, and the second connecting section 5-320 is fixed to the movable part 5-200. The first curved section 5-330, the second curved section 5-340, and the axial section 5-350 are disposed between the first connecting section 5-310 and the second connecting section 5-320. The first curved section 5-330 connects the first connecting section 5-310 to the axial section 5-350, and the second curved section 5-340 connects the second connecting section 5-320 to the axial section 5-350. The movable part 5-200 is suspended above the fixed part 5-100 by an elastic member 5-300.

[0173] It should be noted that in this embodiment, the optical element driving mechanism 5-10 has a first side 5-11 and a second side 5-12, and the movable part 5-200 is installed between the first side 5-11 and the second side 5-12. The elastic member 5-300 has a plate structure and extends from the first side 5-11 to the second side 5-12. The extension direction of the elastic member 5-300 is perpendicular to the incident direction 5-D1 of the light ray 5-L. When viewed from the exit direction 5-D2, at least a portion of the first curved section 5-330 and the second curved section 5-340 overlap, thereby effectively dispersing stress when the movable part 5-200 rotates.

[0174] 48, 51, and 54, the drive assembly 5-400 includes at least one first electromagnetic drive member 5-410, at least one second electromagnetic drive member 5-420, a position sensor 5-430, and a plurality of wires 5-440. The first electromagnetic drive member 5-410 and the second electromagnetic drive member 5-420 are fixed to the fixed part 5-100 and the movable part 5-200, respectively, and the position of the first electromagnetic drive member 5-410 corresponds to the position of the second electromagnetic drive member 5-420. In this embodiment, the first electromagnetic drive member 5-410 is a coil, and the second electromagnetic drive member 5-420 is a magnet. When current flows through the first electromagnetic driving member 5-410, an electromagnetic action is generated between the first electromagnetic driving member 5-410 and the second electromagnetic driving member 5-420, and the movable part 5-200 and the optical element 5-30 mounted on the movable part 5-200 rotate relative to the fixed part 5-100 around the rotation axis 5-R.

[0175] According to the structure of the elastic member 5-300, the rotation axis 5-R passes through the shaft section 5-350 of the elastic member 5-300. It should be noted that in this embodiment, the rotation axis 5-R does not pass through the turning point of the light ray 5-L.

[0176] Due to the rotation of the optical element 5-30, the position of the light ray 5-L reaching the image sensor module 5-S is fine-tuned, so as to achieve the purpose of focusing.

[0177] In some embodiments, the first electromagnetic drive member 5-410 is a magnet and the second electromagnetic drive member 5-420 is a coil.

[0178] The position sensor 5-430 is installed on the fixed part 5-100 and corresponds to the second electromagnetic driving member 5-420. The position sensor 5-430 is installed to detect the position of the second electromagnetic driving member 5-420 and obtain the rotation angle of the movable part 5-200 relative to the fixed part 5-100. For example, the position sensor 5-430 is a Hall sensor, a magnetoresistive sensor (MR sensor), a giant magnetoresistive sensor (GMR sensor), a tunnel magnetoresistive sensor (TMR sensor), or a fluxgate sensor.

[0179] The wire 5-440 is embedded in the base 5-110 of the fixed part 5-100 and is connected to the first electromagnetic driving member 5-410 and the position sensor 5-430. As shown in FIG. 55, specifically, a plurality of through holes 5-118 are formed on the base 5-111, at least a portion of the wire 5-440 is exposed from the through holes 5-118, and interrupted regions 5-441 of the wire 5-440 are also exposed from the through holes 5-118. Since the interrupted regions 5-441 are formed by drilling, the interrupted regions 5-441 have a circular arc profile.

[0180] The connection portion 5-442 between the wire 5-440 and the position sensor 5-430 is symmetrical with respect to the position sensor 5-430, thereby preventing the position sensor 5-430 from moving due to solder attachment during welding.

[0181] As shown in Figure 51, the magnetic permeable member 5-500 is installed on the movable part 5-200 and is located between the movable part 5-200 and the second electromagnetic driving member 5-420. The magnetic permeable member 5-500 is installed to increase the electromagnetic thrust. Furthermore, the magnetic permeable member 5-500 has at least one extension part 5-510 extending to the movable part 5-200, which increases the mechanical strength of the optical element driving mechanism 5-10.

[0182] Referring to Figures 51 and 54, the damping member 5-600 is installed at the corner of the optical element driving mechanism 5-10, which has a polygonal structure (in this embodiment, a rectangle). For example, the damping member 5-600 is connected to the fixed part 5-100 and the movable part 5-200, or is installed on the elastic member 5-300 to suppress vibration during rotation of the movable part 5-200. The damping member 5-600 is installed on a virtual plane 5-P to increase the stability of the optical element driving mechanism 5-10, and the virtual plane 5-P is perpendicular to the incident direction 5-D1 of the light ray 5-L.

[0183] Referring to Figures 56 to 58, in another embodiment, the optical element driving mechanism 5-10' has a fixed part 5-100', a movable part 5-200', a plurality of elastic members 5-300', a driving assembly 5-400', at least one magnetically permeable member 5-500', and a plurality of damping members 5-600'.

[0184] The fixed part 5-100' has a base 5-110' and a housing 5-120'. The base 5-110' and the housing 5-120' are assembled using a snap connection or adhesive. Furthermore, to allow the user to accurately assemble the base 5-110' and the housing 5-120', the base 5-110' has a positioning member 5-116' protruding from a side wall 5-112', and the housing 5-120' has a positioning slot 5-122' corresponding to the positioning member 5-116'. When the base 5-110' is coupled to the housing 5-120', the positioning member 5-116' enters the positioning slot 5-122'.

[0185] In this embodiment, the base 5-110' has a plurality of joint members 5-117' protruding from the sidewall 5-112' and facing the optical system 5-40. The surfaces of these joint members 5-117' facing the optical system 5-40 are coplanar, and the optical element driving mechanism 5-10 is fixed horizontally to the optical system 5-40.

[0186] The movable part 5-200' is an optical element holder, and the optical element 5-30 is placed on the movable part 5-200'. As shown in FIG. 59, each elastic member 5-300' has at least one first connecting section 5-310', at least one second connecting section 5-320', at least one first curved section 5-330', at least one second curved section 5-340', and at least one axial section 5-350'. The first connecting section 5-310' is fixed to the fixed part 5-100', and the second connecting section 5-320' is fixed to the movable part 5-200'. The first curved section 5-330', the second curved section 5-340', and the axial section 5-350' are placed between the first connecting section 5-310' and the second connecting section 5-320'. The first curved section 5-330' connects the first connecting section 5-310' and the shaft section 5-350', and the second curved section 5-340' connects the second connecting section 5-320' and the shaft section 5-350'. The elastic member 5-300' suspends the movable part 5-200' above the fixed part 5-100'.

[0187] In particular, when viewed from the emission direction 5-D2, the first curved section 5-330' and the second curved section 5-340' overlap at least partially, which allows for effective distribution of stress when the movable part 5-200' rotates.

[0188] As shown in Figure 58, the drive assembly 5-400' includes at least one first electromagnetic drive member 5-410', at least one electromagnetic drive member 5-420', a position sensor 5-430', and a plurality of wires 5-440'. The first electromagnetic drive member 5-410' and the second electromagnetic drive member 5-420' are fixed to the fixed part 5-100' and the movable part 5-200', respectively, and the position of the first electromagnetic drive member 5-410' is This corresponds to the position of the second electromagnetic driving member 5-420'. In this embodiment, the first electromagnetic driving member 5-410' is a coil, and the second electromagnetic driving member 5-420' is a magnet. When current flows through the first electromagnetic driving member 5-410', an electromagnetic action is generated between the first electromagnetic driving member 5-410' and the second electromagnetic driving member 5-420', and the movable part 5-200' and the optical element 5-30 mounted on the movable part 5-200' rotate about the rotation axis 5-R' relative to the fixed part 5-100'.

[0189] According to the structure of the elastic member 5-300', the rotation axis 5-R' passes through the shaft section 5-350' of the elastic member 5-300'. It should be noted that in this embodiment, the rotation axis 5-R' does not pass through the turning point of the light ray 5-L.

[0190] By rotating the optical element 5-30, the light beam 5-L reaching the image sensor module 5-S can be finely adjusted, thereby achieving the purpose of focusing.

[0191] In some embodiments, the first electromagnetic drive member 5-410' is a magnet and the second electromagnetic drive member 5-420' is a coil.

[0192] The position sensor 5-430' is installed on the fixed part 5-100' and corresponds to the second electromagnetic driving member 5-420'. The position sensor 5-430' is installed to detect the position of the second electromagnetic driving member 5-420' and obtain the rotation angle of the movable part 5-200' relative to the fixed part 5-100'. For example, the position sensor 5-430' is a Hall sensor, a magnetoresistive sensor (MR sensor), a giant magnetoresistive sensor (GMR sensor), a tunnel magnetoresistive sensor (TMR sensor), or a fluxgate sensor.

[0193] The wire 5-440' is embedded in the base 5-110' of the fixed part 5-100' and is connected to the first electromagnetic driving member 5-410' and the position sensor 5-430'. As shown in FIG. 61, in detail, a plurality of through holes 5-118' are formed on the base 5-111', and the user can weld the wire 5-440' to the first electromagnetic driving member 5-410' through the through holes 5-118'. In some embodiments, the wire 5-440' is mounted by surface mount technology (SMT), eliminating the need to form through holes on the base 5-111'. The base 5-110' achieves a matched appearance.

[0194] Furthermore, the connection portion 5-442' between the wire 5-440' and the position sensor 5-430' is symmetrical with respect to the position sensor 5-430', thereby preventing the position sensor 5-430' from moving due to solder attachment during welding.

[0195] As shown in Figures 58 and 60, a magnetically permeable member 5-500' is installed on the movable part 5-200' and between the movable part 5-200' and the second electromagnetic driving member 5-420'. The magnetically permeable member 5-500' is installed to increase the electromagnetic thrust. Furthermore, the magnetically permeable member 5-500' has at least one extension portion 5-510' extending to the movable part 5-200' to increase the mechanical strength of the optical element driving mechanism 5-10'. In this embodiment, the extension portion 5-510' extends to the back surface of the optical element driving mechanism 5-10'.

[0196] As shown in Figure 59, the damping member 5-600' is installed at the corner of the optical element driving mechanism 5-10' having a polygonal structure (rectangle in this embodiment). For example, the damping member 5-600' is connected to the fixed part 5-100' and the movable part 5-200', or is installed on the elastic member 5-300' to suppress vibration during rotation of the movable part 5-200. The damping member 5-600' is installed on a virtual plane 5-P' to increase the stability of the optical element driving mechanism 5-10', and the virtual plane 5-P' is perpendicular to the incident direction 5-D1 of the light ray 5-L.

[0197] In summary, there is provided an optical element drive mechanism having a movable part, a fixed part, and a drive assembly. The movable part is connected to the optical element. The movable part is movable relative to the fixed part. The drive assembly is provided to move the movable part relative to the fixed part.

[0198] Sixth embodiment

[0199] Referring to Figure 62, in one embodiment of the present invention, an optical element driving mechanism 6-10 is installed in an electronic device 6-20. The optical element driving mechanism 6-10 is installed to mount an optical element 6-30, and moves the optical element 6-30 relative to an image sensor module (not shown) in the electronic device 6-20 to achieve the purpose of focusing. For example, The electronic device 6-20 is a digital camera or smartphone with the functions of taking photographs and recording videos, and the optical element 6-30 is a prism or a mirror. During photography and video recording, light rays enter the optical element driving mechanism 6-10 along the incident direction (-Z axis) and, after being reflected by the optical element 6-30, travel in the outgoing direction (-Y axis). After passing through the optical system 6-40 in the electronic device 6-20, the light rays reach the image sensor module. The optical system 6-40 is installed to adjust the focus and optical path, and can be installed or omitted as needed.

[0200] Referring to Figures 63 and 64, the optical element driving mechanism 6-10 mainly includes a fixed part 6-100, a movable part 6-200, a support member 6-300, a driving assembly 6-400, an elastic member 6-500, and a magnetically permeable member 6-600.

[0201] The fixed part 6-100 has a base 6-110 and a housing 6-120. The base 6-110 and the housing 6-120 are assembled using a snap connection or adhesive, and after assembly, an accommodating space 6-310 is formed (shown in Figures 67 and 68). The movable part 6-200 is an optical holder, and the optical element 6-30 is placed on the movable part 6-200. When the movable part 6-200 is movably connected to the fixed part 6-100, the movable part 6-200 and the optical element 6-30 are accommodated in the accommodating space 6-130 of the fixed part 6-100.

[0202] As shown in Figures 65 and 66, the movable part 6-200 has a main body 6-210 and two side walls 6-220 connected to opposite sides of the main body 6-210. A plurality of grooves 6-221 are formed on the inner wall surface of each side wall 6-220, and the inner wall surface faces the main body 6-210. A user can place the optical element 6-30 on the inner wall surface 6-211 of the main body 6-210 and then inject adhesive glue into the grooves 6-221. This fixes the optical element 6-30 to the movable part 6-200.

[0203] A recess 6-212 is formed on the outer surface of the main body 6-210, and an annular structure 6-230 is formed on the bottom surface 6-213 of the main body 6-210. The annular structure 6-230 protrudes from the bottom surface 6-213. Each side wall 6-200 has a recess 6-222 and a limiting structure 6-240. The recess 6-222 is formed on the outer surface of each side wall 6-220, and the limiting structure 6-240 is located on the upper side of each side wall 6-220. Each limiting structure 6-240 has an inclined surface 6-241 facing the optical element 6-30.

[0204] As shown in Figures 64, 67, and 68, the support member 6-300 is a ball. After assembly of the optical element driving mechanism 6-10, the support member 6-300 is installed between the base 6-110 and the movable part 6-200, and contacts the base 6-110 and the bottom surface 6-213 of the movable part 6-200. Furthermore, the support member 6-300 is surrounded by an annular structure 6-230.

[0205] Because the thickness of the support member 6-300 in the Z-axis direction is greater than the thickness of the annular structure 6-230, the movable part 6-200 is supported by the support member 6-300 and does not contact the base 6-110. A gap 6-G is formed between the movable part 6-200 and the base 6-110.

[0206] In this embodiment, the inner diameter of the annular structure 6-230 is approximately the same as the diameter of the bearing member 6-300, allowing the bearing member 6-300 to be positioned at a predetermined position. Furthermore, when viewed from the Z axis, the annular structure 6-230 and the bearing member 6-300 overlap with the center of the optical element 6-30.

[0207] Referring to Figures 64, 67, and 68, the drive assembly 6-400 includes first electromagnetic drive members 6-410A and 6-410B, second electromagnetic drive members 6-420A and 6-420B, a circuit board 6-430, and a position sensor 6-440.

[0208] The circuit board 6-430 is fixed to the housing 6-120 and has a U-shaped structure. In other words, the circuit board 6-430 is divided into a left section 6-431, a right section 6-432, and a middle section 6-433. The middle section 6-433 connects the left section 6-431 and the right section 6-432, and the normal direction of the middle section 6-433 is different from the normal direction of the left section 6-431 and the normal direction of the right section 6-432.

[0209] The first electromagnetic driving members 6-410A and 6-410B are mounted on the circuit board 6-430. In this embodiment, the driving assembly 6-400 has one first electromagnetic driving member 6-410A and two first electromagnetic driving members 6-410B. The first electromagnetic driving member 6-410A is mounted on the middle section 6-433 of the circuit board 6-430, and the two first electromagnetic driving members 6-410B are mounted on the left section 6-431 and the right section 6-432 of the circuit board 6-430, respectively.

[0210] The second electromagnetic driving members 6-420A and 6-420B are installed on the movable part 6-200, and the positions of the second electromagnetic driving members 6-420A and 6-420B correspond to the positions of the first electromagnetic driving members 6-410A and 6-410B, respectively. Therefore, the second electromagnetic driving member 6-420A is installed on the main body 6-210 of the movable part 6-200, and the second electromagnetic driving member 6-420B is installed on the side wall 6-220. In this embodiment, the second electromagnetic driving members 6-420A and 6-420B are accommodated in the recesses 6-212 and 6-222, respectively, to miniaturize the optical element driving mechanism 6-10.

[0211] For example, the first electromagnetic driving members 6-410A and 6-410B are coils, and the second electromagnetic driving members 6-420A and 6-420B are magnets. Since the first electromagnetic driving member 6-410A corresponds to the second electromagnetic driving member 6-420A, when current flows through the first electromagnetic driving member 6-410A, an electromagnetic action is generated between the first electromagnetic driving member 6-410A and the second electromagnetic driving member 6-420A, and the movable part 6-200 rotates about a first rotation axis 6-AX1 relative to the fixed part 6-100. In this embodiment, the first rotation axis 6-AX1 passes through the support member 6-300.

[0212] Similarly, since the first electromagnetic driving member 6-410B corresponds to the second electromagnetic driving member 6-420B, when current flows through the first electromagnetic driving member 6-410B, an electromagnetic action is generated between the first electromagnetic driving member 6-410B and the second electromagnetic driving member 6-420B, and the movable part 6-200 rotates about a second rotation axis 6-AX2 relative to the fixed part 6-100. In this embodiment, the second rotation axis 6-AX2 is perpendicular to the first rotation axis 6-AX1, and the second rotation axis 6-AX2 also passes through the support member 6-300.

[0213] Rotation of the movable part 6-200 relative to the fixed part 6-100 also allows the optical element 6-30 on the movable part 6-200 to rotate relative to the fixed part 6-100. Thus, the direction of movement of the reflected light is finely adjusted. In some embodiments, the first electromagnetic driving members 6-410A and 6-410B are magnets, and the second electromagnetic driving members 6-420A and 6-420B are coils.

[0214] Because the movable portion 6-200, base 6-110, and a portion of the bearing member 6-300 are made of metal, and the bearing member 6-300 is a ball, debris generated by friction during rotation of the movable portion 6-200 relative to the fixed portion 6-100 is reduced.

[0215] The position sensor 6-440 is installed on the circuit board 6-430, and the position of the position sensor 6-440 corresponds to the second electromagnetic driving members 6-420A and 6-420B. The position sensor 6-440 is installed to detect the positions of the second electromagnetic driving members 6-420A and 6-420B and obtain the rotation angle of the movable part 6-200 relative to the fixed part 6-100.

[0216] For example, the position sensor 6-440 may be a Hall sensor, a magnetoresistive sensor (MR sensor), a giant magnetoresistive sensor (GMR sensor), a tunnel magnetoresistive sensor (TMR sensor), or a fluxgate sensor.

[0217] Referring to FIG. 69, the elastic member 6-500 has at least one first connecting section 6-510, at least one second connecting section 6-520, at least one first axis section 6-530, at least one second axis section 6-540, and a plurality of string sections 6-550.

[0218] The first connecting section 6-510 and the second connecting section 6-520 are fixed to the fixed part 6-100 and the movable part 6-200, respectively. The first axle section 6-53 is connected to the first connecting section 6-510, the second axle section 6-540 is connected to the second connecting section 6-520, and the string section 6-550 connects the first axle section 6-530 and the second axle section 6-540.

[0219] Before current flows through the first electromagnetic driving members 6-410A and 410B, the elastic member 6-500 provides elastic force to the movable part 6-200, pushing the movable part 6-200 closer to the base 6-110 of the fixed part 6-100. Thus, the movable part 6-200 is closely adjacent to the support member 6-300, and the support member 6-300 is firmly fixed between the movable part 6-200 and the base 6-110, preventing the support member 6-300 from separating.

[0220] In this embodiment, the elastic member 6-500 has two first connecting axes 6-AX1 and 6-AX2. 10 and two second joint axes 6-AX1 6-520, where the two first joint axes 6-AX1 6-510 are arranged along the first rotation axis 6-AX1 and the second joint axis 6-AX1 6-520 is arranged along another direction 6-AX3, which is perpendicular to the first rotation axis 6-AX1 and the second rotation axis 6-AX2.

[0221] In the direction 6-AX3, the string section 6-550 is divided into a first length 6-D1 and a second length 6-D2 by the first axis section 6-530. In this embodiment, the first length 6-D1 is approximately the same as the second length 6-D2, so that the elastic force applied to the movable part 6-200 is uniform. Furthermore, as shown in FIG. 69, in this embodiment, the support member 6-300 is installed at the intersection of the first rotation axis 6-AX1 and the second rotation axis 6-AX2.

[0222] The string section 6-550 can be adjusted as needed. For example, referring to FIG. 70, in another embodiment, the string section 6-550 is divided into a first length 6-D1 and a second length 6-D2 by a first axis section 6-530, where the first length 6-D1 is smaller than the second length 6-D2. Furthermore, in this embodiment, the first axis section 6-530 and the first axis of rotation 6-AX1 are parallel, but they do not overlap with each other.

[0223] Referring to FIG. 64, a magnetically permeable member 9-600 is embedded in the movable portion 6-200 and adjacent to the second electromagnetic driving members 6-420A and 6-420B to increase the magnetic thrust of the driving assembly 6-400.

[0224] In summary, there is provided an optical element drive mechanism having a movable part, a fixed part, and a drive assembly. The movable part is connected to the optical element. The fixed part has a receiving space, and the optical element is received in the receiving space. The movable part is movable relative to the fixed part. The drive assembly is provided to move the movable part relative to the fixed part.

[0225] Seventh embodiment

[0226] Referring to FIG. 71, in one embodiment of the present invention, an optical element driving mechanism 7-10 is installed in an electronic device 7-20. The optical element driving mechanism 7-10 is installed to mount an optical element 7-30 and move the optical element 7-30 to an image sensor module (not shown) in the electronic device 7-20 to achieve the purpose of focusing. For example, the electronic device 7-20 is a digital camera or a smartphone with photography and video recording functions, and the optical element 7-30 is a prism or a mirror. During photography and video recording, light rays enter the optical element driving mechanism 7-10 along the incident direction (-Z axis). After being reflected by the optical element 7-30, the light rays travel along the exit direction (-Y axis) through the optical system 7-40 in the electronic device 7-20 to reach the image sensor module. The optical system 7-40 is installed to adjust the focus and optical path, and can be applied or omitted as needed.

[0227] Referring to Figures 72 and 73, the optical element driving mechanism 7-10 mainly includes a fixed part 7-100, a movable part 7-200, a support member 7-300, a driving assembly 7-400, an elastic member 7-500, a magnetically permeable member 7-600, and a plurality of damping members 7-700.

[0228] The fixed part 7-100 has a base 7-110 and a housing 7-120. The base 7-110 and the housing 7-120 are assembled using a snap connection or adhesive, and after assembly, an accommodating space 7-130 is formed (shown in Figure 76). The movable part 7-200 is an optical holder, and the optical element 7-30 is formed on the movable part 7-200. When the movable part 7-200 is movable and connected to the fixed part 7-100, the movable part 7-200 and the optical element 7-30 are accommodated in the accommodating space 7-130 of the fixed part 7-100.

[0229] As shown in Figures 74 and 75, the movable part 7-200 has a main body 7-210 and two side walls 7-220 connected to opposite sides of the main body 7-210. A plurality of grooves 7-221 are formed on the inner wall surface of each side wall 7-220. The user places the optical element 7-30 on the inner wall surface 7-211 of the main body 7-210 and then injects adhesive glue into the grooves 7-221. This fixes the optical element 7-30 to the movable part 7-200.

[0230] The longitudinal axes of the grooves 7-221 extend in different directions to prevent the optical element 7-30 from falling off the movable part 7-200 when subjected to external forces in various directions. For example, in this embodiment, the movable part has multiple grooves 7-221 extending in the longitudinal direction along the Z axis and multiple grooves 7-221 extending in the longitudinal direction along the Y axis. When a user injects adhesive glue into the grooves 7-221 extending in the longitudinal direction along the Z axis, the adhesive glue provides sufficient adhesive strength to the optical element 7-30 to prevent the optical element 7-30 from falling off the movable part 7-200 when subjected to external forces in the Y axis. When a user injects adhesive glue into the grooves 7-221 extending in the longitudinal direction along the Y axis, the adhesive glue provides sufficient adhesive strength to the optical element 7-30 to prevent the optical element 7-30 from falling off the movable part 7-200 when subjected to external forces in the Z axis.

[0231] A recess 7-222 is formed in the outer surface of each sidewall 7-200, and a recess 7-212 is formed on the outer surface of the main body 7-210. Additionally, the main body 7-210 further has an annular structure 7-230 disposed on and protruding from the lower surface 7-213 of the main body.

[0232] As shown in Figures 73 and 76, the support member 7-300 is a ball. After the optical element drive mechanism 7-10 is assembled, the support member 7-300 is installed between the base 7-110 and the movable part 7-200, and contacts the lower surfaces 7-213 of the base 7-110 and the movable part 7-200. Furthermore, the support member 7-300 is surrounded by an annular structure 7-230.

[0233] In the Z-axis direction, the thickness of the support member 7-300 is greater than the thickness of the annular structure 7-230, so the movable part 7-200 is supported by the support member 7-300 and does not contact the base 7-110. A gap 7-G is formed between the movable part 7-200 and the base 7-110.

[0234] Referring to Figures 73 and 76 to 78, the drive assembly 7-400 includes first electromagnetic drive members 7-410A and 7-410B, second electromagnetic drive members 7-420A and 7-420B, a circuit board 7-430, and a position sensor 7-440.

[0235] The circuit board 7-430 is fixed to the housing 7-120. As shown in FIG. 76, the housing 7-120 of the fixed part 7-100 has a C-shaped structure 7-121. One side of the upper side of the circuit board 7-430 enters the notch of the C-shaped structure 7-121 to position the circuit board 7-430. Similarly, as shown in FIG. 77, the base 7-110 of the fixed part 7-100 has a first limiting portion 7-111 and a second limiting portion 7-112. The first limiting portion 7-111 and the second limiting portion 7-112 extend into the housing 7-120, and the distance between the first limiting portion 7-111 and the movable part 7-200 is greater than the distance between the second limiting portion 7-112. When the circuit board 7-430 is installed on the circuit board 7-110, the other side of the circuit board 7-430 is sandwiched between the first limiting portion 7-111 and the second limiting portion 7-112. Thus, the circuit board 7-430 is fixed and positioned by the C-shaped structure 7-121, the first limiting portion 7-111, and the second limiting portion 7-112.

[0236] In particular, the second limiting portion 7-112 has a chamfer or fillet facing the circuit board 7-430 to increase the area in which the circuit board can be installed and to prevent the circuit board 7-430 from being scraped during assembly.

[0237] The circuit board 7-430 has a U-shaped structure. In other words, the circuit board 7-430 is divided into a left segment 7-431, a right segment 7-432, and a middle segment 7-433. The middle segment 7-433 connects the left segment 7-431 and the right segment 7-432, and the normal direction of the middle segment 7-433 is different from the normal direction of the left segment 7-431 and the normal direction of the right segment 7-432. Furthermore, the circuit board 7-430 has multiple through holes 7-434, and at least a portion of the circuit 7-435 in the circuit board 7-430 is exposed from the through holes 7-434.

[0238] In this embodiment, the drive assembly 7-400 has one first electromagnetic drive member 7-410A and two first electromagnetic drive members 7-410B. The first electromagnetic drive member 7-410A is mounted on the middle segment 7-433 on the circuit board 7-430, and the two first electromagnetic drive members 7-410B are mounted on the left segment 7-431 and the right segment 7-432 of the circuit board 7-430, respectively. The first electromagnetic drive members 7-410A and 7-410B are coils and are connected to the circuit 7-435 by welding via through holes 7-434.

[0239] As shown in Figure 79, when the base 7-110 and the housing 7-120 of the fixing part 7-100 are joined together, one or more openings 7-140 are formed between the base 7-110 and the housing 7-120, and the positions of the openings 7-140 correspond to the positions of the through holes 7-434. A user opens an adhesive member (e.g., glue, not shown) and The opening 7-140 can be filled to further securely fix the base 7-110, the housing 7-120, the circuit board 7-430, and the first electromagnetic driving members 7-410A and 7-410B.

[0240] In some embodiments, the first electromagnetic driving members 7-410A and 7-410B are mounted to the circuit board 7-430 using surface mount technology (SMT), and the through holes 7-434 can be omitted.

[0241] As shown in Figures 80 and 81, the inner tracks of the first electromagnetic drive members 7-410A and 7-410B have an asymmetric pattern, allowing the user to mount the first electromagnetic drive members 7-410A and 7-410B in the correct orientation.

[0242] Referring to Figures 73 and 76 to 78, second electromagnetic driving members 7-420A and 7-420B are installed on the movable part 7-200, and the positions of the second electromagnetic driving members 7-420A and 7-420B correspond to the positions of the first electromagnetic driving members 7-410A and 7-410B, respectively. The second electromagnetic driving member 7-420A is installed on the main body 7-210 of the movable part 7-200, and the second electromagnetic driving member 7-420B is installed on the side wall 7-220 of the movable part 7-200. In this embodiment, the second electromagnetic driving members 7-420A and 7-420B are accommodated in the recesses 7-212 and 7-222 of the movable part 7-200, respectively, to miniaturize the optical element driving mechanism 7-10.

[0243] The second electromagnetic driving members 7-420A and 7-420B are magnets. Since the first electromagnetic driving member 7-410A corresponds to the second electromagnetic driving member 7-420A, when current flows through the first electromagnetic driving member 7-410A, an electromagnetic action is generated between the first electromagnetic driving member 7-410A and the second electromagnetic driving member 7-420A, and the movable part 7-200 rotates about the first rotation axis 7-AX1 relative to the fixed part 7-100.

[0244] Similarly, since the first electromagnetic driving member 7-410B corresponds to the second electromagnetic driving member 7-420B, when current flows through the first electromagnetic driving member 7-410B, an electromagnetic action is generated between the first electromagnetic driving member 7-410B and the second electromagnetic driving member 7-420B, and the movable part 7-200 rotates about the second rotation axis 7-AX2 relative to the fixed part 7-100. In this embodiment, the second rotation axis 7-AX2 is perpendicular to the first rotation axis 7-AX1.

[0245] Rotation of the movable part 7-200 relative to the fixed part 7-100 also causes the optical element 7-30 on the movable part 7-200 to rotate relative to the fixed part 7-100, thereby fine-tuning the direction of the reflected light beam. In some embodiments, the first electromagnetic driving members 7-410A and 7-410B are magnets, and the second electromagnetic driving members 7-420A and 7-420B are coils.

[0246] A position sensor 7-440 is installed on the circuit board 7-430, and the position of the position sensor 7-440 corresponds to the second electromagnetic driving members 7-420A and 7-420B. The position sensor 7-440 is installed to detect the positions of the second electromagnetic driving members 7-420A and 7-420B and obtain the rotation angle of the movable part 7-200 relative to the fixed part 7-100.

[0247] For example, the position sensor 7-440 may be a Hall sensor, a magnetoresistive sensor (MR sensor), a giant magnetoresistive sensor (GMR sensor), a tunnel magnetoresistive sensor (TMR sensor), or a fluxgate sensor.

[0248] The position sensor 7-440 is connected to the circuit board 7-430 by pins. In the absence of pins, the user can fill insulating glue between the position sensor 7-440 and the circuit board 7-430 to securely fasten the position sensor 7-440.

[0249] As shown in FIG. 82, the elastic member 7-500 is connected to the fixed part 7-100 and the movable part 7-200 to suspend the movable part 7-200 in the accommodating space 7-130. The damping member 7-700 is installed on one side of the movable part 7-200 adjacent to the base 7-110 and is located at the corner of the movable part 7-200. During rotation of the movable part 7-200, the damping member 7-700 is connected to the fixed part 7-100 and the movable part 7-200 or installed on the elastic member 7-500 to suppress vibration.

[0250] Referring to Figures 72 and 83, the magnetic permeable member 7-600 is embedded in the movable part 7-200 and has at least one connecting portion 7-610 and at least one curved portion 7-620. The connecting portion 7-610 is adjacent to the second electromagnetic driving member 7-420B, and the curved portion 7-620 is adjacent to the inner wall surface of the side wall 7-220 of the movable part 7-200. In other words, the distance between the curved portion 7-620 and the inner wall surface of the side wall 7-220 of the movable part 7-200 is smaller than the distance between the connecting portion 7-610 and the inner wall surface of the side wall 7-220 of the movable part 7-200.

[0251] A portion of the magnetically permeable member 7-600 adjacent to the second electromagnetic driving member 7-420A and 7-420B (e.g., the connecting portion 7-610) increases the magnetic thrust of the driving assembly 7-400. The curved portion 7-620 is exposed from the groove 7-221 of the movable part 7-200. Therefore, when the user injects adhesive glue into the groove 7-221 to attach the optical element 7-30, the adhesive strength of the adhesive glue increases and the optical element 7-30 is fixed more firmly.

[0252] Furthermore, a dark member 7-800 is installed on the base 110 of the fixed portion 7-100. The dark member 7-800 extends along the direction of light emission to reduce stray light. In this embodiment, the dark member 7-800 extends to a position between the optical element 7-30 and the base 7-100.

[0253] In summary, there is provided an optical element drive mechanism having a movable part, a fixed part, and a drive assembly. The movable part is connected to the optical element. The fixed part has a receiving space, and the optical element is received in the receiving space. The movable part is movable relative to the fixed part. The drive assembly is provided to move the movable part relative to the fixed part.

[0254] Eighth embodiment

[0255] Referring to Figures 84 and 85, in one embodiment of the present invention, an optical element driving mechanism 8-10 is installed in an electronic device 8-20. The optical element driving mechanism 8-10 is installed to carry an optical element 8-30, which moves relative to an image sensor module 8-S in the electronic device 8-20 to achieve the purpose of focusing. For example, the electronic device 8-20 is a digital camera or a smartphone with photography and video recording functions, and the optical element 8-30 is a prism or a mirror. During photography and video recording, a light ray 8-L enters the optical element driving mechanism 8-10 along an incident direction 8-D1 and, after being reflected by the optical element 8-30, travels along an exit direction 8-D2 to reach the image sensor module 8-S.

[0256] It should be noted that in this embodiment, the light ray 8-L enters the optical element 8-30 from the first surface 8-31 of the optical element 8-30 and leaves the optical element 8-30 from the second surface 8-32. In some embodiments, the installation orientation of the optical element driving mechanism 8-10 is adjusted so that the light ray 8-L enters the optical element 8-30 from the second surface 8-32 of the optical element 8-30 and leaves the optical element 8-30 from the first surface 8-31. In other words, in some embodiments, the incident direction 8-D1 and the exit direction 8-D2 are interchangeable.

[0257] Figure 86 is a diagram showing the optical element driving mechanism 8-10, and Figure 87 is an exploded view of the optical element driving mechanism 8-10. As shown in Figures 86 and 87, the optical element driving mechanism 8-10 mainly has a fixed part 8-100, a first movable part 8-200, a second movable part 8-300, and a driving assembly 8-400.

[0258] The fixed part 8-100 has a base 8-110, a frame 8-120, and a case 8-130. The base 8-110 and the frame 8-120 are fixedly assembled to each other, and the case 8-130 covers the base 8-110, the frame 8-120, the first movable part 8-200, the second movable part 8-300, and the drive assembly 8-400 to protect the above components from impacts from external elements.

[0259] As shown in Figures 87 to 89, the frame 8-120 has a main body 8-121 and two first connecting portions 8-122. The main body 8-121 has a C-shaped structure and includes a first section 8-121A, a second section 8-121B, and a third section 8-121C. The second section 8-121B connects the first section 8-121A and the third section 8-121C. The long axis of the second section 8-121B is perpendicular to the long axis of the first section 8-121A and the long axis of the third section 8-121C.

[0260] Two first connecting portions 8-122 are installed on the surface of the main body 8-121 facing the base 8-110 and are arranged along a first axis 8-AX1. The first axis 8-AX1 is inclined with respect to the longitudinal axis of the first section 8-121A and the longitudinal axis of the second section 8-121B, so that one of the first connecting portions 8-122 is adjacent to the connection portion between the second section 8-121B and the third section 8-121C, and the other first connecting portion 8-122 is adjacent to the end of the first section 8-121A that is not connected to the second section 8-121B.

[0261] Furthermore, the frame 8-120 has at least one contact portion 8-123 extending to the base 8-110. In the emission direction 8-D2, the thickness of the contact portion 8-123 is greater than the thickness of the first connecting portion 8-122. Therefore, when the base 8-110 and the frame 8-120 are connected, the contact portion 8-123 contacts the base 8-110, and a gap is formed between the first connecting portion 8-122 and the base 8-110.

[0262] Referring to FIG. 90, in this embodiment, the first movable part 8-200 further has a C-shaped structure and includes two first bearings 8-210, two second bearings 8-220, and a plurality of connecting portions 8-230. The two first bearings 8-210 are arranged along a first axis 8-AX1, and the two second bearings 8-220 are arranged along a second axis 8-AX2, and the connecting portion 8-230 is connected to the first bearings 8-210 and the second bearings 8-220. An acute angle 8-α is formed between the first axis 8-AX1 and the second axis 8-AX2 (for example, the acute angle 8-α is 45 to 90 degrees (e.g., 60 degrees)). Thus, one of the first bearings 8-210 and one of the second bearings 8-220 are respectively installed on two ends of the C-shaped structure. In this embodiment, when viewed from the direction of incidence 8-D1, the intersection of the first axis 8-AX1 and the second axis 8-AX2 is adjacent to the center 8-33 of the optical element 8-30.

[0263] As shown in Figures 89 and 91, the first bearing 8-210 has a ball structure. Each first connecting part 8-122 has two plates 8-124, and each plate 8-124 has a through hole 8-125. The distance between the two plates 8-124 is smaller than the diameter of the first bearing 8-210, and the diameter of the through hole 8-125 is smaller than the diameter of the first bearing 8-210. When the first movable part 8-200 is connected to the fixed part 8-100, the first bearing 8-210 is installed in the first connecting part 8-122, and the first bearing 8-210 is sandwiched between the two plates 8-124 and enters the through hole 8-125. Therefore, the first movable part 8-200 is pivotally connected to the fixed part 8-100 by the first bearing 8-210 and the first connecting part 8-122. The first movable part 8-200 can rotate about a first axis 8-AX1 relative to the fixed part 8-100.

[0264] In this embodiment, the first movable part 8-200 is formed of metal, and the portion of the through hole 8-125 that contacts the first support part 8-210 has a chamfer or fillet to reduce debris generated by friction between the first support part 8-210 and the first connecting part 8-122 during rotation of the first support part 8-210.

[0265] Referring to Figures 92 and 93, the second movable part 8-300 is an optical holder, and the optical element 8-30 is placed on the second movable part 8-300. The second movable part 8-300 has two second coupling parts 8-310 arranged along the second axis 8-AX2. Each second coupling part 8-310 has two plates 8-311, and each plate 8-311 has a through hole 8-312. The distance between the two plates 8-311 is smaller than the diameter of the second support part 8-220, and the diameter of the through hole 8-312 is smaller than the diameter of the second support part 8-220. When the second movable part 8-300 is connected to the first movable part 8-200, the second support part 8-220 is installed in the second connecting part 8-310, and the second support part 8-220 is sandwiched between two plates 8-311 and enters the through hole 8-312. Therefore, the second movable part 8-300 is pivotally connected to the first movable part 8-200 by the second support part 8-220 and the second connecting part 8-310. The second movable part 8-300 can rotate on the second axis 8-AX2 relative to the first movable part 8-200.

[0266] In this embodiment, the first movable part 8-200 is formed of metal, and the portion of the through hole 8-312 that contacts the second bearing part 8-220 has a chamfer or fillet to reduce debris generated by friction between the second bearing part 8-220 and the second connecting part 8-310 during rotation of the second bearing part 8-220.

[0267] It should be noted that the first movable part 8-200 can rotate about the first axis 8-AX1 relative to the fixed part 8-100, so when the first movable part 8-200 rotates, the second axis 8-AX2 simultaneously rotates about the first axis 8-AX1. Therefore, the second axis 8-AX2 can rotate to a position that is not perpendicular or parallel to the emission direction 8-D2.

[0268] Furthermore, the outer surface and lower surface of the second movable part 8-300 respectively have a plurality of recesses 8-330 and a recess 8-340. When the first movable part 8-200 and the second movable part 8-300 are coupled, at least a portion of the first movable part 8-200 (e.g., one of the connecting parts 8-230) is accommodated in the recess 8-340.

[0269] Referring to FIG. 87, the drive assembly 8-400 includes at least one first electromagnetic drive member 8-410, at least one second electromagnetic drive member 8-420, a circuit board 8-430, and at least one position sensor 8-440.

[0270] The circuit board 8-430 is fixed to the fixed part 8-100 and sandwiched between the base 8-110 and the case 8-130. The first electromagnetic driving member 8-410 is installed on the circuit board 8-430 and passes through the opening 8-111 of the base 8-110. The second electromagnetic driving member 8-420 is installed on the second movable part and accommodates the recessed portion 8-330. The first electromagnetic driving member 8-410 corresponds to the second electromagnetic driving member 8-420.

[0271] In this embodiment, the first electromagnetic driving member 8-410 is a coil and the second electromagnetic driving member 8-420 is a magnet. When current flows through the first electromagnetic driving member 8-410, an electromagnetic action is generated between the first electromagnetic driving member 8-410 and the second electromagnetic driving member 8-420, and a driving force is supplied to the second movable part 8-300.

[0272] As shown in FIG. 87, the driving mechanism 8-400 has a plurality of first electromagnetic driving members 8-410 and a plurality of second electromagnetic driving members 8-420, and the first electromagnetic driving members 8-410 and the second electromagnetic driving members 8-420 are installed on the left, right, and rear sides of the second movable part 8-300, so that driving forces of different directions are applied to the second movable part 8-300. Furthermore, since the first movable part 8-200 rotates on a first axis 8-AX1 relative to the fixed part 8-100, and the second movable part 8-300 rotates on a second axis 8-AX2 relative to the first movable part 8-200, the driving assembly 8-400 provides an appropriate driving force to rotate the second movable part 8-300 and the optical element 8-30 on the rotation axis 8-R1 and / or the rotation axis 8-R2. Since the rotation of the rotation axis 8-R1 and the rotation axis 8-R2 is parallel or perpendicular to the emission direction 8-D2 of the light ray 8-L, the light ray emitted to the object can be shifted horizontally.

[0273] The position sensor 8-440 is installed on the circuit board 8-430 and corresponds to the second electromagnetic driving member 8-420. The position sensor 8-440 is installed to detect the position of the second electromagnetic driving member 8-420 and obtain the rotation angle of the second movable part 8-300 relative to the fixed part 8-100.

[0274] For example, the position sensor 8-440 may be a Hall sensor, a magnetoresistive sensor (MR sensor), a giant magnetoresistive sensor (GMR sensor), a tunneling magnetoresistive sensor (TMR sensor), or a fluxgate sensor.

[0275] In summary, an optical element drive mechanism is provided. The optical element drive mechanism is configured to mount and move an optical element. The optical element drive mechanism has a first movable part, a fixed part, and a drive assembly. The first movable part is movable relative to the fixed part. The drive assembly is configured to move the first movable part relative to the fixed part.

[0276] Ninth embodiment

[0277] Referring to Figures 94 and 95, in one embodiment of the present invention, an optical element driving mechanism 9-10 is installed in an electronic device 9-20. The optical element driving mechanism 9-10 is installed to mount an optical element 9-30 and move the optical element 9-30 relative to an image sensor module 9-S in the electronic device 9-20 to achieve the purpose of focusing. For example, the electronic device 9-20 is a digital camera or a smartphone with photography and video recording functions, and the optical element 9-30 is a prism or a mirror. During photography or video recording, a light ray 9-L enters the optical element driving mechanism 9-10 along an incident direction 9-D1 and, after being reflected by the optical element 9-30, travels along an exit direction 9-D2 to reach the image sensor module 9-S.

[0278] Figure 96 is a diagram showing the optical element driving mechanism 9-10, Figure 97 is an exploded view of the optical element driving mechanism 9-10, and Figure 98 is a cross-sectional view along line 9-A-9-A. As shown in Figures 96 to 98, the optical element driving mechanism 9-10 mainly has a fixed part 9-100, a first movable part 9-200, a first drive assembly 9-300, at least one elastic member 9-400, a second movable part 9-500, a second drive assembly 9-600, and at least one magnetically permeable member 9-700.

[0279] The fixture 9-100 includes a base 9-110, a housing 9-120, and a circuit board 9-130. The base 9-110 and the housing 9-120 are assembled using a snap fit or adhesive. The base 9-110 has a bottom 9-111 and a back 9-112, which is perpendicular to the bottom 9-111. The circuit board 9-130 is installed on the bottom 9-111, and the housing 9-120 and the circuit board 9-130 are installed on the opposite side of the bottom 9-111.

[0280] As shown in FIG. 99, in this embodiment, at least one through hole 9-113 and at least one first guide member 9-114 are formed on the bottom 9-111 of the base 9-110. The circuit board 9-130 is exposed from the through hole. The first guide member 9-114 protrudes from the surface 9-111a of the bottom 9-111 facing the first movable part 9-200. For example, the first guide member 9-114 is a pillar, and a portion of the pillar protruding from the bottom 9-111 has a ball structure.

[0281] Furthermore, in this embodiment, at least one receiving recess 9-115 surrounding the post is formed on the surface 9-111a, and a plurality of wires 9-800 are embedded in the back 9-112 of the base 9-110. These wires 9-800 extend and are electrically connected to the circuit board 9-130.

[0282] The first movable part 9-200 is a metal frame and is divided into a bottom part 9-210 and a back part 9-220. As shown in Figures 98 and 100, a second guide member 9-211 and at least one receiving recess 9-212 are formed on the surface of the bottom part 9-210 facing the base 9-110. In this embodiment, the second guide member 9-211 is a guide groove having an arc-shaped structure. When the first movable part 9-200 is coupled to the base 9-110, the first guide member 9-114 (pillar) is movably received in the second guide member 9-211 (guide groove) to limit the movement direction and range of the first movable part 9-200. The position of the receiving recess 9-212 corresponds to the position of the through hole 9-113 of the base 9-110.

[0283] 96-98, the first drive assembly 9-300 includes at least one magnet 9-310, at least one coil 9-320, a position sensor 9-330, and a controller 9-340. The magnet 9-310 is fixed to the first movable part 9-200 and housed in a housing recess 9-212. The coil 9-320, the position sensor 9-330, and the controller 9-340 are mounted on the circuit board 9-130 and housed in a through hole 9-113. The location of the housing recess 9-212 is determined by the position of the base 9-110. The position of the magnet 9-310 corresponds to the position of the through hole 9-113, and therefore the position of the magnet 9-310 corresponds to the position of the coil 9-320. As current flows through the coil 9-320, an electromagnetic action is generated between the magnet 9-310 and the coil 9-320, causing the first movable part 9-200 to move relative to the fixed part 9-100.

[0284] The pillar body of the fixed part 9-100 is movably installed in the guide groove of the first movable part 9-200, so that when the first drive assembly 9-300 moves the first movable part 9-200 relative to the fixed part 9-100, the pillar body slides along the guide groove, and the first movable part 9-200 rotates about a first rotation axis 9-AX1 (Z axis) relative to the fixed part 9-100. In this embodiment, the first rotation axis 9-AX1 passes through the center of the guide groove.

[0285] The first movable part 9-200 and the base 9-110 are made of metal, and the first guide member 9-114 has a ball structure, reducing debris generated by friction between the first guide member 9-114 and the second guide member 9-211. In this embodiment, a lubricant is applied to the first guide member 9-114, allowing the first movable part to move more smoothly. A receiving recess 9-115 is formed around the first guide member 9-114, allowing excess lubricant to flow into the receiving recess 9-115 and preventing short circuits.

[0286] Furthermore, the magnetically permeable member 9-700 is installed on the circuit board 9-130 and corresponds to the magnet 9-310 of the fixed part 9-100. Therefore, the magnetic attraction force between the magnetically permeable member 9-700 and the magnet 9-310 causes the first movable part 9-200 to be firmly adjacent to the base 9-110, thereby preventing separation between the first movable part 9-200 and the base 9-110.

[0287] The position sensor 9-330 is electrically connected to the controller 9-340, which is electrically connected to the coil 9-320. The position sensor 9-330 is installed to detect the position of the magnet 9-310 and obtain the rotation angle of the first movable part 9-200 relative to the base 9-110. The controller 9-340 determines the magnitude of the current provided to the coil 9-320 according to the detection result of the position sensor 9-330.

[0288] For example, the position sensor 9-330 is a Hall sensor, a magnetoresistive sensor (MR sensor), a giant magnetoresistive sensor (GMR sensor), a tunneling magnetoresistive sensor (TMR sensor), or a fluxgate sensor, and the controller 9-340 is a driver IC.

[0289] The second movable part 9-500 is an optical holder and is suspended from the first movable part 9-200 by an elastic member 9-400. As shown in FIG. 101, the first movable part 9-200 has an upper surface 9-230, and the second movable part 9-500 has a lower surface 9-510, with the upper surface 9-230 facing the top wall 9-121 of the housing 9-120 and the lower surface 9-510 facing the base 9-110. The elastic member 9-400 connects the upper surface 9-230 and the lower surface 9-510. Therefore, when the optical element driving mechanism 9-10 is subjected to an external force, the second movable part 9-500 can be prevented from inverting.

[0290] As shown in FIG. 98, in this embodiment, the distance between the first movable part 9-200 and the top wall 9-121 of the housing 9-120 is smaller than the distance between the second movable part 9-500 and the top wall 9-121 of the housing 9-120.

[0291] Referring to Figures 95 to 99, the second drive assembly 9-600 includes at least one magnet 9-610, at least one coil 9-620, a position sensor 9-630, and a controller 9-640. The magnet 9-610 is fixed to the second movable part 9-500. The coil 9-620, the position sensor 9-630, and the controller 9-640 are fixed to the rear part 9-112 of the base 9-110. The coil 9-620, the position sensor 9-630, and the controller 9-640 are electrically connected to each other and correspond to the magnet 9-640 through an opening 9-220 in the first movable part 9-200.

[0292] When current flows through the coil 9-620, an electromagnetic interaction is generated between the magnet 9-610 and the coil 9-620, causing the second movable part 9-500 to rotate about the second rotation axis 9-AX2 (Y-axis) relative to the fixed movable part 9-200.

[0293] The optical element 9-30 is installed on the second movable part 9-500. For example, a plurality of slots 9-520 are formed on the inner wall surface of the second movable part 9-500, and when the optical element 9-30 is installed on the second movable part 9-500, the user can inject adhesive glue into the slots 9-520 to fix the optical element 9-30 to the second movable part 9-500 on its side. Furthermore, a shielding member 9-P (e.g., tape or ink) is installed on the edge of the optical element 9-30 to reduce stray light.

[0294] Since the optical element 9-30 is mounted on the second movable part 9-500, when the second drive assembly 9-600 rotates the second movable part 9-500, the optical element 9-30 is also driven simultaneously and rotates on the second rotation axis 9-AX2 relative to the first movable part 9-200. Furthermore, since the second movable part 9-500 is connected to the first movable part 9-200 by the elastic member 9-400, when the first drive assembly 9-300 rotates the first movable part 9-200, the second movable part 9-500 and the optical element 9-30 simultaneously rotate on the first rotation axis 9-AX1 relative to the fixed part 9-100.

[0295] In this embodiment, when viewed from the incident direction 9-D1, the center of the arc-shaped structure of the second guide member 9-211 is aligned with the center 9-31 of the optical element 9-30.

[0296] 102 to 105, in another embodiment, the optical element driving mechanism 9-10' has a fixed part 9-100', a first fixed part 9-200', a first driving assembly 9-300, at least one elastic member 9-400, a second movable part 9-500, and a second driving assembly 9-600. The structures and connection relationships of the first driving assembly 9-300, the elastic member 9-400, the second movable part 9-500, and the second driving assembly 9-600 in this embodiment are the same as those in the above embodiment, so the description of their features will not be repeated.

[0297] The fixed part 9-100' has a base 9-110' and a housing 9-120'. The base 9-110' has a bottom 9-111' and a back 9-112', and the back 9-112' is approximately perpendicular to the bottom 9-111'. The difference between this embodiment and the above embodiment is that the wire 9-800' is not only embedded in the back 9-112', but also in the bottom 9-111'. The first guide member 9-114' on the bottom 9-111' is a guide groove with an arc-shaped structure. When viewed from the incident direction 9-D1, the center of the arc-shaped structure is aligned with the center 9-31 of the optical element 9-30.

[0298] The wire 9-800' is a magnet, and at least a portion of the wire 9-800' embedded in the base 9-111' corresponds to the magnet 9-310 of the first drive assembly 9-300. Thus, the magnetic attraction between the wire 9-800' and the magnet 9-310 causes the first movable part 9-200' to be firmly adjacent to the base 9-110', preventing separation between the first movable part 9-200' and the base 9-110'.

[0299] The first movable part 9-200' is a metal frame and is divided into a bottom part 9-210' and a back part 9-220'. The second guide member 9-211' installed on the bottom part 9-210' is a ball, and at least one recess 9-240' is formed on the bottom part 9-210' to accommodate the ball. When the first movable part 9-200' and the base 9-110' are coupled, the ball is movably accommodated in the guide groove. Therefore, when the first drive assembly 9-300 moves the first movable part 9-200' relative to the fixed part 9-100', the ball rotates along the guide groove, and the first movable part 9-200' rotates about the first rotation axis 9-AX1 (Z axis) relative to the fixed part 9-100'.

[0300] It should be noted that, as shown in Figure 104, in this embodiment, in the incident direction 9-D1, the shortest distance between the first movable part 9-200' and the top wall 9-121' of the housing 9-120' is the first distance 9-T1, and the shortest distance between the first movable part 9-200' and the base 9-110' is the second distance 9-T2, and the second guide member 9-211' has a thickness 9-K. Since the thickness 9-K is greater than the sum of the first distance 9-T1 and the second distance 9-T2, when the optical element driving mechanism 9-10' is subjected to an external force, a large gap is formed between the first movable part 9-200' and the base 9-110', preventing the ball (second guide member 9-211') from detaching from the guide groove (first guide member 9-114'). Furthermore, in the incident direction 9-D1, the shortest distance between the second movable portion 9-200' and the top wall 9-121' is the third distance 9-T3, and the first distance 9-T1 is smaller than the third distance 9-T3.

[0301] In summary, there is provided an optical element drive mechanism having a first movable part, a fixed part, and a first drive assembly. The first movable part is connected to the optical element. The first movable part is movable relative to the fixed part. The first drive assembly is provided to move the first movable part relative to the fixed part.

[0302] Tenth embodiment

[0303] 106 is a three-dimensional view of an optical element driving mechanism 10-1601 according to one embodiment of the present invention. It should be noted that in this embodiment, the optical element driving mechanism 10-1601 is installed in, for example, an electronic device having a camera function, drives an optical element 10-1690, and has autofocus (AF) and / or optical image stabilization (OIS) functions.

[0304] As shown in FIG. 106, the optical element driving mechanism 10-1601 has a central axis 10-C that is approximately parallel to the Z-axis. The optical element driving mechanism 10-1601 has an incident optical axis 10-01 and an output optical axis 10-02. After a light ray enters the optical element 10-1690 along the incident optical axis 10-01, the light ray changes direction and travels along the output optical axis 10-02. In this embodiment, the incident optical axis 10-01 is approximately parallel to the central axis 10-C (Z-axis), and the output optical axis 10-02 is approximately parallel to the X-axis. The optical element driving mechanism 10-1601 has a housing 10-1610 having a top surface 10-1611 and a first side surface 10-1612. The top surface 10-1611 extends in a direction parallel to the output optical axis 10-02 (i.e., the XY plane). The first side 10-1612 extends from an edge of the top surface 10-1611 along a direction parallel to the incident optical axis 10-01 (the Z-axis). In some embodiments, the first side 10-1612 extends from an edge of the top surface 10-1611 along a direction that is not parallel to the incident optical axis 10-01.

[0305] The optical element drive mechanism 10-1601 further includes a lens drive assembly 10-1700 mounted in a housing 10-1610 of the optical element drive mechanism 10-1601. The lens drive assembly 10-1700 carries a lens 10-1710 corresponding to the optical element 10-1690. The lens 10-1710 performs optical processing on light rays entering the optical element drive mechanism 10-1601, and the light rays pass through the lens 10-1710 of the lens drive assembly 10-1700 with an output optical axis 10-02 that is substantially parallel to the X-axis. In some embodiments, light rays passing through the optical element 10-1690 pass through the lens 10-1710 with an output optical axis 10-02.

[0306] In this embodiment, the output optical axis 10-02 is approximately perpendicular to the incident optical axis 10-01, but is not limited thereto. In some embodiments, the output optical axis 10-02 is not parallel to the incident optical axis 10-01. Consequently, the optical element 10-1690 redirects the light beam so that it enters the optical element driving mechanism 10-1601 along the incident optical axis 10-01 and then exits the optical element driving mechanism 10-1601 along the output optical axis 10-02. After exiting the optical element driving mechanism 10-1601, the light beam travels to an image sensor (not shown) located outside the optical element driving mechanism 10-1601, thereby generating an image on an electronic device.

[0307] Figure 107 is an exploded view of the optical element driving mechanism 10-1601 shown in Figure 106. In this embodiment, the optical element driving mechanism 10-1601 has a substantially rectangular structure. As shown in Figure 107, the optical element driving mechanism 10-1601 mainly includes a fixed part 10-F, a movable part 10-M, an electromagnetic driving assembly 10-1640, multiple elastic members 10-1660, and a lens driving assembly 10-1700. The fixed part 10-F includes a housing 10-1610, a base 10-1620, a frame 10-1650, a circuit component 10-1670, and a bottom plate 10-1671.

[0308] The housing 10-1610 is mounted on the base 10-1620 and protects the elements (e.g., the movable part 10-M and the lens drive assembly 10-1700) mounted within the optical element drive mechanism 10-1601 (i.e., mounted within the housing 10-1610). In some embodiments, the housing 10-1610 is formed from a metal material or another material with sufficient strength to achieve a desirable protective effect. The frame 10-1650 is mounted on the base 10-1620 and fixed to the housing 10-1610. The circuit component 10-1670 is mounted below the base 10-1620 and transmits electrical signals to perform autofocus (AF) and / or optical image stabilization (OIS) functions. For example, the optical element drive mechanism 10-1601 controls the position of the optical element 10-1690 based on the electrical signals to generate an image. In this embodiment, the bottom plate 10-1671 is installed below the circuit component 10-1670 to protect the circuit component 10-1670 and increase the structural strength of the circuit component 10-1670. In other words, the base 10-1620 is installed between the frame 10-1650 and the circuit component 10-1670, and the circuit component 10-1670 is installed between the base 10-1620 and the bottom plate 10-1671.

[0309] The movable part 10-M is movable relative to the fixed part 10-F. The movable part 10-M mainly includes a carrier 10-1630 carrying an optical element 10-1690. As shown in FIG. 107, the carrier 10-1630 is movable and connected to the frame 10-1650 and the base 10-1620. The elastic member 10-1660 is mounted on the carrier 10-1630 and connected to the base 10-1620 and the carrier 10-1630. For example, the elastic member 10-1660 may be made of metal or another suitable elastic material.

[0310] The electromagnetic drive assembly 10-1640 includes a magnetic member 10-1641 and a drive coil 10-1642. The magnetic member 10-1641 is disposed below the carrier 10-1630, and the corresponding drive coil 10-1642 is disposed on the circuit component 10-1670. When current is supplied to the drive coil 10-1642, an electromagnetic drive force is generated by the drive coil 10-1642 and the magnetic member 10-1641 (i.e., the electromagnetic drive assembly 10-1640) to move the carrier 10-1630 and the optical element 10-1690 along the horizontal direction (XY plane) relative to the base 10-1620, thereby performing autofocus (AF) and / or optical image stabilization (OIS) functions. In this embodiment, when viewed along incident optical axis 10-01, carrier 10-1630 overlaps magnetic member 10-1641 and drive coil 10-1642.

[0311] In addition, the carrier 10-1630 is movably suspended between the frame 10-1650 and the base 10-1620 by the electromagnetic driving force of the electromagnetic driving assembly 10-1640 and the acting force of the elastic member 10-1660. Furthermore, a magnetically conductive plate 10-P is installed on the magnetic member 10-1641 to concentrate the magnetic field of the magnetic member 10-1641 and improve the efficiency of the electromagnetic driving assembly 10-1640. In some embodiments, the magnetically conductive plate 10-P is formed of metal or another material with sufficient magnetic permeability.

[0312] In this embodiment, the sensor 10-1680 is mounted on the circuit component 10-1670 and detects changes in the magnetic field of the magnetic member 10-1641 to determine the position of the carrier 10-1630 (optical element 10-1690). For example, when viewed along the incident optical axis 10-01 (Z-axis), the sensor 10-1680 and the carrier 10-1630 overlap. In some embodiments, one of the sensor 10-1680 and the magnetic member 10-1641 is mounted on the fixed part 10-F, and the other of the sensor 10-1680 or the magnetic member 10-1641 is mounted on the movable part 10-M.

[0313] Figure 108 is a cross-sectional view taken along line 10-C-10-C' shown in Figure 106. As shown in Figure 108, the optical element driving mechanism 10-1601 has a second side 10-1613 opposite the first side 10-1612. Because the lens driving assembly 10-1700 is also installed in the housing 10-1610, the optical element 10-1690 is not located at the center of the optical element driving mechanism 10-1601 (i.e., the central axis 10-C does not pass through the optical element 10-1690). In this embodiment, the shortest distance between the optical element 10-1690 and the second side 10-1613 is shorter than the shortest distance between the optical element 10-1690 and the first side 10-1612. In other words, the optical element 10-1690 is close to the second side 10-1613. Conversely, lens drive assembly 10-1700 and lens 10-1710 are adjacent to first side 10-1612.

[0314] FIG. 109 is a three-dimensional view of a carrier 10-1630 and an elastic member 10-1660 according to one embodiment of the present invention. As shown in FIG. 109, the carrier 10-1630 has a main body 10-1631 and a sidewall 10-1633 extending from an edge (e.g., edge 10-1632) of the main body 10-1631. In addition, the carrier 10-1630 further has a first stop 10-1634 and a second stop 10-1635 protruding from the fixed portion 10-F. The arrangement of the first stop 10-1634, the second stop 10-1635, and the fixed portion 10-F will be further discussed below in conjunction with FIG. 110. In this embodiment, the first stop portion 10-1634 and the second stop portion 10-1635 protrude laterally (i.e., horizontally) from the side wall 10-1633 toward the fixed portion 10-F. It should be understood that, although the first stop portion 10-1634 and the second stop portion 10-1635 are illustrated as rectangular structures in this embodiment, this embodiment is merely an example. Those skilled in the art can design the first stop portion 10-1634 and the second stop portion 10-1635 into other shapes as needed.

[0315] When viewed along a direction perpendicular to the incident optical axis 10-01 (Y-axis), the elastic member 10-1660 is positioned between the first stop 10-1634 and the second stop 10-1635. In this embodiment, the elastic member 10-1660 is connected to the carrier 10-1630 by the contact 10-1636. The contact 10-1636 faces the base 10-1620, so that when the optical element 10-1690 is viewed along the incident optical axis 10-01, the contact 10-1636 is not exposed from the carrier 10-1630. In other words, when viewed downward from the top surface 10-1611 of the optical element drive mechanism 10-1601, the contact 10-1636 cannot be observed. As a result, when viewed along the incident optical axis 10-01 (Z-axis), the sidewall 10-1633 partially overlaps with the elastic member 10-1660. In addition, when viewed along the incident optical axis 10-01, the first stop portion 10-1634 and the second stop portion 10-1635 also overlap with the elastic member 10-1660. The above design effectively reduces the space required to arrange the elastic member 10-1660. Therefore, a large optical element 10-1690 can be installed without increasing the volume of the optical element driving mechanism 10-1601, thereby improving the optical performance of the optical element driving mechanism 10-1601.

[0316] Additionally, the carrier 10-1630 has a protruding column 10-1637 protruding from the fixed portion 10-F. The arrangement of the protruding column 10-1637 and the fixed portion 10-F will be further discussed below in conjunction with FIG. 111. In this embodiment, the direction in which the protruding column 10-1637 extends is different from the direction in which the first stop 10-1634 and the second stop 10-1635 extend. For example, the direction in which the protruding column 10-1637 extends (i.e., the X-axis) is approximately perpendicular to the direction in which the first stop 10-1634 and the second stop 10-1635 extend (i.e., the Y-axis). The arrangement of the first stop 10-1634, the second stop 10-1635, and the protruding column 10-1637 limits the movement of the carrier 10-1630 in the horizontal direction (XY plane). As a result, the main body 10-1631 of the carrier 10-1630 is prevented from being damaged by improper horizontal movement, and the optical element 10-1690 carried by the carrier 10-1630 is protected. It should be noted that only one side of the carrier 10-1630 is described, but the other side of the carrier has the same or similar structure as that shown in FIG. 109. For example, both sides of the structure of the carrier 10-1630 have symmetrical structures.

[0317] FIG. 110 is a three-dimensional view of a frame 10-1650, a base 10-1620, and a circuit component 10-1670 according to one embodiment of the present invention. As shown in FIG. 110, the frame 10-1650 and the base 10-1620 are combined to form a rectangular space to accommodate the movable part 10-M (having a carrier 10-1630 and a mounted optical element 10-1690). In this embodiment, the base 10-1620 has a first groove 10-1621, and the frame 10-1650 has a second groove 10-1651. The first groove 10-1621 is provided with a first stop 10-1634, and the second groove 10-1651 is provided with a second stop 10-1635. In other words, the first groove 10-1621 is positioned to correspond to the shape of the first stop 10-1634, and the second groove 10-1651 is positioned to correspond to the shape of the second stop 10-1635. As a result, the first groove 10-1621 and the second groove 10-1651 limit the movement of the first stop 10-1634 and the second stop 10-1635. This keeps the carrier 10-1630 in place and maintains the normal operation of the optical element driving mechanism 10-1601. In addition, when viewed along the incident optical axis 10-01, the first stop portion 10-1634 and the second stop portion 10-1635 overlap with the elastic member 10-1660, so when viewed in the same direction as above (incident optical axis 10-01), the first groove 10-1621 and the second groove 10-1651 overlap with the elastic member 10-1660 (shown in Figure 109).

[0318] Furthermore, the base 10-1620 has a base opening 10-1622 that exposes the drive coil 10-1642 and the sensor 10-1680. Therefore, the drive coil 10-1642 and the magnetic member 10-1641 (shown in FIG. 107) generate electromagnetic force, and the sensor 10-1680 detects changes in the magnetic field of the magnetic member 10-1641. It should be noted that in this embodiment, the upper surface of the drive coil 10-1642 is slightly higher than the upper surface of the sensor 10-1680. With the above design, the drive coil 10-1642 protects the sensor 10-1680 and prevents the movable part 10-M from colliding with the sensor 10-1680, thereby preventing damage to the sensor 10-1680. In addition, the base 10-1620 has a recess 10-1623 that accommodates the protruding column 10-1637.

[0319] FIG. 111 is a partially enlarged three-dimensional view of the carrier 10-1630 and the base 10-1620 according to one embodiment of the present invention. As shown in FIG. 111, the recess 10-1623 has a first surface 10-1624, a second surface 10-1625, and a third surface 10-1626. In this embodiment, the first surface 10-1624 is the bottom surface of the recess 10-1623 and is approximately parallel to the XY plane. The second surface 10-1625 is a side surface of the recess 10-1623 and is approximately parallel to the YZ plane. The third surface 10-1626 is another side surface of the recess 10-1623 and is approximately horizontal to the ZX plane. In other words, the first surface 10-1624, the second surface 10-1625, and the third surface 10-1626 of the recess 10-1623 are perpendicular to each other.

[0320] In some embodiments, a damping material (not shown) is filled between the recess 10-1623 and the protruding column 10-1637, and the damping material contacts at least one surface of the protruding column 10-1637 and the recess 10-1623 (i.e., at least one of the first surface 10-1624, the second surface 10-1625, and the third surface 10-1626). In some embodiments, the damping material contacts the entire surface of the protruding column 10-1637 and the recess 10-1623. The placement of the damping material reduces resonance effects affecting the movable part 10-M. Furthermore, the placement of the protruding column 10-1637 and the recess 10-1623 increases the surface area of the damping material in contact with the carrier 10-1630 and the base 10-1620. This results in a more stable placement of the damping material and improved performance of the damping material.

[0321] FIG. 112 is a three-dimensional view of a carrier 10-1630 according to one embodiment of the present invention. In this embodiment, the carrier 10-1630 has a plurality of adhesive grooves 10-1638 positioned facing the optical element 10-1690 (shown in FIG. 109). An adhesive (not shown) is filled in the adhesive grooves 10-1638 to bond the carrier 10-1630 and the optical element 10-1690. As shown in FIG. 112, the extension direction of the adhesive grooves 10-1638 is not parallel to the incident optical axis 10-01 (Z-axis) and the output optical axis 10-02 (X-axis). That is, the extension direction of the adhesive grooves 10-1638 forms an acute angle between the incident optical axis 10-01 (Z-axis) and the output optical axis 10-02 (X-axis), respectively. The above design reduces the difficulty of injecting adhesive into the adhesive groove 10-1638 and helps ensure that the injected adhesive is evenly distributed between the carrier 10-1630 and the optical element 10-1690.

[0322] As described above, an embodiment of the present invention provides an optical element driving mechanism having an elastic member that overlaps the sidewall of the carrier. This design effectively reduces the space required for arranging the elastic member. Therefore, a larger optical element can be installed without increasing the volume of the optical element driving mechanism, thereby improving the optical performance of the optical element driving mechanism. Furthermore, the acute angle formed between the extension direction of the adhesive groove of the carrier and the incident optical axis reduces the difficulty of injecting adhesive into the adhesive groove and helps the injected adhesive to be distributed evenly between the carrier and the optical element.

[0323] Eleventh embodiment

[0324] First, referring to FIG. 113, an optical element driving mechanism 11-100 according to one embodiment of the present invention is mounted in an electronic device 11-1 to take photos or videos. The electronic device 11-1 may be, for example, a smartphone or a digital camera, but the present disclosure is not limited thereto. It should be noted that the positions and sizes of the optical element driving mechanism 11-100 and the electronic device 11-1 shown in FIG. 113 are merely examples and are not intended to limit the positions and sizes of the optical element driving mechanism 11-100 and the electronic device 11-1. In practice, the optical element driving mechanism 11-100 may be mounted in different positions in the electronic device 11-1 according to different needs.

[0325] Referring to FIG. 114, the optical element driving mechanism 11-100 carries an optical element 11-110 having an optical axis 11-0. The prism module 11-200 is installed outside the optical element driving mechanism 11-100. The prism module 11-200 is located upstream of the light entrance point of the optical element driving mechanism 11-100. The light ray 11-L enters the prism 11-210 of the prism module 11-200, is then reflected by the prism 11-210 to the optical path 11-H, passes through the optical element 11-110, and forms an image.

[0326] Referring to Fig. 115, the optical element driving mechanism 11-100 includes a movable part 11-10, a fixed part 11-20, a drive assembly 11-30, a circuit assembly 11-40, and an adhesive element 11-50 (see Fig. 116). The adhesive element 11-50 is made of solder tin. To adhere and fix using materials such as glue.

[0327] As shown in Fig. 115, the movable part 11-10 contacts the optical element 11-110. The movable part has a holder 11-11. Referring to Fig. 116, the holder 11-11 of the movable part 11-10 has a hollow annular structure and has a through hole 11-11a and a thread structure 11-11b formed on the through hole 11-11a, and the optical element 11-110 is fixed in the through hole 11-11a by the thread structure 11-11b.

[0328] Referring again to FIG. 115, the fixed part 11-20 has an outer frame 11-21 and a base 11-22, and the fixed part 11-20 has a main axis 11-M. The main axis 11-M is not parallel to the optical axis 11-0. In this embodiment, the main axis 11-M is perpendicular to the optical axis 11-0. The outer frame 11-21 has four side walls 11-21a and an upper surface 11-21b. The side walls 11-21a extend from the edge 11-21' of the upper surface 11-21b along the main axis 11-M. That is, the side walls 11-21a are parallel to the main axis 11-M. The upper surface 11-21b intersects with the main axis 11-M, and more particularly, the main axis 11-M passes perpendicularly through the upper surface 11-21b. The upper surface 11-21b has a long side 11-21b'' and a short side 11-21b'''. The extension direction of the short side 11-21b''' is parallel to the optical axis 11-0, and the extension direction of the long side 11-21b'' is not parallel to the optical axis 11-0. At this time, referring to Figures 115 and 116, the base 11-22 has a base plate 11-221, four circuit board positioning structures 11-222, a first opening 11-223, a second opening 11-224, and a plurality of recesses 11-225. The base plate 11-221 and the main axis 11-M intersect and are firmly fixed to the outer frame 11-21.

[0329] Referring to Figure 116, the drive assembly 11-30 has two drive magnetic elements 11-31 and a drive coil assembly 11-32. The drive assembly 11-30 moves the movable part 11-10 relative to the fixed part 11-20, and the drive assembly 11-30 is electrically connected to the circuit assembly 11-40. The drive coil assembly 11-32 has two circuit boards 11-321 and four drive coils 11-322. The circuit board 11-321 has a first circuit board surface 11-321a, a second circuit board surface 11-321b, two coil positioning structures 11-321c, and a connecting circuit 11-321d.

[0330] 115, the circuit assembly 11-40 is located in the base 11-22 of the fixed part 11-20. The circuit assembly 11-40 has a plurality of circuits 11-41. Each circuit 11-41 has a first circuit surface 11-411 and a second circuit surface 11-412.

[0331] Referring to FIG. 117, the circuit board 11-321 is mounted on the base plate 11-221, and the driving magnetic element 11-31 is mounted on the circuit board 11-321. Four driving coils 11-322 are mounted in the circuit board 11-321, each corresponding to a driving magnetic element 11-31. It should be noted that the number of driving coils is not limited to four. In some embodiments, there are one, two, three, or more driving coils 11-322. When current is supplied to the driving coils 11-322, the driving coils 11-322 generate an electromagnetic driving force to move the holder 11-11 of the movable part 11-10 relative to the fixed part 11-20 along the optical axis 11-0. A first circuit board surface 11-321a of the circuit board 11-321 faces the circuit 11-41 of the circuit assembly 11-40, and a second circuit board surface 11-321b faces in the opposite direction from the first circuit board surface 11-321a (see FIG. 121).

[0332] As shown in FIG. 117, the two coil positioning structures 11-321c of each circuit board 11-321 have recessed or opening structures, and the coil positioning structures 11-321c are located on opposite sides of the circuit board 11-321. The circuit board positioning structures 11-222 of the base 11-22 of the fixed part 11-20 correspond to the coil positioning structures 11-321c, and the circuit board positioning structures 11-222 are located in the recessed portions of the coil positioning structures 11-321c to prevent the circuit board 11-321 and the drive coil 11-322 in the circuit board 11-321 from moving relative to the base 11-22 when subjected to an impact. It should be noted that the number of circuit boards 11-321 is not limited to two, and the number of coil positioning structures 11-321c and circuit board positioning structures 11-222 is not limited to four. In some embodiments, there are one, two, three, or more circuit boards 11-321, and one, two, three, five, or more coil positioning structures 11-321c and circuit board positioning structures 11-322. Furthermore, the location of the coil positioning structures 11-321c is not limited to opposite sides of the circuit board 11-321. In some embodiments, the coil positioning structures 11-321c are located on any one side, any two sides, any three sides, or any four sides of the circuit board 11-321.

[0333] Referring to Figure 118, the drive coil 11-322 is arranged along the optical axis 11-0, that is, the direction in which the drive coil 11-322 is arranged is parallel to the extension direction of the short side 11-21b''' (referring to Figure 115, the short side 11-21b''' is parallel to the optical axis 11-0). The circuit board 11-321 further has a connection circuit 11-321d. When observed in a direction perpendicular to the main axis 11-M, the drive coil 11-322 does not overlap with the connection circuit 11-321d. In this embodiment, when viewed along the optical axis 11-0 (in this embodiment, the optical axis 11-0 is perpendicular to the main axis 11-M), the drive coil 11-322 does not overlap with the connection circuit 11-321d. In addition, in the direction of the main axis 11-M, the maximum dimension 11-S2 of the driving coil 11-322 is different from the maximum dimension 11-S1 of the connecting circuit 11-321d. In particular, in the direction of the main axis 11-M, the maximum dimension 11-S1 of the connecting circuit 11-321d is smaller than the maximum dimension 11-S2 of the driving coil 11-322, so that the connecting circuit 11-321d has low resistance.

[0334] Referring to Figures 119A-119C, a first circuit surface 11-411 of the circuit 11-41 faces the circuit board 11-321, and a second circuit board surface 11-412 faces the opposite side of the first circuit surface 11-411. The circuit 11-41 has a coil electrical connection 11-413. The circuit board 11-321 is electrically connected to the circuit 11-41 of the circuit assembly 11-40 by the coil electrical connection 11-413. The coil electrical connection 11-413 is disposed between the first circuit board surface 11-321a of the circuit board 11-321 and a first circuit surface 11-411 of a portion of the circuit 11-41. When viewed along the major axis 11-M, the coil electrical connection 11-413, the first circuit board surface 11-321a, and the first circuit surface 11-411 at least partially overlap. It should be noted that coil electrical connection 11-413 is not located on second circuit board surface 11-321b of circuit board 11-321 and second circuit board surface 11-412 of circuit 11-41. Furthermore, when observed along main axis 11-M, coil electrical connection 11-413, second circuit board surface 11-321b, and second circuit board surface 11-412 at least partially overlap.

[0335] Referring to Figures 120A and 120B, Figure 120A is a view showing a portion of the base 11-22, the circuit assembly 11-40, the circuit board 11-321, and the adhesive element 11-50, and Figure 120B is a local enlarged view of the base 11-22, the circuit assembly 11-40, and the adhesive element 11-50. As shown in Figures 120A and 120B, the circuit 11-41 further has a first buried portion 11-414, a first exposed portion 11-415, a second buried portion 11-416, a second exposed portion 11-417, and a third exposed portion 11-418. The first buried portion 11-414 is buried in the base 11-22 of the fixing portion 11-20 and is not exposed. The first exposed portion 11-415 is electrically connected to the first buried portion 11-414 and exposed to the first opening 11-223 of the base 11-22. The second buried portion 11-416 is buried in the base 11-22 and is not exposed. The second exposed portion 11-417 is electrically connected to the second buried portion 11-416 and exposed to the first opening 11-223. In addition, the first buried portion 11-414 and the first exposed portion 11-415 are electrically independent from the second buried portion 11-416 and the second exposed portion 11-417. That is, the first opening 11-223 accommodates two electrically independent circuits, rather than two electrically independent circuits being separately arranged. This facilitates the processing and manufacturing of the optical element driving mechanism 11-100 and also achieves a compact design.

[0336] As shown in FIG. 120A , the third exposed portion 11-418 is partially exposed to the second opening 11-224 of the base 11-22, and the second opening 11-224 does not house another circuit electrically independent from the third exposed portion 11-418. The function of the second opening 11-224 is not completely the same as that of the first opening 11-223. The second opening 11-224 improves the heat dissipation efficiency of the third exposed portion 11-418 to prevent the elements of the optical element driving mechanism 11-100 from overheating. Furthermore, the second opening 11-224 facilitates the processing and manufacturing of the optical element driving mechanism 11-100 and allows the third exposed portion 11-418 to remain in a desired position.

[0337] Continuing with reference to Figures 120A and 120B, the first exposed portion 11-415 and the second exposed portion 11-417 have surfaces 11-415a and 11-417a, respectively, and the recessed portion 11-225 of the base 11-22 has a recessed surface 11-225a. The surface 11-415a of the first exposed portion 11-415, the surface 11-417a of the second exposed portion 11-417, and the recessed surface 11-225a are located on the same imaginary plane 11-P. The first opening 11-223 further has a first opening side 11-223a, which contacts the recessed surface 11-225a, but the first opening side 11-223a and the recessed surface 11-225a are not parallel to each other. The first exposed portion 11-415 and the second exposed portion 11-417 are partially exposed to the first opening side 11-223a.

[0338] As shown in Figures 120A and 120B, when viewed along the main axis 11-M, the adhesive element 11-50 and the first opening 11-223 at least partially overlap. Here, the adhesive element 11-50 is not solder tin but glue. Furthermore, when viewed perpendicular to the main axis 11-M, the adhesive element 11-50 at least partially overlaps the first opening 11-223. That is, the adhesive element 11-50 is installed in the first opening 11-223 to fix and protect the first exposed portion 11-415 and the second exposed portion 11-417. In addition, when viewed along the main axis 11-M, the circuit board 11-321 at least partially overlaps the first opening 11-223. Therefore, the circuit board 11-321 shields the first opening 11-223 and further prevents foreign matter such as dust from entering the first opening 11-223.

[0339] As shown in FIG. 121, the adhesive element 11-50 of the optical element drive mechanism 11-100 is disposed between the circuit board 11-321 and the base 11-22, where the adhesive element 11-50 is a solder tin 11-50. It should be noted that in some embodiments, the solder tin 11-50 is disposed only between the circuit board 11-321 and the base 11-22. That is, when viewed along the major axis 11-M, the solder tin 11-50 at least partially overlaps the circuit board 11-321 and the base 11-22. However, when viewed along a direction perpendicular to the major axis, the solder tin 11-50 does not overlap the circuit board 11-321 and the base 11-22.

[0340] Referring to FIG. 122, recesses 11-225 are provided on both sides of the first opening 11-223 of the base 11-22. Therefore, the first exposed portion 11-415 and the second exposed portion 11-417 in the first opening 11-223 are more firmly connected (or electrically connected) to other elements of the optical element driving mechanism 11-100. In addition, the first exposed portion 11-415 and the second exposed portion 11-417 are partially exposed to the first opening side 11-223a, which improves the heat dissipation efficiency of the first exposed portion 11-415 and the second exposed portion 11-417 and prevents the elements from overheating.

[0341] Referring to FIG. 123, the circuit 11-41 further includes a first section 11-41a and a second section 11-41b. The first section 11-41a is electrically connected to the second section 11-41b by a connection circuit 11-321d of the circuit board 11-321. More particularly, the first section 11-41a is electrically connected to the connection circuit 11-321d, and the connection circuit 11-321d is electrically connected to the second section 11-41b. Thus, the first section 11-41a and the second section 11-41b are electrically connected in three dimensions (in the direction of the main axis 11-M), avoiding two-dimensional constraints and allowing for routing. This increases the degree of freedom.

[0342] In summary, the circuit assembly 11-40 of the optical element driving mechanism 11-100 is installed in the base 11-22. That is, the optical element driving mechanism 11-100 of the present invention has the feature of circuit embedding. Therefore, the optical element driving mechanism 11-100 is manufactured integrally, strengthening the structure of the optical element driving mechanism 11-100 and reducing the number of elements required by the optical element driving mechanism 11-100, thereby achieving the miniaturization of the optical element driving mechanism 11-100. The circuit embedding of the optical element driving mechanism 11-100 of the present invention not only has the above functions, but also allows the embedded circuit to receive current, and the circuit can be used as an electrical circuit. Therefore, the routing of the optical element driving mechanism 11-100 is simplified, and the optical element driving mechanism 11-100 does not require an additional circuit assembly. This simplifies manufacturing and achieves the effects of miniaturization.

[0343] Twelfth Embodiment

[0344] 124 is a three-dimensional view of an optical element driving mechanism 12-101 according to one embodiment of the present invention. It should be noted that in this embodiment, the optical element driving mechanism 12-101 is installed in, for example, an electronic device having a camera function to drive an optical element (not shown) and perform autofocus (AF) and / or optical image stabilization (OIS) functions.

[0345] As shown in FIG. 124, the optical element driving mechanism 12-101 has a central axis 12-C that is approximately horizontal to the Z axis. The optical element has an optical axis 12-O that is approximately parallel to the X axis. In other words, in this embodiment, the central axis 12-C is approximately perpendicular to the optical axis 12-O. The optical element driving mechanism 12-101 has a housing 12-110 that has a top surface 12-111, a first side surface 12-112, and a second side surface 12-113 (shown in FIG. 126) opposite the first side surface 12-112. The top surface 12-111 extends in a direction parallel to the optical axis 12-O (i.e., the XY plane). The first side surface 12-112 and the second side surface 12-11 3 extends from the edge of the top surface 12-111 in a direction perpendicular to the optical axis 12-0 (the Z axis). In other words, in this embodiment, the first side surface 12-112 and the second side surface 12-113 are approximately parallel to each other. In some embodiments, the first side surface 12-112 and the second side surface 12-113 extend from the edge of the top surface 12-111 in a direction that is not parallel to the optical axis 12-0.

[0346] In addition, the housing 12-110 has a rectangular first opening 12-115 located on the first side 12-112, and the optical axis 12-0 passes through the first opening 12-115. The light passes through an optical element (not shown) installed in the housing 12-110. After passing through the optical element, the light reaches the optical element 12-S installed outside the housing 12-110. That is, the optical element 12-S corresponds to the first opening 12-115 of the housing 12-110. For example, the optical element 12-S is an image sensor, which generates an image on an electronic device. It should be understood that any suitable element (not shown) can be connected between the housing 12-110 and the optical element 12-S to maintain the stability of the optical element 12-S and generate an image. In this embodiment, when viewed along optical axis 12-O (i.e., the direction in which the first optical element and the second optical element are arranged), optical element 12-S and the optical elements located inside housing 12-110 at least partially overlap. In addition, when viewed in a direction perpendicular to optical axis 12-O (e.g., central axis 12-C), optical element 12-S and the optical elements located inside housing 12-110 do not overlap.

[0347] Figure 125 is an exploded view of the optical element driving mechanism 12-101 shown in Figure 124. In this embodiment, the housing 12-110 of the optical element driving mechanism 12-101 has a substantially rectangular structure. The optical element driving mechanism 12-101 mainly has a fixed part 12-F (e.g., a first part), a movable part 12-M (e.g., a second part), a plurality of first elastic members 12-160, a plurality of second elastic members 12-161, a first electromagnetic driving assembly 12-140, and a second electromagnetic driving assembly 12-145. The fixed part 12-F has a housing 12-110, a base 12-120, a frame 12-150, and a circuit component 12-170.

[0348] The housing 12-110 is mounted on the base 12-120 and protects the elements mounted within the optical element driving mechanism 12-101. In some embodiments, the housing 12-110 is formed from metal or another material with sufficient strength to achieve a desirable protective effect. The frame 12-150 is mounted and fixed within the housing 12-110. The circuit components 12-170 are mounted on the base 12-120 and transmit electrical signals to perform autofocus (AF) and / or optical image stabilization (OIS) functions. For example, the optical element driving mechanism 12-101 controls the position of the optical element base based on the electrical signals to generate an image. In this embodiment, the metal member 12-121 is mounted in the base by insert molding, thereby increasing the structural strength of the base 12-120.

[0349] The movable part 12-M is movable relative to the fixed part 12-F. The movable part 12-M mainly includes a carrier 12-130 carrying an optical element. As shown in FIG. 125, the carrier 12-130 is movable and connected to the housing 12-110 and the base 12-120. A first elastic member 12-160 is installed on the carrier 12-130. A second elastic member 12-161 extends in the vertical direction (Z axis) and is connected to the first elastic member 12-160 and the base 12-120. As a result, the carrier 12-130 is connected to the base 12-120 by the first elastic member 12-160 and the second elastic member 12-161. For example, the first elastic member 12-160 and the second elastic member 12-161 may be made of metal or another suitable elastic material.

[0350] The first electromagnetic drive assembly 12-140 includes a first magnetic member 12-141 and a first coil 12-142. The first magnetic member 12-141 is mounted on the frame 12-150, and the corresponding first coil 12-142 is mounted on the carrier 12-130. When an electric current is supplied to the first coil 12-142, an electromagnetic drive force is generated by the first coil 12-142 and the first magnetic member 12-141 (i.e., the first electromagnetic drive assembly 12-140) to move the carrier 12-130 and the optical element along the horizontal direction (XY plane) relative to the base 12-120, thereby performing autofocus (AF) and / or optical image stabilization (OIS) functions.

[0351] In addition, the second electromagnetic driving assembly 12-145 includes a second magnetic member 12-146 and a second coil 12-147. The second magnetic member 12-146 is mounted on the carrier 12-130, and the corresponding second coil 12-147 is mounted on the base 12-120. For example, the second coil 12-147 is a flat plate coil, which reduces the difficulty and time required for assembly. When current is supplied to the second coil 12-147, an electromagnetic driving force is generated by the second electromagnetic driving assembly 12-145 to move the carrier 12-130 and the optical element relative to the base 12-120 along the optical axis 12-0 (X-axis) to perform the autofocus (AF) function. The carrier 12-130 is movably suspended between the frame 12-150 and the base 12-120 by the electromagnetic driving forces of the first electromagnetic driving assembly 12-140 and the second electromagnetic driving assembly 12-145, and the forces of the first elastic member 12-160 and the second elastic member 12-161. Furthermore, a magnetically conductive plate 12-P is installed on the second magnetic member 12-146 to concentrate the magnetic field of the second magnetic member 12-146 and improve the efficiency of the second electromagnetic driving assembly 12-145. In some embodiments, the magnetically conductive plate 12-P is made of metal or another material with sufficient magnetic permeability.

[0352] The sensing assembly 12-180 includes a sensor 12-181, a reference element 12-182, and an integrated circuit (IC) component 12-183. In this embodiment, the sensor 12-181 and the integrated circuit component 12-183 are mounted on the base 12-120, and the reference element 12-182 is mounted in the carrier 12-130. Multiple reference elements 12-182 are mounted. For example, the reference element 12-182 is a magnetic member, and the sensor 12-181 detects changes in the magnetic field of the reference element 12-182, and the position of the carrier 12-130 (and the optical element) is determined by the integrated circuit component 12-183. In some embodiments, one of the sensor 12-181 and the reference element 12-182 is mounted on the fixed part 12-F, and the other of the sensor 12-181 and the reference element 12-182 is mounted on the movable part 12-M.

[0353] Figure 126 is a cross-sectional view taken along line 12B-12B in Figure 124. As shown in Figure 126, the housing 12-110 has a second opening 12-116, and the optical axis 12-0 passes through the second opening 12-116. In this embodiment, the optical element driving mechanism 12-101 has an input end and an output end, the input end corresponding to the second opening 12-116, and the output end corresponding to the first opening 12-115. In this embodiment, light rays enter the optical element from the input end (i.e., the second opening 12-116) and leave the optical element from the output end (i.e., the first opening 12-115) along the optical axis 12-0. In this embodiment, a frame 12-150 is installed between the carrier 12-130 and the housing 12-110. When viewed in a direction parallel to the optical axis 12-0 (X-axis), the frame 12-150 and the carrier 12-130 at least partially overlap.

[0354] In addition, the base 12-120 further has a barrier 12-122 protruding from the top surface 12-111. The barrier 12-122 has a fillet structure, and when viewed from the first opening 12-115 along the optical axis 12-0, the fillet structure is formed on the edge of the first opening 12-115. The optical element driving mechanism 12-101 further has a matrix structure 12-190 installed on the barrier 12-122 (e.g., installed on the fillet structure of the barrier 12-122). The matrix structure 12-190 is installed between the optical element 12-S mounted by the carrier 12-130 and the optical element. For example, a first light ray 12-L1 (e.g., a light ray to form an image) entering the optical element driving mechanism 12-101 travels along the optical axis 12-0, passes through the optical element mounted by the carrier 12-130, and then reaches the optical element 12-S to form an image. Furthermore, the second light ray 12-L2 (e.g., the noise to be removed) travels along a direction that is not parallel to the optical axis 12-0, and after passing through the optical element carried by the carrier 12-130, is reflected by the matrix structure 12-190 and remains within the housing 12-110. The installation of the matrix structure 12-190 effectively reduces the possibility that the second light ray 12-L2 will reach the optical element 12-S, thereby maintaining image quality.

[0355] As shown in FIG. 126, the extension direction of the matrix structure 12-190 is neither parallel nor perpendicular to the propagation direction of the first light ray 12-L1 (i.e., the optical axis 12-O). It should be understood that those skilled in the art can adjust the extension direction of the matrix structure 12-190 according to the propagation direction of the second light ray 12-L2, and the description will not be repeated below. In this embodiment, when viewed along the optical axis 12-O, the matrix structure 12-190 and the first opening 12-115 at least partially overlap.

[0356] Figure 127 is an enlarged three-dimensional view of the optical element driving mechanism 12-101 shown in Figure 124, observed from the output end. As shown in Figure 127, when viewed in a direction parallel to the optical axis 12-0 (X-axis), the barrier 12-122 and the long side 12-117 of the first opening 12-115 at least partially overlap, and a gap is formed between the barrier 12-122 and the short side 12-118 of the first opening 12-115. In other words, when viewed in the same direction, the barrier 12-122 and the short side 12-118 of the first opening 12-115 do not overlap. In addition, the frame 12-150 has a light-shielding structure 12-151 that protrudes from the base 12-120. When viewed in a direction parallel to the optical axis 12-0 (X-axis), the light-shielding structure 12-151 and the long side 12-117 of the first opening 12-115 also at least partially overlap. Similarly, a gap is formed between the light blocking structure 12-151 and the short side 12-118 of the first opening 12-115. In other words, when viewed in the same direction, the light blocking structure 12-151 and the short side 12-118 of the first opening 12-115 do not overlap.

[0357] In some embodiments, the sawtooth structures 12-123, 12-152 are formed on the barrier 12-122 and / or the light-shielding structure 12-151 by a laser engraving process. In some other embodiments, any other regular or irregular structure is formed on the barrier 12-122 and / or the light-shielding structure 12-151 to reduce the likelihood that noise reflected by the optical element driving mechanism 12-101 will enter the image sensor, thereby improving image quality. It should be noted that although both the barrier 12-122 and the light-shielding structure 12-151 are provided in this embodiment, this is merely an example. Those skilled in the art can determine whether to provide the barrier 12-122 and / or the light-shielding structure 12-151 or adjust the positions of the barrier 12-122 and / or the light-shielding structure 12-151 as needed.

[0358] FIG. 128 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. In this embodiment, the sawtooth structure 12-123 has multiple tapered structures and multiple vertices 12-124. The sawtooth structure 12-152 further has multiple vertices 12-153. As shown in FIG. 128, when viewed in a direction parallel to the optical axis 12-0 (X-axis), the vertices 12-124 and 12-153 are exposed from the first opening 12-115. In some embodiments, the distance between the long side 12-117 of the first opening 12-115 and the vertices 12-124 and 12-153 is 0.25 mm or more, thereby effectively blocking noise and preventing it from entering the image sensor. In addition, a matrix structure 12-190 is disposed on the sawtooth structure 12-123 and / or the sawtooth structure 12-152. As a result, the possibility of noise (eg, the second light ray 12-L2 shown in FIG. 126) reaching the optical element 12-S is further reduced, thus preserving image quality.

[0359] FIG. 129 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. As shown in FIG. 129, when viewed in a direction parallel to the optical axis 12-0 (X-axis), the vertices 12-124 and 12-153 are not exposed from the first opening 12-115. That is, the vertices 12-124 and 12-153 overlap with the housing 12-110. In some embodiments, the distance between the long side 12-117 of the first opening 12-115 and the vertices 12-124 and 12-153 is 0.1 mm or more, which effectively reduces noise entering the image sensor. In addition, the matrix structure 12-190 is disposed on the sawtooth structure 12-123 and / or the sawtooth structure 12-152 (shown in FIG. 128). As a result, the possibility of noise reaching the optical element 12-S is further reduced, maintaining image quality.

[0360] FIG. 130 is an enlarged three-dimensional view of an optical element driving mechanism according to another embodiment of the present invention. In this embodiment, the barrier 12-122 has an upper surface 12-125 and a cutting surface 12-126 intersecting the upper surface 12-125. A tapered structure is formed by the upper surface 12-125 and the cutting surface 12-126. The upper surface 12-125 slopes upward, i.e., faces the carrier 12-130 and the top surface 12-111. The cutting surface 12-126 is approximately perpendicular to the optical axis 12-0 and faces the first side surface 12-112. In some embodiments, the fillet between the upper surface 12-125 and the cutting surface 12-126 is no greater than 0.05 mm. Similarly, the light-shielding structure 12-151 has a lower surface (not shown) and a cutting surface intersecting the lower surface. In some embodiments, the fillet between the lower surface and the cutting surface is no greater than 0.05 mm. In addition, the matrix structure 12-190 is disposed on the upper surface 12-125 of the barrier 12-122 and / or the lower surface of the light-shielding structure 12-151. As a result, the possibility of noise reaching the optical element 12-S is further reduced, preserving image quality.

[0361] It should be understood that, although multiple embodiments for installing the matrix structure 12-190 are provided as described above, these embodiments are merely examples and do not limit the scope of the present invention. Those skilled in the art can install the matrix structure 12-190 on the fixed part 12-F (having a housing 12-110, a base 12-120, a frame 12-150, and / or circuit components 12-170) and / or the movable part 12-M. In addition, although the matrix structure 12-190 is installed as a flat surface in some embodiments of the present invention, the matrix structure 12-190 is installed as a curved surface (i.e., has curvature). In some embodiments, the matrix structure 12-190 is installed on an element or part formed of metal.

[0362] Figure 131 is a diagram illustrating a matrix structure 12-190 according to one embodiment of the present invention. As shown in Figure 131, the matrix structure 12-190 is a multi-layer structure and includes a metal layer 12-191, an insulating layer 12-192, and a protrusion 12-193. The metal layer 12-191 is the bottom layer of the matrix structure 12-190. For example, the material of the metal layer 12-191 may be gold (Au), silver (Ag), aluminum (Al), any other suitable metal material, or a combination thereof. The insulating layer 12-192 is formed on the metal layer 12-191. For example, the material of the insulating layer 12-192 may be magnesium fluoride (MgF2), silicon dioxide (SiO2), any other suitable insulating material, or a combination thereof. The protrusion 12-193 is formed on the insulating layer 12-192, and the area of the protrusion 12-193 on the horizontal plane (XY plane) is smaller than the area of the insulating layer 12-192 on the horizontal plane. That is, when viewed vertically, the insulating layer 12-192 is exposed from the protrusion 12-193. For example, the material of the protrusion 12-193 may be gold (Au), silver (Ag), aluminum (Al), any other suitable metal material, or a combination thereof. In some embodiments, the metal layer 12-191 and the protrusion 12-193 are formed of the same material. In some other embodiments, the metal layer 12-191 and the protrusion 12-193 are formed of different materials.

[0363] Figure 132 is a three-dimensional view of a matrix structure 12-190 according to one embodiment of the present invention. As shown in Figure 132, the matrix structure 12-190 has multiple protrusions 12-193 of different sizes. The protrusions 12-193 are formed on an insulating layer 12-192. By arranging the protrusions 12-193 in a specific manner, the surface plasmon resonance (SPR) generated by the matrix structure 12-190 is adjusted and the direction of the light reflected by the matrix structure 12-190 is controlled. As a result, the possibility of noise reaching the optical element 12-S is further reduced, thereby maintaining image quality. It should be understood that the arrangement of the matrix structure 12-190 (e.g., the size and arrangement of each protrusion 12-193) is adjusted for light of a specific wavelength range (e.g., visible light, infrared light, etc.). Thus, the function of preventing noise that degrades image quality is achieved.

[0364] As described above, an embodiment of the present invention provides an optical element driving mechanism having a noise-resistant matrix structure. The provision of the matrix structure further reduces the possibility of noise reaching the optical elements, thereby maintaining image quality. As a result, the optical element driving mechanism is simple and compact. In addition, the matrix structure can be provided with other anti-reflection structures (e.g., barriers) to further improve the effect of maintaining high-quality images.

[0365] Thirteenth Embodiment

[0366] First, referring to Fig. 133, in one embodiment of the present invention, an optical system 13-100 is mounted in an electronic device 13-1 to take photos and videos. The electronic device 13-1 is, for example, a smartphone or a digital camera, but the present invention is not limited thereto. It should be noted that the positions and sizes of the optical system 13-100 and the electronic device 13-1 shown in Fig. 133 are merely examples, and the positions and sizes of the optical system 13-100 and the electronic device 13-1 are not limited. In practice, the optical system 13-100 may be mounted in different positions in the electronic device 13-1 according to different needs.

[0367] Referring to Figures 134 and 135, the optical system 13-100 has a first optical element 13-110, a second optical element 13-120, a movable part 13-10, a fixed part 13-20, a drive assembly 13-30, a circuit assembly 13-40, two metal circuit assemblies 13-50, at least one sensing assembly 13-60, and a connecting element 13-70.

[0368] As shown in Figure 134, the first optical element 13-110 is connected to the movable part 13-10, and the first optical element 13-110 has an optical axis 13-0. The first optical element 13-110 has two non-arc-shaped sides. The second optical element 13-120 is connected to the fixed part 13-20, and the second optical element 13-120 is an image sensing element.

[0369] 135, the movable portion 13-10 has a holder 13-11. The holder 13-11 has a hollow annular structure and has a through-hole 13-11a to accommodate the first optical element 13-110.

[0370] As shown in Figure 134, the fixed portion 13-20 has a fixed portion outer frame 13-21. The fixed portion outer frame 13-21 has a fixed portion outer frame main body 13-211, a fixed portion outer frame surface 13-212, and a fixed portion outer frame bottom surface 13-213. The fixed portion outer frame main body 13-211 has a fixed portion outer frame main body upper surface 13-211a, a fixed portion outer frame main body lower surface 13-211b, two fixed portion outer frame main body sides 13-211c, and a fixed portion outer frame main body opening 13-211d. The fixed portion outer frame main body opening 13-211d accommodates the holder 13-11 and the first optical element 13-110.

[0371] As shown in FIG. 134, the drive assembly 13-30 moves the movable part 13-10 relative to the fixed part 13-20. The drive assembly 13-30 has two drive magnetic elements 13-31 and a drive coil 13-32. The drive magnetic element 13-31 is installed in the fixed part outer frame main body opening 13-211d and is located between the holder 13-11 and the fixed part outer frame main body side 13-211c. The drive coil 13-32 is installed on the holder 13-11. In particular, the drive coil 13-32 surrounds the holder 13-11. When the drive coil 13-32 receives an external current, it interacts with the drive magnetic element 13-31 and generates an electromagnetic drive force to move the holder 13-11 relative to the fixed part 13-20 along the optical axis 13-0.

[0372] Referring to FIG. 134, the circuit assembly 13-40 is electrically connected to the drive assembly 13-30. The circuit assembly 13-40 has a circuit board body 13-41, a circuit board extension 13-42, and a circuit board pin portion 13-43. The circuit board body 13-41 is located between the fixed portion outer frame body 13-211 and the fixed portion outer frame surface 13-212. The circuit board body 13-41 is connected to the circuit board extension 13-42, and the circuit board extension 13-42 is connected to the circuit board pin portion 13-43. The circuit board pin portion 13-43 has a plurality of pins 13-431 and a circuit board pin portion lower surface 13-43a. The pins 13-431 are arranged along the optical axis 13-0. In this embodiment, the circuit board pin section 13-43 has six pins 13-431, two pins 13-431 are used for the drive coil 13-32, and the remaining four pins 13-431 are used for the sense element 13-60.

[0373] 135, the metal circuit assembly 13-50 is installed on the circuit assembly 13-40, and the metal circuit assembly 13-50 is electrically connected to the pin 13-431. The sensing assembly 13-60 is installed on the circuit board body 13-41, and the sensing assembly 13-60 detects changes in the magnetic field generated by the driving magnetic element 13-31, thereby determining the positions of the movable part 13-10 and the first optical element 13-110. Therefore, based on the detection result of the sensing assembly 13-60, the driving assembly 13-30 moves the movable part 13-10 relative to the fixed part 13-20.

[0374] In some embodiments, the movable portion 13-10 further includes a reference element (not shown), which is installed in the movable portion 13-10. The sensing assembly 13-60 detects changes in the magnetic field generated by the reference element, thereby determining the positions of the movable portion 13-10 and the first optical element 13-110. In some embodiments, one of the sensing assembly 13-60 and the reference element is provided on the fixed portion 13-20, and the other of the sensing assembly 13-60 and the reference element is installed in the movable portion 13-10.

[0375] Referring to FIG. 136, the circuit board body 13-41 has two first sides 13-411 and two second sides 13-412. The boundaries between the first sides 13-411 and the second sides 13-412 are represented by four dashed lines 13-W. The first sides 13-411 have a linear structure, and the second sides 13-412 have a curved structure. Furthermore, the first width 13-411a of the first sides 13-411 is substantially uniform, while the second width 13-412a of the second sides 13-412 is non-uniform. Furthermore, the first width 13-411a of the first sides 13-411 and the second width 13-412a of the second sides 13-412 are different. More specifically, the dimension of the second width 13-412a is substantially larger than the first width 13-411a. The sensing element 13-60 is installed on the second side 13-412, and the sensing element 13-60 is electrically connected to the metal circuit assembly 13-50 to detect the movement of the holder 13-11. The circuit board body 13-41 has a two-layer plate structure 13-413. The metal circuit assemblies 13-50 are each located on a different layer of the two-layer plate structure 13-413. This avoids short circuits between the metal circuit assemblies 13-50 themselves and makes it convenient to electrically connect the metal circuit assemblies 13-50 to the pins 13-431 of the circuit board pin section 13-43.

[0376] As shown in Figure 136, the circuit board extension 13-42 is connected to the circuit board main body 13-41, and the circuit board extension 13-42 is attached to the fixed portion outer frame main body side 13-211c of the fixed portion outer frame main body 13-211. Furthermore, a connecting element 13-70 is installed between the circuit board extension 13-42 and the fixed portion outer frame main body side 13-211c, so that the circuit board extension 13-42 is more firmly attached to the fixed portion outer frame main body side 13-211c.

[0377] Continuing to refer to Figure 136, the circuit board pin portion lower surface 13-43a is coplanar with the fixed portion outer frame body lower surface 13-211b, thereby increasing the contact area between the optical system 13-100 and the electronic device 13-1 and more firmly mounting the optical system 13-100 in the electronic device 13-1.

[0378] As shown in Figure 136, the circuit board body 13-41 is coplanar with the fixed portion outer frame surface 13-212, the circuit board extension portion 13-42 is coplanar with the fixed portion outer frame body side 13-211c, and the circuit board pin portion 13-43 is coplanar with the fixed portion outer frame body lower surface 13-211b. In other words, the circuit assembly 13-40 has a three-dimensional structure, and the circuit board body 13-41, the circuit board extension portion 13-42, and the circuit board pin portion 13-43 are not coplanar. Therefore, the volume of the circuit assembly 13-40 is effectively reduced. This achieves the miniaturization of the optical system 13-100.

[0379] Referring to Figure 137, in the modified embodiment shown in Figure 137, the circuit board extension 13-42-1 is coplanar with the circuit board pin portion 13-43-1, and the circuit board extension 13-42-1 is attached to the lower surface 13-211b of the fixed portion outer frame body. The difference from the embodiment shown in Figure 136 is that the contact area between the circuit board extension 13-42-1 and the lower surface 13-211b of the fixed portion outer frame body in the embodiment shown in Figure 137 is larger than the contact area between the circuit board extension 13-42 and the fixed portion outer frame body side 13-211c in the embodiment shown in Figure 136. Therefore, the circuit board extension 13-42-1 in the embodiment shown in Figure 137 is more firmly attached to the fixed portion outer frame body 13-211.

[0380] Referring to Figure 138, in the modified embodiment shown in Figure 138, the circuit board extension 13-42-2 is attached to the second optical element 13-120, thereby preventing the second optical element 13-120 from separating from the fixed portion 13-20 and further stabilizing the internal structure of the optical system 13-100.

[0381] Referring to Figure 139, in the modified embodiment shown in Figure 139, the circuit assembly 13-40-3 has two circuit board extensions 13-42-3 and two circuit board pins 13-43-3, and the circuit board extensions 13-42-3 are connected to the circuit board pins 13-43-3. Each circuit board extension 13-42-3 is attached to the corresponding fixed portion outer frame body side 13-211c-3. Because the circuit assembly 13-40-3 has two circuit board extensions 13-42-3 and two circuit board pins 13-43-3, the circuit board body 13-41-3 does not need to have a two-layer plate structure. Metal circuit assembly 13-50-3 extends from individual circuit board extension 13-42-3 to circuit board pin portion 13-43-3 and is electrically connected to pin 13-431-3 of circuit board pin portion 13-43-3.

[0382] Referring to Figure 140, in the modified embodiment shown in Figure 140, the optical system does not have a circuit assembly. The metal circuit assembly 13-50-4 of the optical system 13-100-4 is installed in the fixed outer frame 13-21-4, and the metal circuit assembly 13-50-4 has three-dimensional routing and is located on the fixed outer frame main body side 13-211c-4. In particular, the metal circuit assembly 13-50-4 extends from the fixed outer frame bottom surface 13-213-4, curves at the boundary between the fixed outer frame bottom surface 13-213-4 and the fixed outer frame main body side 13-211c-4, and then extends and curves within the fixed outer frame main body side 13-211c-4. Then, the metal circuit assembly 13-50-4 extends to the lower surface 13-211b-4 of the fixed outer frame body, curves at the boundary between the fixed outer frame body side 13-211c-4 and the lower surface 13-211b-4 of the fixed outer frame body, and extends the fixed outer frame body 13-211-4 from the fixed outer frame body side 13-211c-4. Thus, the metal circuit assembly 13-50-4 directly receives external current, and the structure of the fixed outer frame 13-21-4 having the three-dimensional metal circuit assembly 13-50-4 becomes more stable.

[0383] Referring to FIG. 141, the optical system 13-100 further includes a fixed lens module 13-200, a prism module 13-300, and a side edge 13-300a. The fixed lens module 13-200 is connected to the fixed portion 13-20. The fixed lens module 13-200 includes a fixed lens assembly 13-210. The fixed lens assembly 13-210 is fixed and non-movable.

[0384] Referring to Figures 142 and 143, Figure 142 is a top view of another embodiment of an optical system 13-100, and Figure 143 is a cross-sectional view of the optical system 13-100 along line 13-A-13-A in Figure 142. The prism module 13-300 is connected to the fixed lens module 13-200 by a connecting element 13-70. In particular, a gap 13-S is provided between the fixed lens module 13-200 and the prism module 13-300, and the connecting element 13-70 is installed in the gap 13-S. Here, the connecting element 13-70 is a glue 13-70. Compared with other connection methods (e.g., screws, etc.), when an error exists between the fixed lens module 13-200 and the prism module 13-300, the glue 13-70 compensates for the error between the fixed lens module 13-200 and the prism module 13-300. However, it should be noted that when observing along the optical axis 13-0, the first optical element 13-110 and the glue 13-70 do not overlap, preventing the glue 13-70 from affecting the imaging of the optical system 13-100. The prism module 13-300 includes a prism 13-310 and a prism module pin portion 13-320.

[0385] As shown in FIG. 143, the prism 13-310 reflects the incident light 13-L into the optical path 13-H, and after passing through the fixed lens assembly 13-210 and the first optical element 13-110, the light ray 13-L is imaged onto the second optical element 13-120.

[0386] Referring again to Figure 141, the circuit board pin portion 13-43 and the prism module pin portion 13-320 are located on the side 13-300a of the optical system 13-100. That is, the circuit board pin portion 13-43 and the prism module pin portion 13-320 are located on the same side. This facilitates connection between external circuits and the circuit board pin portion 13-43 and the prism module pin portion 13-320, simplifying the routing of the optical system 13-100.

[0387] As shown in FIG. 144, in some embodiments, the optical system 13-100 has two fixed lens modules 13-200, which are installed upstream or downstream of the fixed portion 13-20. That is, these two fixed lens modules 13-200 are adjacent to the fixed portion outer frame surface 13-212 and the fixed portion outer frame bottom surface 13-213, respectively. Furthermore, the second optical element 13-120 is connected to the fixed lens module 13-200 adjacent to the fixed portion outer frame surface 13-212. Therefore, various combinations of the fixed lens assembly 13-210 and the first optical element 13-110 provide various zooming capabilities for the optical system 13-100.

[0388] In summary, zooming of the optical system 13-100 of the present disclosure is achieved by changing the positions of the movable part 13-10 and the first optical element 13-110 using the drive assembly 13-30. Furthermore, the present disclosure provides a periscope lens with various zooming functions by combining a fixed lens module 13-200 and a prism module 13-300.

[0389] Fourteenth Embodiment

[0390] FIG. 145 is a three-dimensional diagram of an optical system 14-101 according to one embodiment of the present invention. It should be noted that in this embodiment, the optical system 14-101 is installed in, for example, an electronic device (not shown) having a camera function, and a drive assembly in the optical system moves an optical element. By controlling the position of the optical element, autofocus (AF) and / or optical image stabilization (OIS) functions can be performed.

[0391] As shown in FIG. 145, the optical system 14-101 includes a first optical module 14-110, a second optical module 14-120, a third optical module 14-130 (shown in FIG. 146), a fourth optical module 14-140, a fifth optical module 14-150, and a sixth optical module 14-160, all of which correspond to one another. The optical system 14-101 has an optical axis 14-O1 that is approximately parallel to the Z axis. The optical system 14-101 further includes a second optical axis 14-O2 that is approximately perpendicular to the first optical axis 14-O1. After a light ray enters the optical system 14-101 along the first optical axis 14-O1, the direction of the light ray changes and the light ray travels along the second optical axis 14-O2. In some embodiments, the first optical axis 14-O1 is not parallel to the second optical axis 14-O2.

[0392] In this embodiment, the fourth optical module 14-140 includes a drive assembly 14-142. Light rays enter the fourth optical module 14-140 along a first optical axis 14-O1, and a fourth optical element 14-141 connected to the fourth optical module 14-140 changes the direction of the light rays traveling along a second optical axis 14-O2. The drive assembly 14-142 moves the fourth optical element 14-141, thereby adjusting the path of the light rays and performing autofocus (AF) and / or optical image stabilization (OIS) functions.

[0393] After the light beam is redirected to the second optical axis 14-O2, it passes through the first optical module 14-110, the second optical module 14-120, the sixth optical module 14-160, and the fifth optical module 14-150, in that order. In other words, the fourth optical module 14-140, the first optical module 14-110, the second optical module 14-120, the sixth optical module 14-160, and the fifth optical module 14-150 are arranged along the second optical axis 14-O2. As a result, the shortest distance between the first optical module 14-110 and the fifth optical module 14-150 is longer than the shortest distance between the second optical module 14-120 and the fifth optical module 14-150, and the sixth optical module 14-160 is located between the fifth optical module 14-150 and the second optical module 14-120.

[0394] In some embodiments, the first optical module 14-110 includes a movable portion 14-111, a fixed portion 14-112, and a drive assembly 14-113. The movable portion 14-111 is mounted to connect the first optical element 14-114. The drive assembly 14-113 moves the movable portion 14-111 relative to the fixed portion 14-112, thereby performing autofocus (AF) and / or optical image stabilization (OIS) functions. The second optical module 14-120 is mounted to connect the second optical element 14-121, which corresponds to the first optical element 14-114. For example, a second optical axis 14-O2 passes through the first optical element 14-114 and the second optical element 14-121. The first optical element 14-114 is movable relative to the second optical element 14-121, thereby providing different optical characteristics as needed.

[0395] Since only some optical elements (e.g., the first optical element 14-114) are movable, the design of the drive assembly 14-113 is simplified or the space required for the drive assembly 14-113 is reduced, thereby achieving a compact optical system 14-101. Regarding the detailed arrangement of the first optical module 14-110, the second optical module 14-120, and the fourth optical module 14-140, please refer to other embodiments of the present invention and will not be described in detail here.

[0396] In some embodiments, an image sensor, for example, is connected to the fifth optical module 14-150, so that light entering the optical system 14-101 forms an image after reaching the fifth optical module 14-150. In some embodiments, an optical filter is connected to the sixth optical module 14-160, so that the optical characteristics of the optical system 14-101 are improved. In some embodiments, the sixth optical module 14-160 is optional. In some embodiments, the sixth optical module 14-160 is replaced by a shutter, or a shutter is installed between the sixth optical module 14-160 and the fifth optical module 14-150.

[0397] Figure 146 is a cross-sectional view of the optical system 14-101 shown in Figure 145. As shown in Figure 146, the third optical module 14-130 is disposed between the first optical module 14-110 and the second optical module 14-120 to connect the third optical element 14-131. In some embodiments, the third optical module 14-130 is connected to the first optical module 14-110 and is movable relative to the second optical module 14-120. In some other embodiments, the third optical module 14-130 is connected to the second optical module 14-120 and the first optical module 14-110 is movable relative to the second optical module 14-120 and the third optical module 14-130.

[0398] It should be noted that in the following paragraphs, the term "optical area" is used to indicate the maximum extent (in the YZ plane) that a ray of light passes through each element. Although the present embodiment only shows a cross-sectional view of the optical system 14-101, one skilled in the art should be aware of the proportional relationship between each "optical area" and "area" discussed in this disclosure.

[0399] In this embodiment, the fourth optical element 14-141 has a first area 14-E11 (i.e., a fourth optical area 14-A41) on a plane perpendicular to the second optical axis 14-O2 (i.e., parallel to the first optical axis 14-O1). A second area 14-E12 is provided on a plane perpendicular to the first optical axis 14-O1 (i.e., parallel to the second optical axis 14-O2). It should be noted that the first area 14-E11 is smaller than the second area 14-E12 due to the presence of a cutout below the fourth optical element 14-141. The provision of the cutout reduces the weight of the fourth optical element 14-141 without affecting the optical properties, thereby achieving a weight reduction for the optical system 14-101.

[0400] In addition, the size of the fourth optical module 14-140 is larger than the sizes of the first optical module 14-110 and the second optical module 14-120. An electrical element (not shown) is installed below the first optical module 14-110 and the second optical module 14-120. In this way, the shape of the optical system 14-101 is used more efficiently. For example, the electrical element may be a battery, a capacitor, a resistor, an indicator, or any other suitable electrical element.

[0401] The third optical module 14-130 is connected to a third optical element 14-131. For example, the third optical element 14-131 is an aperture, but the present invention is not limited thereto. The third optical element 14-131 has a third optical area 14-A3 on a plane perpendicular to the second optical axis 14-O2. In this embodiment, the third optical area 14-A3 is smaller than the fourth optical area 14-A4.

[0402] As shown in FIG. 146, the first optical module 14-110 is connected to two first optical elements 14-114A and 14-114B. The first optical elements 14-114A and 14-114B have a first optical area 14-A1. The fourth optical area 14-A41 is larger than the first optical area 14-A1, and the third optical area 14-A3 is smaller than the first optical area 14-A1. It should be understood that the first optical elements 14-114A and 14-114B are cut in this embodiment of the present invention to remove excess portions of the first optical elements 14-114A and 14-114B (e.g., the dotted line portions of the first optical element 14-114A). In this way, the sizes of the first optical elements 14-114A and 14-114B are reduced without affecting the optical properties, thereby achieving a compact optical system 14-101.

[0403] In this embodiment, the first optical element 14-114B is closer to the third optical module 14-130 than the first optical element 14-114A. For example, the material of the first optical element 14-114A may include glass, and the material of the first optical element 14-114B may include plastic, but is not limited thereto. In some embodiments, the refractive index of the material of the first optical element 14-114B is smaller than the refractive index of the material of the first optical element 14-114A.

[0404] The second optical module 14-120 is connected to second optical elements 14-121A, 14-121B, and 14-121C of different sizes. The second optical element 14-121A has a second optical area 14-A21, and the second optical elements 14-121B and 14-121C have a second optical area 14-A22. In this embodiment, the first optical area 14-A1 is approximately equal to the second optical area 14-A22 and is larger than the second optical area 14-A21. The second optical elements 14-121B and 14-121C further have at least one cutout to reduce the size of the second optical elements 14-121A and 14-121B, thereby achieving a compact optical system 14-101. In the present embodiment, second optical element 14-121A is not cut at all, so the shape of second optical element 14-121A is different from the shapes of second optical elements 14-121B and 14-121C.

[0405] It should be understood that, although two first optical elements 14-114A, 14-114B and three second optical elements 14-121A, 14-121B, and 14-121C are shown in this embodiment, the present invention is not limited thereto. Those skilled in the art can adjust the positions and numbers of the first optical elements and the second optical elements as needed, as long as the number of the first optical elements is less than the number of the second optical elements.

[0406] In addition, in this embodiment, the light beam passes through the first optical module 14-110 and then enters the second optical module 14-120, but this is just an example. Those skilled in the art can adjust the positions of the first optical module 14-110 and the second optical module 14-120 as needed so that the light beam first passes through the second optical element 14-121 and then enters the first optical element 14-114.

[0407] The sixth optical element 14-161 is connected to the sixth optical module 14-160 (FIG. 145 ), the sixth optical element 14-161 has a sixth optical area 14-A6. In this embodiment, the sixth optical area 14-A6 is approximately equal to the second optical area 14-A22. The fifth optical element 14-151 is connected to the fifth optical module 14-150 (shown in FIG. 145), and the fifth optical element 14-151 has a fifth optical area 14-A5. In this embodiment, the fifth optical area 14-A5 is smaller than the second optical area 14-A22. In other embodiments, the fifth optical area 14-A5 is approximately equal to the second optical area 14-A22.

[0408] FIG. 147 is a cross-sectional view of an optical system 14-102 according to another embodiment of the present invention. It should be noted that the optical system 14-102 has the same or similar elements and portions as the optical system 14-101. These elements and portions are denoted by the same or similar reference numerals, and detailed descriptions thereof will be omitted. As shown in FIG. 147, the optical system 14-102 has a fourth optical element 14-143, and the size of the fourth optical element 14-143 is larger than the size of the fourth optical element 14-141. In other words, the fourth optical area 14-A42 (i.e., the second area 14-E22) of the fourth optical element 14-143 is larger than the fourth optical area 14-A41 of the fourth optical element 14-141. Similarly, due to the presence of a cutout below the fourth optical element 14-141, the first area 14-E21 is smaller than the second area 14-E22. Because the size of the fourth optical element 14-143 is larger than the size of the fourth optical element 14-141, the removed portion of the fourth optical element 14-143 is also larger than the removed portion of the fourth optical element 14-141.

[0409] As shown in FIG. 147, the first optical module 14-110 is connected to first optical elements 14-115A, 14-115B, and 14-115C of different sizes. The first optical element 14-121A has a first optical area 14-A11, the first optical element 14-121B has a first optical area 14-A12, and the first optical element 14-121C has a first optical area 14-A13. The first optical area 14-A11 is approximately equal to the first optical area 14-A12 and larger than the first optical area 14-A13. The fourth optical area 14-A42 is larger than the first optical areas 14-A11, 14-A12, and 14-A13, and the third optical area 14-A3 is smaller than the first optical areas 14-A11, 14-A12, and 14-A13. Because the first optical element 14-115C is not cut at all, the shape of the first optical element 14-115C adjacent to the third optical module 14-130 is different from the shapes of the first optical elements 14-115A and 14-115B in this embodiment.

[0410] It should be understood that in an embodiment of the present invention, the first optical elements 14-115A and 14-115B are cut to remove excess portions of the first optical elements 14-114A and 14-114B (e.g., the dotted portion of the first optical element 14-115A). In this way, the sizes of the first optical elements 14-115A and 14-115B are reduced without affecting the optical properties, thereby achieving a compact optical system 14-102. In addition, corresponding to the large fourth optical element 14-143, the original size of the first optical element 14-115A in the optical system 14-102 (i.e., the size of the uncut optical element) is larger than the original size of the first optical element 14-114A in the optical system 14-101, as shown by the dotted line.

[0411] In this embodiment, the first optical elements 14-115B and 14-115C are closer to the third optical module 14-130 than the first optical element 14-115A. For example, the material of the first optical element 14-115A may include glass, and the material of the first optical elements 14-115B and 14-115C may include, but is not limited to, plastic. In some embodiments, the refractive index of the material of the first optical elements 14-115B and 14-115C is smaller than the refractive index of the material of the first optical element 14-115A.

[0412] The second optical module 14-120 is connected to second optical elements 14-122A and 14-122B of different sizes. The second optical element 14-122A has a second optical area 14-A23, and the second optical element 14-122B has a second optical area 14-A24. In this embodiment, the first optical areas 14-A11 and 14-A12 are approximately equal to the second optical area 14-A24. The second optical element 14-122B further includes at least one cutout to reduce the size of the second optical element 14-122B, thereby achieving a compact optical system 14-102.

[0413] It should be understood that although three first optical elements 14-115A, 14-115B, and 14-115C and two second optical elements 14-122A and 14-122B are shown in this embodiment, the present invention is not limited thereto. Those skilled in the art can adjust the positions and quantities of the first optical elements and second optical elements as needed, as long as the number of first optical elements is greater than the number of second optical elements. In addition, in some embodiments, multiple third optical modules are installed in the optical system, and at least one first optical element or at least one second optical element is installed between the third optical modules.

[0414] As described above, embodiments of the present invention provide an optical system having a plurality of optical elements, some of which are movable relative to other optical elements. Because some of the optical elements are movable, rather than all of the optical elements, the design of the drive assembly can be simplified or the space required for the drive assembly can be reduced, thereby achieving a compact optical system.

[0415] Fifteenth Embodiment

[0416] 148 is a three-dimensional diagram of an optical system 15-101 according to one embodiment of the present invention. It should be noted that in this embodiment, the optical system 15-101 is installed in, for example, an electronic device (not shown) having a camera function, and a drive assembly within the optical system moves optical elements. Controlling the position of the optical elements can perform autofocus (AF) and / or optical image stabilization (OIS) functions.

[0417] As shown in FIG. 148, the optical system 15-101 includes a first optical module 15-110, a second optical module 15-120, a third optical module 15-130 (shown in FIG. 149), a fourth optical module 15-140, a fifth optical module 15-150, and a sixth optical module 15-160, all of which correspond to one another. The optical system 15-101 has a second optical axis 15-O1 that is approximately parallel to the Z axis. The optical system 15-101 further has a second optical axis 15-O2 that is approximately perpendicular to the second optical axis 15-O1. After a light ray enters the optical system 15-101 along the second optical axis 15-O1, the direction of the light ray changes and the light ray travels along the second optical axis 15-O2. In some embodiments, the second optical axis 15-O1 is not parallel to the second optical axis 15-O2.

[0418] In this embodiment, the fourth optical module 15-140 includes a drive assembly 15-142. Light rays enter the fourth optical module 15-140 along the second optical axis 15-O1, and a fourth optical element 5-141 connected to the fourth optical module 15-140 changes the direction of the light rays traveling along the second optical axis 15-O2. The drive assembly 15-142 moves the fourth optical element 5-141, thereby adjusting the path of the light rays and performing autofocus (AF) and / or optical image stabilization (OIS) functions.

[0419] After the light beam is redirected to the second optical axis 15-O2, it passes through the first optical module 15-110, the second optical module 15-120, the sixth optical module 15-160, and the fifth optical module 15-150, in that order. In other words, the fourth optical module 15-140, the first optical module 15-110, the second optical module 15-120, the sixth optical module 15-160, and the fifth optical module 15-150, in that order, are arranged along the second optical axis 15-O2. As a result, the shortest distance between the first optical module 15-110 and the fifth optical module 15-150 is longer than the shortest distance between the second optical module 15-120 and the fifth optical module 15-150. The sixth optical module 15-160 is located between the fifth optical module 15-150 and the second optical module 15-120.

[0420] In some embodiments, the first optical module 15-110 includes a movable portion 15-111, a fixed portion 15-112, and a drive assembly 15-113. The movable portion 15-111 is mounted and connected to the first optical element 15-114. The drive assembly 15-113 moves the movable portion 15-111 relative to the fixed portion 15-112, thereby performing autofocus (AF) and / or optical image stabilization (OIS) functions. The second optical module 15-120 is mounted and connects the second optical element 15-121, which corresponds to the first optical element 15-114. For example, a second optical axis 15-O2 passes through the first optical element 15-114 and the second optical element 15-121. The first optical element 15-114 is movable relative to the second optical element 15-121 to achieve different optical characteristics as needed.

[0421] Because some of the optical elements (e.g., the first optical element 15-114) are movable, the design of the drive assembly 15-113 is simplified, or the space required for the drive assembly 15-113 is reduced, thereby achieving a compact optical system 15-101. For detailed arrangements of the first optical module 15-110, the second optical module 15-120, and the fourth optical module 15-140, please refer to other embodiments of the present invention (e.g., the thirteenth embodiment shown in paragraphs

[0366] to

[0388] and Figures 133 to 144) and will not be described in detail here.

[0422] In some embodiments, an image sensor, for example, is connected to the fifth optical module 15-150, so that light rays entering the optical system 15-101 form an image after reaching the fifth optical module 15-150. In some embodiments, an optical filter is connected to the sixth optical module 15-160, so that the optical characteristics of the optical system 15-101 are improved. In some embodiments, the sixth optical module 15-160 is optional. In some embodiments, the sixth optical module 15-160 is replaced by a shutter, or a shutter is installed between the sixth optical module 15-160 and the fifth optical module 15-150.

[0423] FIG. 149 is a cross-sectional view of the optical system 15-101 of FIG. 148. As shown in FIG. 149, the third optical module 15-130 is located between the first optical module 15-110 and the fourth optical module 15-140 and connects the third optical element 15-131. As a result, the shortest distance between the first optical module 15-110 and the third optical module 15-130 is shorter than the shortest distance between the second optical module 15-120 and the third optical module 15-130. In some embodiments, the third optical module 15-130 is connected to the first optical module 15-110 and is movable relative to the second optical module 15-120. In some other embodiments, the third optical module 15-130 is connected to the second optical module 15-120, and the first optical module 15-110 is movable relative to the second optical module 15-120 and the third optical module 15-130.

[0424] It should be noted that in the following paragraphs, the term "optical area" is used to indicate the maximum extent to which light rays pass through each element. Although the present embodiment shows only cross-sectional views of optical system 15-101, one skilled in the art should be aware of the proportional relationship between each "optical area" and "area" discussed in this disclosure.

[0425] In this embodiment, the fourth optical element 5-141 has a plane ( That is, on a plane perpendicular to the second optical axis 15-O1 (i.e., parallel to the second optical axis 15-O2), there is a first area 15-E1 (i.e., fourth optical area 15-A4). On a plane perpendicular to the second optical axis 15-O1 (i.e., horizontal to the second optical axis 15-O2), there is a second area 15-E2. It should be noted that since there is a cutout 15-143 below the fourth optical element 5-141, the first area 15-E1 is smaller than the second area 15-E2. By providing the cutout 15-143, the weight of the fourth optical element 5-141 is reduced without affecting the optical properties, thereby achieving a weight reduction of the optical system 15-101.

[0426] The third optical module 15-130 is connected to a third optical element 15-131. For example, the third optical element 15-131 is an aperture, but the present invention is not limited thereto. The third optical element 15-131 has a third optical area 15-A3 on a plane perpendicular to the second optical axis 15-O2. In this embodiment, the third optical area 15-A3 is smaller than the fourth optical area 15-A4.

[0427] As shown in FIG. 149, the first optical module 15-110 is connected to first optical elements 15-114A, 15-114B, and 15-114C of different sizes. The first optical elements 15-114A, 15-114B, and 15-114C have first optical areas 15-A11, 15-A12, and 15-A13 of different sizes, respectively. In this embodiment, the first optical area 15-A11 is smaller than the first optical area 15-A12, which is smaller than the first optical area 15-A13. The fourth optical area 15-A4 is larger than the first optical areas 15-A11, 15-A12, and 15-A13, and the third optical area 15-A3 is smaller than the first optical areas 15-A11, 15-A12, and 15-A13. It should be understood that in this embodiment, first optical elements 15-114A, 15-114B, and 15-114C are shown as elliptical, but first optical elements 15-114A, 15-114B, and 15-114C may be arranged in other shapes.

[0428] In this embodiment, the first optical element 15-114A is closer to the third optical module 15-130 than the first optical element 15-114B. For example, the material of the first optical element 15-114A may include plastic, and the material of the first optical element 15-114B may include glass, but is not limited to such. In some embodiments, the refractive index of the material of the first optical element 15-114A is smaller than the refractive index of the material of the first optical element 15-114B.

[0429] The second optical module 15-120 is connected to the second optical elements 15-121A and 15-121B. The second optical elements 15-121A and 15-121B have second optical areas 15-A2. In this embodiment, the second optical elements 15-121A and 15-121B each have at least one cutout 15-122 to remove excess portions of the second optical elements 15-121A and 15-121B. The provision of the cutout 15-122 reduces the size of the second optical elements 15-121A and 15-121B without affecting the optical properties, thereby achieving a compact optical system 15-101. In an embodiment of the present invention, the first optical elements 15-114A, 15-114B, and 15-114C are not cut at all, so the shapes of the first optical elements 15-114A, 15-114B, and 15-114C are different from the shapes of the second optical elements 15-121A and 15-121B.

[0430] It should be noted that the original dimensions of the second optical elements 15-121A and 15-121B (i.e., the dimensions before the cutout 15-122 is formed) are different and are determined based on the surface curvatures of the second optical elements 15-121A and 15-121B. As shown in FIG. 149, the second optical area 15-A2 is larger than the fourth optical area 15-A4 and is also larger than the first optical areas 15-A11, 15-A12, 15-A13, and the third optical area 15-A3. Furthermore, in some embodiments, the second optical area 15-A2 is larger than the second area 15-E2 of the fourth optical element 5-141.

[0431] The first optical module 15-110 has a first surface 15-S1, and the second optical module 15-120 has a second surface 15-S2. The first surface 15-S1 faces the second surface 15-S2. In some embodiments, the first optical module 15-110 (e.g., the fixing portion 15-112) and the second optical module 15-120 are connected to each other by a connecting element (not shown), and the connecting element is installed on the first surface 15-S1 and the second surface 15-S2. In addition, in this embodiment, the light beam passes through the first optical module 15-110 and then enters the second optical module 15-120, but this is merely an example...

Claims

1. An optical element driving mechanism, a first movable portion, a fixed portion, and a first drive assembly; the first movable part is configured to connect an optical element; the first movable portion is movable relative to the fixed portion, the first drive assembly is configured to drive the first movable part to move relative to the fixed part; The optical element is configured to adjust the direction of light emission from an incident direction to an exit direction; the first drive assembly is configured to drive the first movable part to rotate about a first axis of rotation relative to the fixed part; the incident direction is not parallel to the output direction, and the first rotation axis is parallel or perpendicular to the incident direction; the first drive assembly includes a magnet and a coil disposed on the first movable part and the fixed part, respectively; The optical element driving mechanism includes a plurality of wires embedded in the fixed portion, the wires being magnetic, and at least some of the wires corresponding to the magnet.

2. the optical element driving mechanism further comprises a second movable part and a second drive assembly; the second drive assembly is configured to drive the second movable part to move relative to the first movable part and the fixed part; At least a portion of the first drive assembly is disposed on the first movable portion; The optical element driving mechanism according to claim 1 , wherein at least a portion of the second driving assembly is disposed on the second movable part.

3. The optical element driving mechanism of claim 1, further comprising a magnetically permeable member arranged in the fixed portion and corresponding to the magnet.

4. The optical element driving mechanism includes: a first guide member disposed on the fixed portion; The optical element driving mechanism according to claim 2 , further comprising: a second guide member disposed on the first movable portion and movably connected to the first guide member.

5. 5. The optical element driving mechanism according to claim 4, wherein the first guide member is a guide groove, and the second guide member is a ball.

6. The optical element driving mechanism according to claim 5 , wherein the first movable part has a recessed part, and the ball is accommodated in the recessed part.

7. The optical element driving mechanism according to claim 5 , wherein the guide groove has an arc-shaped structure.

8. The optical element driving mechanism of claim 7 , wherein a center of the arc-shaped structure is aligned with a center of the optical element when viewed from the incident direction.

9. the stationary portion comprises a housing having a base and a top wall; 5. The optical element driving mechanism of claim 4, wherein in the incident direction, the shortest distance between the first movable part and the top wall is a first distance, the shortest distance between the first movable part and the base is a second distance, and the second guide member has a thickness greater than the sum of the first distance and the second distance.

10. The optical element driving mechanism according to claim 4 , wherein the first guide member is a pillar, the second guide member is a guide groove, and the pillar protrudes from a surface of the fixed part facing the second movable part.

11. The optical element driving mechanism according to claim 10 , wherein the fixing portion further comprises a receiving recess formed on the surface surrounding the post.

12. The optical element driving mechanism according to claim 10 , wherein the guide groove has an arc-shaped structure.

13. The optical element driving mechanism of claim 12 , wherein a center of the arc-shaped structure is aligned with a center of the optical element when viewed from the incident direction.

14. the stationary portion comprises a housing having a base and a top wall; 3. The optical element driving mechanism of claim 2, wherein in the incident direction, the shortest distance between the first movable part and the top wall is a first distance, the shortest distance between the second movable part and the top wall is a third distance, and the first distance is different from the third distance.

15. The optical element driving mechanism of claim 14 , wherein the first distance is less than the third distance.

16. The optical element driving mechanism according to claim 1 , further comprising a shielding member disposed on a peripheral edge of the optical element.

17. The optical element driving mechanism according to claim 2 , further comprising an elastic member connecting the first movable part to the second movable part.

18. the stationary portion further comprises a housing having a base and a top wall; 18. The optical element driving mechanism of claim 17, wherein the first movable part has an upper surface facing the top wall, the second movable part has a lower surface facing the base, and the elastic member is connected to the upper and lower surfaces.

Images