Optical element driving mechanism

Abstract

The invention provides an optical element driving mechanism. The optical element driving mechanism comprises a fixed assembly, a movable assembly and a driving assembly. The movable assembly is configured to be connected with an optical element, and the movable assembly can move relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The fixing assembly includes an accommodating space configured to accommodate the optical element.

Description

Technical Field

[0001] The present disclosure relates to an optical element driving mechanism, and particularly to an optical element driving mechanism having a long focal length and an anti-shake function. Background Art

[0002] With the development of technology, many current electronic devices (such as smart phones) have functions of taking pictures or videos. Through a camera module disposed on the electronic device, a user can operate the electronic device to capture various photos.

[0003] The current design of electronic devices is continuously trending towards miniaturization, such that various components or their structures of the camera module must also be continuously reduced to achieve the purpose of miniaturization. Generally, the driving mechanism in the camera module may have a lens carrier configured to carry a lens, and the driving mechanism may have functions of auto focusing or optical image stabilization. However, although the existing driving mechanism can achieve the aforementioned functions of taking pictures or videos, it still cannot meet all requirements.

[0004] Therefore, how to design a camera module that can simultaneously perform auto focusing, optical image stabilization and achieve miniaturization is a topic worthy of exploration and solution today. Summary of the Invention

[0005] In view of this, an object of the present disclosure is to provide an optical element driving mechanism to solve the above problems.

[0006] The present disclosure provides an optical element driving mechanism, including a fixed component, a movable component, and a driving component. The movable component is configured to connect an optical element, and the movable component can move relative to the fixed component. The driving component is configured to drive the movable component to move relative to the fixed component. The fixed component includes an accommodation space configured to accommodate the optical element.

[0007] According to some embodiments of the present disclosure, the fixing component includes a housing and a base. The housing is fixedly connected to the base along a main axis. The housing has a first opening, and when viewed along the main axis, the optical element is exposed through the first opening. The housing also has a second opening, and when viewed along a first axial direction, the optical element is exposed through the second opening. The first opening communicates with the second opening. An external light ray enters the first opening along an optical axis and then enters the optical element, and then exits from the optical element and the second opening along the first axial direction. The movable component includes a first movable portion and a second movable portion. The first movable portion is movably connected to the second movable portion. The second movable portion is movably connected to the base. The optical element driving mechanism further includes a first elastic element connected between the first movable portion and the second movable portion. The first elastic element has a first connection end, a second connection end, and a first flexible portion. The first connection end is fixedly connected to the first movable portion, the second connection end is fixedly connected to the second movable portion, and the first flexible portion is connected between the first connection end and the second connection end. The optical element driving mechanism further includes a second elastic element connected between the second movable portion and the base. The second elastic element has a third connection end, a fourth connection end, and a second flexible portion. The third connection end is fixedly connected to the second movable portion, the fourth connection end is fixedly connected to the base, and the second flexible portion is connected between the third connection end and the fourth connection end. The first elastic element is located on a top surface of the movable component. The second elastic element is located on a rear side surface of the movable component. The second connection end has a plate-like structure and is located in a first plane. The third connection end has a plate-like structure and is located in a second plane. The first plane is not parallel to the second plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present disclosure can be clearly understood through the following detailed description in conjunction with the drawings. It should be emphasized that, in accordance with the standard practice in the industry, the various features are not drawn to scale and are for illustrative purposes only. In fact, for the purpose of clear illustration, the dimensions of the various features may be arbitrarily enlarged or reduced.

[0009] Figure 1 FIG. 9 is a perspective view of an optical element driving mechanism according to an embodiment of the present disclosure.

[0010] Figure 2 FIG. 13 is an exploded view of an optical element driving mechanism according to an embodiment of the present disclosure.

[0011] Figure 3 FIG. 17 is a perspective view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure from another perspective.

[0012] Figure 4 FIG. 21 is a perspective view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0013] Figure 5 A perspective view from another angle of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0014] Figure 6 A perspective sectional view of an optical element driving mechanism according to an embodiment of the present disclosure along Figure 1 section line A-A in

[0015] Figure 7 An enlarged perspective view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0016] Figure 8 A perspective view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0017] Figure 9 A sectional view of an optical element driving mechanism according to an embodiment of the present disclosure along Figure 1 section line B-B in

[0018] Figure 10 An exploded view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0019] Figure 11 An exploded view of a partial structure of an optical element driving mechanism from another angle according to an embodiment of the present disclosure.

[0020] Figure 12 A sectional view of an optical element driving mechanism according to an embodiment of the present disclosure along Figure 1 section line C-C in

[0021] Figure 13 A top view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0022] Reference numerals are as follows:

[0023] 100: Optical element driving mechanism

[0024] 102: Housing

[0025] 1023: Accommodating space

[0026] 106: First elastic element

[0027] 1061: First connection end

[0028] 1062: Second connection end

[0029] 1063: First flexible portion

[0030] 107: First strengthening member

[0031] 108: First movable portion

[0032] 109: Second movable part

[0033] 110: Second elastic element

[0034] 1101: Third connection end

[0035] 1102: Fourth connection end

[0036] 1103: Second flexible part

[0037] 111: Force - applying element

[0038] 1111: Fifth connection end

[0039] 1112: Sixth connection end

[0040] 1113: Third flexible part

[0041] 112: Base

[0042] 112BP: Back panel

[0043] 112C: Protrusion

[0044] 113: Gripping element

[0045] 1131: Gripping groove

[0046] 114: Circuit component

[0047] 1141: First circuit part

[0048] 1142: Second circuit part

[0049] 115: Second reinforcement part

[0050] ACE: Attracting element

[0051] ACF: Magnetic attraction force

[0052] AS1: First accommodating space

[0053] AX1: First axial direction

[0054] AX2: Second axial direction

[0055] AX2: Second axial direction

[0056] BG11: First guiding element

[0057] BG12: First guiding element

[0058] BG21: Second guiding element

[0059] BG22: Second guiding element

[0060] CL1: First coil

[0061] CL2: Second coil

[0062] CL3: Third coil

[0063] DA: Driving component

[0064] DS1: First distance

[0065] DS2: Second distance

[0066] FA: Fixing component

[0067] FP1: First limiting surface

[0068] FP2: Second limiting surface

[0069] FP3: Third limiting surface

[0070] FP4: Fourth limiting surface

[0071] FP5: Fifth limiting surface

[0072] GEL1: Bonding element

[0073] GTY: Center of gravity

[0074] LH1: First length

[0075] LH2: Second length

[0076] LT: External light

[0077] MA: Moving component

[0078] MF1: First electromagnetic driving force

[0079] MF2: Second electromagnetic driving force

[0080] MF3: Third electromagnetic driving force

[0081] MG1: First driving element

[0082] MG2: Second driving element

[0083] MG3: Third driving element

[0084] MP1: First plate

[0085] MP11: First notch

[0086] MP2: Second plate

[0087] MP21: Second notch

[0088] MP22: Third notch

[0089] MP23: Fourth Notch

[0090] MX: Main Shaft

[0091] OE: Optical Element

[0092] OES: Reflective Surface

[0093] OP1: First Opening

[0094] OP2: Second Opening

[0095] OX: Optical Axis

[0096] PF1: Pre-pressure

[0097] RC1: First Receiving Groove

[0098] RC2: Second Receiving Groove

[0099] RS: Rear Side

[0100] RX1: First Rotating Shaft

[0101] RX2: Second Rotating Shaft

[0102] STP1: First Reinforcing Plate

[0103] STP2: Second Reinforcing Plate

[0104] TS: Top Surface

[0105] YK0: Reinforcing Base

[0106] YK1: First Reinforcing Structure

[0107] YK11: First Side

[0108] YK12: Second Side

[0109] YK13: Third Side

[0110] YK2: Second Reinforcing Structure

[0111] YK21: First Contact Part

[0112] YK22: First Reinforcing Part

[0113] YK3: Third Reinforcing Structure

[0114] YK31: Fourth Side

[0115] YK4: Fourth Reinforcing Structure

[0116] YK41: Fifth Side

[0117] YK5: Fifth Reinforcing Structure

[0118] YK50: Strengthened body

[0119] YK51: Second contact part

[0120] YK52: Third contact part

[0121] YK53: Bending structure

[0122] X: X-axis

[0123] Y: Y-axis

[0124] Z: Z-axis Detailed implementation manners

[0125] Many different implementation methods or examples are disclosed below to implement the different features provided. The following describes embodiments of specific components and their arrangements to illustrate the present disclosure. Of course, these embodiments are only for illustration and should not limit the scope of the present disclosure. For example, when it is mentioned in the specification that a first feature component is formed on a second feature component, it may include an embodiment where the first feature component and the second feature component are in direct contact, and may also include an embodiment where there are other features between the first feature component and the second feature component. In other words, the first feature component and the second feature component are not in direct contact.

[0126] In addition, repeated reference numerals or markings may be used in different embodiments. These repetitions are only for simply and clearly describing the present disclosure and do not represent a specific relationship between the different embodiments and / or structures discussed. In addition, forming, connecting to, and / or coupling to another feature component on another feature component in the present disclosure may include an embodiment where the feature components are formed in direct contact, and may also include an embodiment where additional feature components may be formed to insert between the above-mentioned feature components, such that the above-mentioned feature components may not be in direct contact. In addition, spatial-related terms may be used, such as "vertical", "above", "on", "under", "bottom" and similar terms (such as "downwardly", "upwardly", etc.). These spatial-related terms are used to facilitate the description of the relationship between one (or some) element or feature and another (or some) element or feature in the drawings. These spatial-related terms are intended to cover different orientations of the device including the features.

[0127] 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 to which this disclosure belongs. It is understood that these terms, such as those defined in a commonly used dictionary, should be interpreted to have a meaning consistent with the relevant technology and the background or context of the present disclosure, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0128] Furthermore, the ordinal numbers used in the description and claims, such as "first", "second", etc., are used to modify the elements of the claims. They do not inherently imply or represent that the claimed element has any previous ordinal number, nor do they represent the order of one claimed element and another, or the order in the manufacturing method. The use of multiple such ordinal numbers is only to clearly distinguish one claimed element with a certain name from another claimed element with the same name.

[0129] In addition, in some embodiments of the present disclosure, terms related to joining and connecting, such as "connect", "interconnect", etc., unless otherwise defined, may refer to two structures in direct contact, or may also refer to two structures not in direct contact, with other structures disposed therebetween. And such terms related to joining and connecting may also include the cases where both structures are movable, or both structures are fixed.

[0130] Please refer to Figures 1 to 3 , Figure 1 FIG. 100 is a perspective view of an optical element driving mechanism 100 according to an embodiment of the present disclosure. Figure 2 FIG. 100 is an exploded view of the optical element driving mechanism 100 according to an embodiment of the present disclosure, and Figure 3 FIG. 100 is a perspective view of a partial structure of the optical element driving mechanism 100 according to an embodiment of the present disclosure from another perspective. The optical element driving mechanism 100 may be an optical imaging module configured to carry and drive an optical element OE.

[0131] The optical element driving mechanism 100 can be installed in various electronic devices or portable electronic devices, such as being disposed in a smart phone for a user to perform an image capturing function. In this embodiment, the optical element driving mechanism 100 may be a voice coil motor (VCM) with an autofocus (AF) function, but the present disclosure is not limited thereto. In other embodiments, the optical element driving mechanism 100 may also have autofocus (AF) and optical image stabilization (OIS) functions.

[0132] As Figure 2 shown, the optical element driving mechanism 100 may include a fixed component FA, a movable component MA, and a driving component DA. The movable component MA is configured to connect the aforementioned optical element OE, and the movable component MA can move relative to the fixed component FA. The driving component DA is configured to drive the movable component MA to move relative to the fixed component FA.

[0133] In this embodiment, the fixed component FA includes a housing 102 and a base 112, and the housing 102 is fixedly connected to the base 112 along a main axis MX to form an accommodation space 1023 for accommodating the optical element OE. The housing 102 may have a first opening OP1, and when viewed along the main axis MX, the optical element OE is exposed from the first opening OP1. Among them, the optical element OE may be a reflecting prism, but is not limited thereto.

[0134] As Figure 1 shown in Figure 2 the figure, the housing 102 further has a second opening OP2, and when viewed along a first axial direction AX1, the optical element OE is exposed from the second opening OP2. The first opening OP1 is communicated with the second opening OP2, and an external light ray LT enters the first opening OP1 along an optical axis OX and then enters the optical element OE. After being reflected by a reflecting surface OES of the optical element OE, it is then emitted from the optical element OE and the second opening OP2 along the first axial direction AX1.

[0135] In this embodiment, the movable component MA may include a first movable part 108 and a second movable part 109. The first movable part 108 is movably connected to the second movable part 109, and the second movable part 109 is movably connected to the base 112.

[0136] Specifically, as Figure 2 shown in Figure 3 the figure, the optical element driving mechanism 100 may further include two first elastic elements 106 connected between the first movable part 108 and the second movable part 109. Each first elastic element 106 may have a first connection end 1061, a second connection end 1062, and a first flexible part 1063.

[0137] The first connection end 1061 is fixedly connected to the first movable part 108, the second connection end 1062 is fixedly connected to the second movable part 109, and the first flexible part 1063 is connected between the first connection end 1061 and the second connection end 1062.

[0138] Similarly, the optical element driving mechanism 100 further includes two second elastic elements 110 connected between the second movable part 109 and the base 112. Each second elastic element 110 has a third connection end 1101, a fourth connection end 1102, and a second flexible part 1103.

[0139] The third connection end 1101 is fixedly connected to the second movable part 109, the fourth connection end 1102 is fixedly connected to the base 112, and the second flexible part 1103 is connected between the third connection end 1101 and the fourth connection end 1102.

[0140] The first elastic element 106 and the second elastic element 110 may be elastic metal reeds, but are not limited thereto. Additionally, the number of the first elastic element 106 and the second elastic element 110 is not limited to this embodiment. It should be noted that the first elastic element 106 is located on a top surface TS of the movable assembly MA, and the second elastic element 110 is located on a rear side surface RS of the movable assembly MA.

[0141] Among them, as Figure 3 shown, the second connection end 1062 has a plate-like structure and is located in a first plane (such as the XY plane), and the third connection end 1101 has a plate-like structure and is located in a second plane (such as the XZ plane). In this embodiment, the first plane is not parallel to the second plane.

[0142] In addition, it should be noted that in Figure 3 , in order to clearly show the configuration of the first elastic element 106 and the second elastic element 110, the base 112 is represented by a dashed line, but it does not mean that the base 112 does not exist.

[0143] Next, please refer to Figure 2 , Figure 4 and Figure 5 . Figure 4 is a perspective view of a partial structure of the optical element driving mechanism 100 according to an embodiment of the present disclosure, and Figure 5 is a perspective view of the partial structure of the optical element driving mechanism 100 according to an embodiment of the present disclosure from another perspective. As Figure 2 shown, the optical element driving mechanism 100 further includes a first reinforcement member 107, which is partially embedded in the first movable portion 108.

[0144] As Figure 4 shown, the first reinforcement member 107 may have a reinforcement base YK0 and a first reinforcement structure YK1. The first reinforcement structure YK1 is fixedly connected to the reinforcement base YK0, and at least a part of the reinforcement base YK0 and the first reinforcement structure YK1 is disposed within the first movable portion 108.

[0145] As Figure 4 shown, when viewed along the first axial direction AX1, the reinforcement base YK0 is a rectangular frame structure and is embedded in the first movable portion 108. Since the first reinforcement member 107 may be made of a metal material, the reinforcement base YK0 can enhance the overall structural strength of the first movable portion 108.

[0146] Furthermore, as Figure 2 and Figure 4 shown, the driving assembly DA may include a first driving element MG1 and a first coil CL1. The first driving element MG1 is fixedly disposed at the bottom of the first movable portion 108.

[0147] Correspondingly, the optical element driving mechanism 100 may further include a circuit component 114, and the first coil CL1 is disposed on the circuit component 114. The circuit component 114 is, for example, a flexible circuit board (FPC board), but is not limited thereto.

[0148] In this embodiment, as Figure 4 shown, the first driving element MG1 is configured to induce with the first coil CL1 to generate a first electromagnetic driving force MF1 to drive the first movable part 108 to rotate relative to the second movable part 109 about a first rotation axis RX1. For example, the first movable part 108 can perform a pitching motion relative to the second movable part 109 and the base 112.

[0149] As Figure 4 and Figure 5 shown, the first driving element MG1 is disposed on the first strengthening structure YK1, and a part of the first strengthening structure YK1 is located between the first driving element MG1 and the first movable part 108.

[0150] It should be noted that, as Figure 5 shown, the first strengthening structure YK1 may have a first side portion YK11, a second side portion YK12, and a third side portion YK13, which are disposed on three sides of the first driving element MG1. Among them, the first side portion YK11 is adjacent to the second side portion YK12, and the second side portion YK12 is adjacent to the third side portion YK13.

[0151] Since the first strengthening member 107 may have magnetic permeability, based on the configuration of the first side portion YK11 to the third side portion YK13, the magnetic field strength of the first driving element MG1 can be increased, and a magnetic attraction force can be generated between the first driving element MG1 and the first strengthening structure YK1 to increase the convenience of mounting the first driving element MG1 on the first strengthening structure YK1 and the positioning accuracy.

[0152] Furthermore, as Figure 2 and Figure 4 shown, the optical element driving mechanism 100 may further include a first guiding element BG11 and a first guiding element BG12, which are disposed between the first movable part 108 and the second movable part 109 and are configured to guide the first movable part 108 to rotate about the first rotation axis RX1. Specifically, the first rotation axis RX1 is defined by the first guiding element BG11 and the first guiding element BG12, and the first rotation axis RX1 passes through the first guiding element BG11 and the first guiding element BG12.

[0153] Next, please refer to Figure 2 、Figure 4 , Figure 6 and Figure 7 . Figure 6 FIG. is a perspective sectional view of the optical element driving mechanism 100 along the line segment A-A in Figure 1 , and Figure 7 FIG. is a perspective enlarged view of a part of the structure of the optical element driving mechanism 100 according to an embodiment of the present disclosure. In this embodiment, the optical element driving mechanism 100 further includes a first plate body MP1, which is fixedly disposed on the second movable part 109. The first plate body MP1 is, for example, a metal sheet, but is not limited thereto.

[0154] The first plate body MP1 has a first notch MP11 configured to accommodate a part of the first guiding element BG11. As Figure 6 shown, a part of the first guiding element BG11 is accommodated in the first notch MP11.

[0155] Furthermore, as Figure 4 and Figure 6 shown, the first strengthening member 107 of the optical element driving mechanism 100 may further include two second strengthening structures YK2, which are partially disposed in the first movable part 108. The second strengthening structures YK2 are fixedly connected to the strengthening base YK0, and the strengthening base YK0 is connected between the two second strengthening structures YK2.

[0156] In this embodiment, the strengthening base YK0, the first strengthening structure YK1, and the second strengthening structure YK2 may be integrally formed, but are not limited thereto. Furthermore, the first strengthening member 107 may be a yoke, but is not limited thereto.

[0157] As Figure 4 and Figure 6 shown, each of the second strengthening structures YK2 may have a first contact portion YK21 configured to abut against the corresponding first guiding element. Among them, the first guiding element BG11 is clamped by the corresponding first contact portion YK21 and the first plate body MP1.

[0158] In this embodiment, the first plate body MP1 may be made of a metal material, and the first guiding element BG11 may be made of a ceramic material, but is not limited thereto. In this embodiment, the hardness of the first guiding element BG11 may be greater than the hardness of the first contact portion YK21 or the first plate body MP1. Based on such a configuration, the problem of particles generated by friction between the first guiding element BG11 and the first plate body MP1 can be avoided.

[0159] It should be noted that, in this embodiment, each of the second strengthening structures YK2 further has a first strengthening portion YK22, which is connected between the corresponding first contact portion YK21 and the strengthening base YK0.

[0160] As Figure 6 shown, when viewed along a second axial direction AX2, the first contact portion YK21 overlaps the first reinforcing portion YK22, and the second axial direction AX2 is perpendicular to the first axial direction AX1.

[0161] Since the first movable portion 108 can be made of a plastic material, based on such a configuration, the structural strength of the side of the first movable portion 108 can be enhanced to avoid the problem that the first guiding element BG11 damages the first movable portion 108 due to extrusion.

[0162] Next, as Figure 2 、 Figure 6 and Figure 7 shown, the optical element driving mechanism 100 further includes a biasing element 111 and a holding element 113. The first guiding element BG12 is located between the first movable portion 108 and the holding element 113, and the holding element 113 is located between the biasing element 111 and the first guiding element BG12.

[0163] The biasing element 111 is connected between the holding element 113 and the second movable portion 109, and the biasing element 111 is made of an elastic material, such as made of elastic metal, but not limited thereto. As Figure 7 shown, the biasing element 111 has a fifth connection end 1111, two sixth connection ends 1112, and a third flexible portion 1113.

[0164] The fifth connection end 1111 is fixedly connected to the holding element 113, the sixth connection ends 1112 are fixedly connected to the second movable portion 109, and the third flexible portion 1113 is connected between the fifth connection end 1111 and the sixth connection ends 1112.

[0165] As Figure 6 shown, the holding element 113 has a holding groove 1131 configured to accommodate at least a part of the first guiding element BG12. In this embodiment, the first guiding element BG12 is fixedly disposed on the first movable portion 108 and can move relative to the holding element 113 in the holding groove 1131.

[0166] As Figure 6 shown, in this embodiment, the biasing element 111 has a pre-pressure PF1 configured to drive the fifth connection end 1111 to drive the holding element 113 to push the first guiding element BG12 so that the first guiding element BG12 abuts against the first movable portion 108.

[0167] Next, please refer to Figure 2 、 Figure 8 and Figure 9 . Figure 8FIG. 0 is a perspective view of a partial structure of an optical element driving mechanism 100 according to an embodiment of the present disclosure, and Figure 9 FIG. 1 is a sectional view of the optical element driving mechanism 100 according to an embodiment of the present disclosure along Figure 1 section line B-B in FIG. It should be noted that in Figure 8 FIG. 1, in order to clearly show the internal structure, the second movable part 109 is represented by a dashed line, but it does not mean that the second movable part 109 does not exist.

[0168] In this embodiment, the driving assembly DA may further include a second driving element MG2, a third driving element MG3, a second coil CL2, and a third coil CL3. The second driving element MG2 and the third driving element MG3 are disposed on the second movable part 109. The second coil CL2 is disposed on the base 112. The second coil CL2 can be electrically connected to the circuit component 114 through a circuit structure (such as a metal wire, not shown in the figure) embedded and formed in the base 112, and the third coil CL3 is disposed on the circuit component 114.

[0169] Among them, the first driving element MG1, the second driving element MG2, and the third driving element MG3 may be magnets, such as multi-pole magnets, but are not limited thereto.

[0170] As Figure 8 shown, the optical element driving mechanism 100 may further include a second reinforcing member 115 disposed in the second movable part 109. The second reinforcing member 115 may include a third reinforcing structure YK3 and a fourth reinforcing structure YK4, which are partially disposed in the second movable part 109. The second driving element MG2 is disposed on the third reinforcing structure YK3, and a part of the third reinforcing structure YK3 is located between the second driving element MG2 and the second movable part 109.

[0171] Specifically, the third reinforcing structure YK3 has a fourth side portion YK31 disposed on one side of the second driving element MG2. The third reinforcing structure YK3 can be made of a metal material and has magnetic permeability, so that the second driving element MG2 can be accurately positioned on the second movable part 109.

[0172] Similarly, the third driving element MG3 is disposed on the fourth reinforcing structure YK4, and a part of the fourth reinforcing structure YK4 is located between the third driving element MG3 and the second movable part 109. The fourth reinforcing structure YK4 has a fifth side portion YK41 disposed on one side of the third driving element MG3.

[0173] Similarly, since the fourth strengthening structure YK4 can be made of a metallic material and has magnetic permeability, the third driving element MG3 can be accurately positioned on the second movable part 109.

[0174] As Figure 9 shown, the second movable part 109 has a first receiving groove RC1 and a second receiving groove RC2. Among them, the second driving element MG2 is received in the first receiving groove RC1 and abuts against the fourth side part YK31, and the third driving element MG3 is received in the second receiving groove RC2 and abuts against the fifth side part YK41.

[0175] Furthermore, the second strengthening member 115 of the optical element driving mechanism 100 may further include a fifth strengthening structure YK5, which is partially disposed in the second movable part 109, and the third strengthening structure YK3 and the fourth strengthening structure YK4 are fixedly connected to the fifth strengthening structure YK5.

[0176] In this embodiment, the fifth strengthening structure YK5 can be made of a metallic material, and the third strengthening structure YK3, the fourth strengthening structure YK4, and the fifth strengthening structure YK5 can be integrally formed, but are not limited thereto.

[0177] It is worth noting that, as Figure 9 shown, when observed along the main axis MX (Z-axis), the second movable part 109 has a U-shaped structure. Therefore, based on the configuration of the fifth strengthening structure YK5, the overall structural strength of the second movable part 109 can be increased, and the problem that the middle part of the second movable part 109 is damaged due to movement or impact can be avoided.

[0178] Next, as Figure 9 shown, the second driving element MG2 is configured to induce with the second coil CL2 to generate a second electromagnetic driving force MF2, and the third driving element MG3 is configured to induce with the third coil CL3 to generate a third electromagnetic driving force MF3, so that the second electromagnetic driving force MF2 and the third electromagnetic driving force MF3 can jointly drive the first movable part 108 and the second movable part 109 to rotate around a second rotation axis RX2 relative to the base 112.

[0179] Among them, the directions of the second electromagnetic driving force MF2 and the third electromagnetic driving force MF3 are opposite. For example, when the second electromagnetic driving force MF2 is toward the -Y axis, the third electromagnetic driving force MF3 is toward the +Y axis. Therefore, the second electromagnetic driving force MF2 and the third electromagnetic driving force MF3 can jointly drive the second movable part 109 and the first movable part 108 to rotate counterclockwise around the second rotation axis RX2.

[0180] Conversely, when the second electromagnetic driving force MF2 is oriented towards the +Y axis, the third electromagnetic driving force MF3 is oriented towards the -Y axis. Therefore, the second electromagnetic driving force MF2 and the third electromagnetic driving force MF3 can jointly drive the second movable part 109 and the first movable part 108 to rotate clockwise around the second rotation axis RX2.

[0181] Among them, as Figure 8 shown, the first rotation axis RX1 is perpendicular to the second rotation axis RX2, the first rotation axis RX1 is perpendicular to the first axial direction AX1, and the second rotation axis RX2 can be parallel to the main axis MX (Z axis), but is not limited thereto.

[0182] Please refer to Figure 2 、 Figure 8 、 Figures 10 to 11 。 Figure 10 FIG. is an exploded view of a partial structure of the optical element driving mechanism 100 according to an embodiment of the present disclosure, and Figure 11 FIG. is an exploded view of a partial structure of the optical element driving mechanism 100 according to an embodiment of the present disclosure from another perspective. In this embodiment, the optical element driving mechanism 100 may further include a second guiding element BG21 and a second guiding element BG22, which are disposed between the second movable part 109 and the base 112 and are configured to guide the second movable part 109 and the first movable part 108 to rotate around the second rotation axis RX2.

[0183] As Figure 8 and Figure 10 shown, the second rotation axis RX2 is defined by the second guiding element BG21 and the second guiding element BG22, and the second rotation axis RX2 passes through the second guiding element BG21 and the second guiding element BG22. Furthermore, the optical element driving mechanism 100 further includes a second plate body MP2, which is fixedly disposed on the base 112.

[0184] As Figure 10 shown, when viewed along a second axial direction AX2, the second guiding element BG21 and the second guiding element BG22 are located between the second movable part 109 and the second plate body MP2.

[0185] As Figure 8 shown, in the direction of the second axial direction AX2, there is a first distance DS1 between the first guiding element BG11 and the first guiding element BG12, and in the direction of the main axis MX, there is a second distance DS2 between the second guiding element BG21 and the second guiding element BG22, and the second distance DS2 is different from the first distance DS1. In this embodiment, the second distance DS2 is less than the first distance DS1.

[0186] As Figure 10 and Figure 11As shown, the second plate body MP2 has a second notch MP21 and a third notch MP22, configured to respectively accommodate a part of the second guiding element BG21 and the second guiding element BG22.

[0187] Correspondingly, the fifth strengthening structure YK5 has a second contact portion YK51 and a third contact portion YK52, configured to respectively abut against the second guiding element BG21 and the second guiding element BG22.

[0188] Specifically, the second guiding element BG21 is clamped by the second contact portion YK51 and the second plate body MP2, and the second guiding element BG22 is clamped by the third contact portion YK52 and the second plate body MP2.

[0189] As Figure 10 shown, the base 112 has a back plate 112BP and a convex portion 112C, and the convex portion 112C protrudes from the back plate 112BP along the first axial direction AX1 towards the second movable portion 109. The optical element driving mechanism 100 may further include an attracting element ACE, which is fixedly disposed in the convex portion 112C. Among them, the attracting element ACE is made of a magnetic material, for example, a magnet, but is not limited thereto.

[0190] Furthermore, as Figure 10 and Figure 11 shown, the second plate body MP2 further has a fourth notch MP23, which communicates with the second notch MP21. As Figure 10 shown, when observed along the first axial direction AX1, the attracting element ACE overlaps with the fourth notch MP23. Specifically, when observed along the first axial direction AX1, the attracting element ACE is exposed from the fourth notch MP23.

[0191] Furthermore, as Figure 10 and Figure 11 shown, the second notch MP21 has a first limiting surface FP1 and a second limiting surface FP2, configured to limit the movement of the second guiding element BG21 along the first axial direction AX1 and the second axial direction AX2.

[0192] In this embodiment, as Figure 10 shown, when observed along the first axial direction AX1, the first limiting surface FP1 may be parallel to the second limiting surface FP2, but is not limited thereto. The first limiting surface FP1 and the second limiting surface FP2 may be plane surfaces or arc surfaces, but are not limited thereto.

[0193] Similarly, the third notch MP22 has a third limiting surface FP3, a fourth limiting surface FP4 and a fifth limiting surface FP5, configured to limit the movement of the second guiding element BG22 along the first axial direction AX1, the second axial direction AX2 and the main axis MX.

[0194] In this embodiment, as Figure 10 shown, when viewed along the first axial direction AX1, the third limiting surface FP3 is not parallel to the fourth limiting surface FP4, and when viewed along the first axial direction AX1, the fourth limiting surface FP4 is not parallel to the fifth limiting surface FP5.

[0195] In this embodiment, as Figure 10 and Figure 11 shown, when viewed along the first axial direction AX1, the third limiting surface FP3, the fourth limiting surface FP4, and the fifth limiting surface FP5 can form a triangle, but not limited thereto.

[0196] Next, please refer to Figure 2 、 Figures 10 to 12 . Figure 12 FIG. C-C of the optical element driving mechanism 100 according to an embodiment of the present disclosure along the Figure 1 line segment C-C. In this embodiment, the first movable portion 108 has a first accommodation space AS1, a part of the second movable portion 109 is located in the first accommodation space AS1, and a part of the convex portion 112C is located in the first accommodation space AS1.

[0197] Furthermore, in this embodiment, the fifth reinforcing structure YK5 can be made of a magnetically conductive material, and the fifth reinforcing structure YK5 can further have a bending structure YK53 located between the second contact portion YK51 and the third contact portion YK52.

[0198] As Figure 10 and Figure 11 shown, the fifth reinforcing structure YK5 can further have a reinforcing body YK50 connected between the third reinforcing structure YK3 and the fourth reinforcing structure YK4, and the bending structure YK53 is formed by bending the reinforcing body YK50.

[0199] As Figure 11 shown, the bending structure YK53 is bent from the reinforcing body YK50 toward the fourth notch MP23, and when viewed along the first axial direction AX1, a part of the bending structure YK53 is exposed by the second movable portion 109.

[0200] Furthermore, as Figure 12 shown, when viewed along the second axial direction AX2, a part of the bending structure YK53 does not overlap with the second contact portion YK51 or the third contact portion YK52.

[0201] Based on such a configuration, the attracting element ACE can be configured to generate a magnetic attraction force ACF with the bending structure YK53, and the magnetic attraction force ACF is parallel to the first axial direction AX1.

[0202] The magnetic suction ACF is configured to drive the fifth reinforcement structure YK5 to drive the second movable part 109 to closely abut against the base 112, so that the fifth reinforcement structure YK5 and the second plate body MP2 jointly clamp the second guiding element BG21 and the second guiding element BG22.

[0203] In this embodiment, as Figure 12 shown, when viewed along the second axis AX2, a part of the second guiding element BG21 is located in the fourth notch MP23. When viewed along the second axis AX2, the second notch MP21 and the fourth notch MP23 have a first length LH1.

[0204] When viewed along the second axis AX2, the third notch MP22 has a second length LH2, and the first length LH1 is greater than the second length LH2. Based on such a configuration, it is possible to avoid the situation where the second guiding element BG21 and the second guiding element BG22 cannot be accurately clamped between the fifth reinforcement structure YK5 and the second plate body MP2 due to tolerance problems.

[0205] In addition, it is worth noting that, as Figure 12 shown, the first movable part 108 and the optical element OE can jointly have a center of gravity GTY, and when viewed along the second axis AX2, the center of gravity GTY and the first rotation axis RX1 are on the same side of the reflection surface OES ( Figure 12 the upper left side in

[0206] Since the center of gravity GTY is closer to the first rotation axis RX1, the moment generated by the center of gravity GTY relative to the first rotation axis RX1 is smaller, so the first movable part 108 can be more stable when rotating around the first rotation axis RX1.

[0207] Furthermore, as Figure 2 shown, the circuit assembly 114 can have a first circuit part 1141 and a second circuit part 1142, and the first circuit part 1141 is connected to the second circuit part 1142. Correspondingly, the optical element driving mechanism 100 can further include a first reinforcement plate body STP1, fixedly connected to the second circuit part 1142. The first reinforcement plate body STP1 can be made of a metal material and is configured to strengthen the structural strength of the second circuit part 1142.

[0208] Similarly, as Figure 2 and Figure 12 shown, the optical element driving mechanism 100 can further include a second reinforcement plate body STP2, disposed at the bottom of the base 112, and the first circuit part 1141 is disposed on the second reinforcement plate body STP2.

[0209] Next, please refer to Figure 13 . Figure 13The figure is a top view of a partial structure of an optical element driving mechanism 100 according to an embodiment of the present disclosure. To ensure the stability of the first movable part 108 and the second movable part 109 during movement, and to prevent the first movable part 108 or the second movable part 109 from hitting the base 112 when the optical element driving mechanism 100 is impacted, the optical element driving mechanism 100 may further include two bonding elements GEL1 disposed between the second movable part 109 and the base 112.

[0210] In this embodiment, the bonding element GEL1 may be made of an elastic material. The bonding element GEL1 is, for example, a gel, but is not limited thereto. It should be noted that the bonding element GEL1 is not disposed between the first movable part 108 and the second movable part 109.

[0211] In addition, as Figure 13 shown, the two bonding elements GEL1 in this embodiment are symmetrically arranged left and right, for example, symmetric with respect to the first axis AX1 (central axis), and the optical element OE is located between the two bonding elements GEL1. Based on such an arrangement, the stability of the first movable part 108 and the second movable part 109 during movement can be increased.

[0212] The present disclosure provides an optical element driving mechanism 100, which may be a periscope lens mechanism, including a fixed assembly FA, a movable assembly MA, and a driving assembly DA. The movable assembly MA includes a first movable part 108 and a second movable part 109. The first movable part 108 is movably connected to the second movable part 109 through a first elastic element 106, and the second movable part 109 is movably connected to the base 112 of the fixed assembly FA through a second elastic element 110.

[0213] The optical element driving mechanism 100 may further include a first guiding element BG11 and a first guiding element BG12 disposed between the first movable part 108 and the second movable part 109. The optical element driving mechanism 100 may further include a biasing element 111 and a holding element 113. The holding element 113 is configured to hold the first guiding element BG12. A part of the biasing element 111 is fixed to the second movable part 109, and another part of the biasing element 111 is fixed to the holding element 113.

[0214] The biasing element 111 is made of an elastic material and is configured to provide a pre-pressure PF1 to drive the holding element 113 to push the first guiding element BG12 so that the first guiding element BG12 abuts against the first movable part 108. Based on such an arrangement, the first guiding element BG11 and the first guiding element BG12 can be surely positioned between the first movable part 108 and the second movable part 109, so that the first movable part 108 can stably rotate relative to the second movable part 109 about the first rotation axis RX1.

[0215] Although the embodiments of the present disclosure and their advantages have been disclosed above, it should be understood that those skilled in the art can make changes, substitutions, and modifications without departing from the spirit and scope of the present disclosure. In addition, the protection scope of the present disclosure is not limited to the processes, machines, manufactures, compositions of matter, devices, methods, and steps in the specific embodiments described in the specification. Any person skilled in the art can understand the processes, machines, manufactures, compositions of matter, devices, methods, and steps developed currently or in the future from the disclosure content of the present disclosure. As long as they can perform substantially the same functions or achieve substantially the same results in the embodiments described herein, they can be used according to the present disclosure. Therefore, the protection scope of the present disclosure includes the above-mentioned processes, machines, manufactures, compositions of matter, devices, methods, and steps. In addition, each claim constitutes an individual embodiment, and the protection scope of the present disclosure also includes the combination of each claim and embodiment.

Claims

1. An optical element driving mechanism, comprising: a fixing component; a movable component configured to connect to an optical element and movable relative to the fixed component; and a driving assembly configured to drive the movable assembly to move relative to the fixed assembly; The fixing assembly includes a containing space configured to accommodate the optical element.

2. The optical element driving mechanism according to claim 1, wherein The fixing assembly includes a housing and a base; The housing is fixedly connected to the base along a main axis; The housing has a first opening, and when viewed along the major axis, the optical element is exposed from the first opening; The housing also has a second opening, and when viewed along a first axial direction, the optical element is exposed from the second opening; The first opening is connected to the second opening; An external light is incident on the first opening along an optical axis and then enters the optical element, and then is emitted from the optical element and the second opening along the first axis; The movable assembly includes a first movable part and a second movable part; The first movable part is movably connected to the second movable part; The second movable portion is movably connected to the base; The optical element driving mechanism further includes a first elastic element connected between the first movable portion and the second movable portion; The first elastic element has a first connecting end, a second connecting end and a first flexible portion; The first connection end is fixedly connected to the first movable portion, the second connection end is fixedly connected to the second movable portion, and the first flexible portion is connected between the first connection end and the second connection end; The optical element driving mechanism further includes a second elastic element connected between the second movable portion and the base; The second elastic element has a third connecting end, a fourth connecting end and a second flexible portion; The third connection end is fixedly connected to the second movable portion, the fourth connection end is fixedly connected to the base, and the second flexible portion is connected between the third connection end and the fourth connection end; The first elastic element is located on a top surface of the movable component; The second elastic element is located on a rear side of the movable component; The second connecting end has a plate-like structure and is located on a first plane; The third connecting end has a plate-like structure and is located on a second plane; The first plane is not parallel to the second plane.

3. The optical element driving mechanism according to claim 2, wherein The driving assembly includes a first driving element and a first coil; The first driving element is disposed on the first movable portion; The optical element driving mechanism further comprises a circuit assembly, and the first coil is arranged on the circuit assembly; The first driving element is configured to induce the first coil to generate a first electromagnetic driving force to drive the first movable part to rotate around a first rotation axis relative to the second movable part; The driving assembly also includes a second driving element, a third driving element, a second coil and a third coil; The second driving element and the third driving element are disposed on the second movable portion; The second coil is disposed on the base; The third coil is disposed on the circuit component; The second driving element is configured to induce the second coil to generate a second electromagnetic driving force, and the third driving element is configured to induce the third coil to generate a third electromagnetic driving force, so that the second electromagnetic driving force and the third electromagnetic driving force jointly drive the first movable part and the second movable part to rotate relative to the base around a second rotation axis; The first rotation axis is perpendicular to the second rotation axis; The first rotation axis is perpendicular to the first axial direction; The second rotation axis is parallel to the main axis.

4. The optical element driving mechanism according to claim 3, wherein The optical element driving mechanism also includes a reinforcing base and a first reinforcing structure; The first reinforcement structure is fixedly connected to the reinforcement base; The reinforcement base and at least a portion of the first reinforcement structure are disposed within the first movable portion; The first driving element is disposed on the first reinforcing structure, and a portion of the first reinforcing structure is located between the first driving element and the first movable portion; The first reinforcing structure has a first side portion, a second side portion and a third side portion, and is disposed on three sides of the first driving element; The first side portion is adjacent to the second side portion, and the second side portion is adjacent to the third side portion; The optical element driving mechanism further includes two first guiding elements, disposed between the first movable portion and the second movable portion, and configured to guide the first movable portion to rotate around the first rotation axis; The first rotating shaft passes through the two first guiding elements; The optical element driving mechanism also includes a first plate body fixedly disposed on the second movable portion; The first plate has a first recess configured to accommodate a corresponding portion of the first guiding element; The optical element driving mechanism further includes two second reinforcing structures, which are partially disposed in the first movable portion; Each of the two second reinforcement structures has a first contact portion configured to abut against the corresponding first guiding element; The first guiding element is clamped by the corresponding first contact portion and the first plate; Each of the second reinforcement structures also has a first reinforcement portion connected between the corresponding first contact portion and the reinforcement base; When viewed along a second axial direction, the first contact portion overlaps the first reinforcement portion; The second axial direction is perpendicular to the first axial direction.

5. The optical element driving mechanism according to claim 4, wherein The optical element driving mechanism also includes a force applying element and a holding element; The corresponding first guiding element is located between the first movable portion and the holding element; The holding element is located between the force applying element and the corresponding first guiding element; The force-applying element is connected between the holding element and the second movable portion; The force applying element is made of elastic material; The force applying element has a fifth connecting end, a sixth connecting end and a third flexible portion; The fifth connection end is fixedly connected to the holding element, the sixth connection end is fixedly connected to the second movable portion, and the third flexible portion is connected between the fifth connection end and the sixth connection end; The holding element has a holding groove configured to accommodate at least a portion of the corresponding first guide element; The force-applying element has a pre-pressure, and is configured to drive the fifth connection end to drive the holding element to push the corresponding first guiding element, so that the first guiding element abuts against the first movable portion.

6. The optical element driving mechanism according to claim 5, wherein The optical element driving mechanism further includes a third strengthening structure and a fourth strengthening structure, which are partially disposed in the second movable portion; The second driving element is disposed on the third reinforcing structure, and a portion of the third reinforcing structure is located between the second driving element and the second movable portion; The third reinforcement structure has a fourth side portion disposed on one side of the second driving element; The third driving element is disposed on the fourth reinforcing structure, and a portion of the fourth reinforcing structure is located between the third driving element and the second movable portion; The fourth reinforcement structure has a fifth side portion disposed on one side of the third driving element; The second movable portion has a first accommodating groove and a second accommodating groove; The second driving element is accommodated in the first accommodating groove and abuts against the fourth side portion; The third driving element is accommodated in the second accommodating groove and abuts against the fifth side portion.

7. The optical element driving mechanism according to claim 6, wherein The optical element driving mechanism further includes two second guiding elements, which are disposed between the second movable portion and the base and are configured to guide the second movable portion and the first movable portion to rotate around the second rotation axis; The second rotating shaft passes through the two second guiding elements; The optical element driving mechanism also includes a second plate body fixedly disposed on the base; When viewed along the second axial direction, the two second guide elements are located between the second movable portion and the second plate; In the second axial direction, there is a first distance between the two first guide elements; In the direction of the main axis, there is a second distance between the two second guiding elements; The second distance is different from the first distance; The second distance is smaller than the first distance.

8. The optical element driving mechanism according to claim 7, wherein The optical element driving mechanism further includes a fifth reinforcing structure partially disposed in the second movable portion; The third reinforcement structure and the fourth reinforcement structure are fixedly connected to the fifth reinforcement structure; The third reinforcement structure, the fourth reinforcement structure and the fifth reinforcement structure are integrally formed; The second plate has a second notch and a third notch, configured to respectively accommodate a portion of the two second guide elements; The fifth reinforcement structure has a second contact portion and a third contact portion, configured to abut against the two second guiding elements respectively; One of the two second guiding elements is clamped by the second contact portion and the second plate; The other of the two second guiding elements is clamped by the third contact portion and the second plate; The first movable part has a first accommodating space, and a part of the second movable part is located in the first accommodating space; The base has a back plate and a convex portion, and the convex portion protrudes from the back plate along the first axial direction toward the second movable portion; A portion of the protrusion is located in the first accommodating space; The optical element driving mechanism further includes an attraction element fixedly disposed on the convex portion; The attracting element is made of magnetic material; The fifth reinforcement structure is made of a magnetically conductive material; The fifth reinforcement structure further has a bending structure located between the second contact portion and the third contact portion; When viewed along the second axial direction, a portion of the bent structure does not overlap the second contact portion or the third contact portion; The attraction element is configured to generate a magnetic attraction force with the bending structure, and the magnetic attraction force is parallel to the first axial direction; The magnetic attraction force is configured to drive the fifth reinforcement structure to drive the second movable portion to move toward the base, so that the fifth reinforcement structure and the second plate body clamp the two second guiding elements together.

9. The optical element driving mechanism according to claim 8, wherein The second plate body also has a fourth notch connected to the second notch; When viewed along the first axial direction, the attraction element overlaps the fourth recess; When viewed along the first axial direction, the attraction element is exposed from the fourth recess; The second recess has a first limiting surface and a second limiting surface, configured to limit the movement of the corresponding second guide element along the first axial direction and the second axial direction; When viewed along the first axial direction, the first limiting surface is parallel to the second limiting surface; The third recess has a third limiting surface, a fourth limiting surface and a fifth limiting surface, configured to limit the movement of the corresponding second guide element along the first axial direction, the second axial direction and the main axis; When viewed along the first axial direction, the third limiting surface is not parallel to the fourth limiting surface; When viewed along the first axial direction, the fourth limiting surface is not parallel to the fifth limiting surface; When viewed along the first axial direction, the third limiting surface, the fourth limiting surface and the fifth limiting surface form a triangle.

10. The optical element driving mechanism according to claim 9, wherein When viewed along the second axial direction, a corresponding portion of the second guide element is located in the fourth recess; When viewed along the second axial direction, the second notch and the fourth notch have a first length; When viewed along the second axial direction, the third recess has a second length; The first length is greater than the second length; The fifth reinforcement structure also has a reinforcement body connected between the third reinforcement structure and the fourth reinforcement structure; The bending structure is formed by bending the strengthening body; The bending structure is bent from the reinforcing body toward the fourth notch; When viewed along the first axial direction, a portion of the bent structure is exposed from the second movable portion.

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