Optical element driving mechanism

Abstract

The invention provides an optical element driving mechanism. The optical element driving mechanism comprises a movable part, a fixed part and a driving assembly, the movable part is used for connecting an optical element and can move relative to the fixed part. The driving assembly is used for driving the movable part to move.

Description

Technical Field

[0001] The present invention relates to an optical element driving mechanism, and more specifically, to an optical element driving mechanism for driving an optical element to move. Background Art

[0002] With the development of technology, many electronic devices (such as tablet computers and smart phones) now have the function of taking photos or recording videos. These electronic devices are becoming more and more popular and are developing in the direction of convenient and lightweight designs to provide users with more choices. Summary of the invention

[0003] An object of the present invention is to provide an optical element driving mechanism to solve at least one of the above problems.

[0004] The present invention provides an optical element driving mechanism, comprising a movable part, a fixed part and a driving assembly. The movable part is used to connect an optical element and can move relative to the fixed part. The driving assembly is used to drive the movable part to move.

[0005] In some embodiments, the optical element driving mechanism may further include a supporting assembly, through which the movable part moves relative to the fixed part. The aforementioned supporting assembly includes a first intermediate element, a first corresponding element, a first force-applying element, and a first stabilizing element. The first corresponding element contacts the first intermediate element, and the first intermediate element and the first corresponding element can move relative to each other. The first stabilizing force is generated by the first force-applying element and the first stabilizing element and applied to the movable part. When observed along a main axis, the fixed part has a polygonal structure, and the first intermediate element is located on a first side of the fixed part. When observed along the main axis, the first intermediate element is adjacent to a first corner of the fixed part, and the distance between the first stabilizing element and the first corner is smaller than the distance between the first intermediate element and the first corner. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 FIG. 4 is a schematic diagram of an electronic device having an optical element driving mechanism according to an embodiment of the present invention.

[0007] Figure 2 is a schematic diagram of an optical element driving mechanism in an embodiment of the present invention.

[0008] Figure 3 FIG. 4 is an exploded view of an optical element driving mechanism in an embodiment of the present invention.

[0009] Figure 4 for Figure 2 Cross-sectional view along the AA direction.

[0010] Figure 5AFIG. 4 is a schematic diagram of a movable part, a first coil and a second coil in one embodiment of the present invention.

[0011] Figure 5B Schematic diagram of a movable part, a first coil, a second coil, a first intermediate element, a first force-applying element, and a reference element in one embodiment of the present invention.

[0012] Figure 6 for Figure 2 Cross-sectional view along direction BB.

[0013] Figure 7 FIG. 1 is a top view of an optical element driving mechanism in an embodiment of the present invention, wherein the outer frame is omitted.

[0014] Figure 8 is a schematic diagram of an optical element driving mechanism in another embodiment of the present invention.

[0015] The reference numerals are as follows:

[0016] 10: Optical element drive mechanism

[0017] 20: Electronic devices

[0018] 30: Optical components

[0019] 100:Fixed part

[0020] 101: First side

[0021] 102: Second side

[0022] 103: Third side

[0023] 104: Fourth side

[0024] 110: Outer frame

[0025] 111: Top wall

[0026] 112: Side wall

[0027] 113: Soft cushion

[0028] 120: Base

[0029] 200: Activities Department

[0030] 300: Drive components

[0031] 310: first magnetic element

[0032] 320: Second magnetic element

[0033] 340: First coil

[0034] 350: Second coil

[0035] 360: Magnetic element

[0036] 400:Support components

[0037] 410: First intermediary element

[0038] 420: first corresponding element

[0039] 421: First Correspondence

[0040] 422: Second corresponding part

[0041] 423: first recessed portion

[0042] 424: first accommodation portion

[0043] 430: first force applying element

[0044] 440: First stabilizing element

[0045] 450: Second intermediary element

[0046] 460: Second corresponding element

[0047] 470: Second force applying element

[0048] 480: Second stabilizing element

[0049] 491: Second recessed portion

[0050] 492: Second accommodating portion

[0051] 500: Position sensing component

[0052] 510: Sensing element

[0053] 520: Reference element

[0054] 530: third recessed portion

[0055] 540: Third accommodating portion

[0056] 600: Stop assembly

[0057] 610:First body

[0058] 611: first surface

[0059] 611A: First depression

[0060] 612: Second surface

[0061] 612A: Second depression

[0062] 613: Fifth Surface

[0063] 614: Seventh Surface

[0064] 620: Second Body

[0065] 621: Third surface

[0066] 622: Fourth Surface

[0067] 623: Sixth Surface

[0068] 624: Eighth Surface

[0069] 630: Stopper

[0070] 640: Strengthening Department

[0071] 641: Containment

[0072] 700: Connecting element

[0073] 800: Elastic component

[0074] 810: first elastic element

[0075] 811: first fixing portion connection end

[0076] 812: first movable part connection end

[0077] 813: First chord segment

[0078] 820: second elastic element

[0079] 821: Second fixing portion connection end

[0080] 822: Second movable part connection end

[0081] 823: Second chord segment

[0082] 830: third elastic element

[0083] 831: Third fixing portion connection end

[0084] 832: Third active part connection end

[0085] 833: Third chord segment

[0086] 840: fourth elastic element

[0087] 841: Fourth fixing portion connection end

[0088] 842: Fourth activity part connection end

[0089] 843: Fourth chord segment

[0090] 900: Elastic component

[0091] 910: Elastic element

[0092] AX: spindle

[0093] C1: First corner

[0094] C2: Second Corner

[0095] C3: The third corner

[0096] C4: The fourth corner

[0097] D1: The shortest distance between the first surface and the third surface

[0098] D2: The shortest distance between the second surface and the fourth surface

[0099] F1: The first stable force

[0100] F2: Second stabilizing force

[0101] G1: First gap

[0102] G2: Second gap

[0103] M: Optical module

[0104] M1: Optical unit

[0105] M2: Drive unit

[0106] M21: First drive unit

[0107] M22: Second drive unit DETAILED DESCRIPTION

[0108] The following describes the optical element driving mechanism of the embodiment of the present invention. However, it can be easily understood that the embodiment of the present invention provides many suitable inventive concepts and can be implemented in a wide variety of specific backgrounds. The specific embodiments disclosed are only used to illustrate the use of the present invention in a specific way, and are not intended to limit the scope of the present invention.

[0109] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings 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 commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and the present disclosure, and should not be interpreted in an idealized or overly formal manner unless specifically defined herein.

[0110] First see Figure 1The optical element driving mechanism 10 of one embodiment of the present invention can be installed in an electronic device 20, and is used to carry and drive an optical element 30, so that the optical element 30 can move relative to a photosensitive element (not shown) in the electronic device 20, thereby achieving the purpose of focusing, zooming and / or optical image stabilization (OIS). The electronic device 20 can be, for example, a smart phone, a tablet computer, or a digital camera, and the optical element 30 can be, for example, a lens having multiple lenses, but is not limited thereto.

[0111] Figure 2 is a schematic diagram of the aforementioned optical element driving mechanism 10, and Figure 3 FIG. 1 is an exploded view of the aforementioned optical element driving mechanism 10. Figure 2 and Figure 3 As shown, the optical element driving mechanism 10 may mainly include a fixed portion 100 , a movable portion 200 and a driving assembly 300 .

[0112] The fixed part 100 may include an outer frame 110 and a base 120, which may be joined to each other to form a hollow box body, and the aforementioned movable part 200 and driving assembly 300 may be accommodated in this hollow box body. The outer frame 110 may include a top wall 111 and a plurality of side walls 112 connected to the top wall 111. One or more soft pads 113 may be attached to the outer surface of the side wall 112 to prevent the optical element driving mechanism 10 from colliding with other elements in the electronic device 20 and being damaged when the electronic device 20 shakes. When observed along the main axis AX of the optical element driving mechanism 10 (i.e., the optical axis of the optical element 30, which is parallel to the Z axis in the accompanying drawings), the fixed part 100 may have a polygonal structure.

[0113] In the present embodiment, when viewed along the main axis AX of the optical element driving mechanism 10, the fixing portion 100 may have a rectangular structure, which may include a first side 101, a second side 102, a third side 103, and a fourth side 104. The first side 101 is opposite to the second side 102, the third side 103 and the fourth side 104 are located between the first side 101 and the second side 102, and the third side 103 is opposite to the fourth side 104. The connection between the first side 101 and the third side 103 may form a first corner C1, the connection between the first side 101 and the fourth side 104 may form a second corner C2, the connection between the second side 102 and the third side 103 may form a third corner C3, and the connection between the second side 102 and the fourth side 104 may form a fourth corner C4.

[0114] The movable portion 200 can be used to connect the optical element 30, and can be movably connected to the fixed portion 100. In this embodiment, the movable portion 200 can move along the main axis AX relative to the fixed portion 100. In some embodiments, the movable portion 200 can also move along a direction perpendicular to the main axis AX relative to the fixed portion 100.

[0115] The driving assembly 300 can drive the movable part 200 to move relative to the fixed part 100. In detail, in this embodiment, the driving assembly 300 may include a first magnetic element 310, a second magnetic element 320, a first coil 340 and a second coil 350. The first magnetic element 310 and the second magnetic element 320 are fixed to the base 120 or the side wall 112 of the fixed part 100, and are respectively located on the third side 103 and the fourth side 104 of the fixed part 100. The first coil 340 and the second coil 350 are disposed on the movable part 200, and correspond to the first magnetic element 310 and the second magnetic element 320, respectively.

[0116] When current flows into the first coil 340, an electromagnetic force may be generated between the first coil 340 and the first magnetic element 310 to push the movable part 200 to move along the main axis AX relative to the fixed part 100. Similarly, when current flows into the second coil 350, an electromagnetic force may be generated between the second coil 350 and the second magnetic element 320 to push the movable part 200 to move along the main axis AX relative to the fixed part 100. Therefore, the purpose of zooming, focusing and / or optical image stabilization can be achieved.

[0117] In this embodiment, the driving component 300 may also include a magnetic conductive element 360, which may be embedded in the side wall 112 of the fixed portion 100, and may cover other surfaces of the first magnetic element 310 except for the surface facing the first coil 340 and other surfaces of the second magnetic element 320 except for the surface facing the second coil 350, so as to enhance the driving force that the driving component 300 can provide.

[0118] Figure 4 for Figure 2 The cross-sectional view along the AA direction. Figures 2 to 4 As shown, in this embodiment, the optical element driving mechanism 10 may include a supporting assembly 400, which may include a first intermediate element 410, a first corresponding element 420, a first force element 430, a first stabilizing element 440, a second intermediate element 450, a second corresponding element 460, a second force element 470 and a second stabilizing element 480.

[0119] The first intermediate element 410, the first corresponding element 420, the first force-applying element 430 and the first stabilizing element 440 are disposed on the first side 101 of the fixed portion 100 and may be adjacent to the first corner C1 of the fixed portion 100. The first intermediate element 410 may be a cylinder fixed to the base 120, and its long axis extends in a direction parallel to the main axis AX. The first corresponding element 420 may be a groove formed on the surface of the movable portion 200 facing the side wall 112, and the first intermediate element 410 may be accommodated in and in contact with the first corresponding element 420, and may move relative to the first corresponding element 420.

[0120] The first force-applying element 430 and the first stabilizing element 440 are respectively disposed on the movable portion 200 and the fixed portion 100, and a first stabilizing force F1 can be generated between the two and applied to the movable portion 200. For example, the first force-applying element 430 can be a magnet, and the first stabilizing element 440 can include a ferromagnetic material, so that the magnetic attraction between the first force-applying element 430 and the first stabilizing element 440 can be used as the aforementioned first stabilizing force F1, so that the movable portion 200 approaches the first intermediate element 410, ensuring that the first intermediate element 410 can contact the first corresponding element 420.

[0121] In some embodiments, the first stabilizing element 440 may be a magnet, and the first force applying element 430 may include a ferromagnetic material. In some embodiments, the first force applying element 430 and the first stabilizing element 440 may be magnets that attract each other.

[0122] In this embodiment, when viewed along the main axis AX, the first stabilizing element 440 is closer to the first corner C1 than the first intermediate element 410. That is, the distance between the first stabilizing element 440 and the first corner C1 is smaller than the distance between the first intermediate element 410 and the first corner C1.

[0123] The second intermediate element 450, the second corresponding element 460, the second force-applying element 470, and the second stabilizing element 480 are disposed on the second side 102 of the fixed portion 100 and may be adjacent to the fourth corner C4 of the fixed portion 100. The second intermediate element 450 may be a cylinder fixed to the base 120, and its long axis extends in a direction parallel to the main axis AX. The second corresponding element 460 may be a groove formed on the surface of the movable portion 200 facing the side wall 112, and the second intermediate element 450 may be accommodated in the second corresponding element 460 and contact the second corresponding element 450, and may move relative to the second corresponding element 460.

[0124] The second force-applying element 470 and the second stabilizing element 480 are respectively disposed on the movable portion 200 and the fixed portion 100, and a second stabilizing force F2 can be generated between the two and applied to the movable portion 200. For example, the second force-applying element 470 can be a magnet, and the second stabilizing element 480 can include a ferromagnetic material, so that the magnetic attraction between the second force-applying element 470 and the second stabilizing element 480 can be used as the aforementioned second stabilizing force F2, so that the movable portion 200 approaches the second intermediary element 450, ensuring that the second intermediary element 450 can contact the second corresponding element 460.

[0125] In some embodiments, the second stabilizing element 480 may be a magnet, and the second force applying element 470 may include a ferromagnetic material. In some embodiments, the second force applying element 470 and the second stabilizing element 480 may be magnets that attract each other.

[0126] In this embodiment, when viewed along the main axis AX, the second stabilizing element 480 is closer to the fourth corner C4 than the second intermediate element 450. That is, the distance between the second stabilizing element 480 and the fourth corner C4 is smaller than the distance between the second intermediate element 450 and the fourth corner C4.

[0127] Through the supporting assembly 400 , when the driving assembly 300 drives the movable portion 200 to move relative to the fixed portion 100 , the movable portion 200 can be guided by the first intermediate element 410 and the second intermediate element 450 to move along the main axis AX, thereby improving the stability of the movement of the movable portion 200 .

[0128] In addition, it should be particularly noted that, when observed along the main axis AX, the first corresponding element 420 and the second corresponding element 460 have a V-shaped structure and a U-shaped structure respectively, which can facilitate the installation of the optical element driving mechanism 10.

[0129] like Figure 5A and Figure 5B As shown, in this embodiment, the first corresponding element 420 may include a first corresponding portion 421, a second corresponding portion 422, a first recessed portion 423, and a first accommodating portion 424. The first recessed portion 423 is located between the first corresponding portion 421 and the second corresponding portion 422, and the first accommodating portion 424 is formed in the first recessed portion 423 and is therefore also located between the first corresponding portion 421 and the second corresponding portion 422. When the movable portion 200 is connected to the fixed portion 100 via the supporting assembly 400, the first corresponding portion 421 and the second corresponding portion 422 may contact the first intermediate element 410, and a distance may be spaced between the first recessed portion 423 and the first intermediate element 410.

[0130] The first receiving portion 424 may have a recessed structure or an open structure. The lead wire 341 of the first coil 340 may extend along the surface of the movable portion 200 facing the side wall 120 and may be received in the first receiving portion 424. Therefore, when the movable portion 200 moves along the first intermediate element 410, the lead wire 341 of the first coil 340 will not interfere with the first intermediate element 410, thereby preventing the lead wire 341 of the first coil 340 from being damaged.

[0131] Similarly, the support assembly 400 may have a second recessed portion 491 and a second accommodating portion 492 formed on the movable portion 200. At least a portion of the first force applying element 430 may be accommodated in the second recessed portion 491. The second accommodating portion 492 is formed in the second recessed portion 491 and may have a recessed structure or an open structure. The lead wire 341 of the first coil 340 may be accommodated in the second accommodating portion 492 to prevent the lead wire 341 of the first coil 340 from being damaged.

[0132] See also Figures 2 to 5B In this embodiment, the optical element driving mechanism 10 may include a position sensing component 500. The position sensing component 500 may include a sensing element 510, a reference element 520, a third recessed portion 530 and a third receiving portion 540.

[0133] The sensing element 510 may be connected to the fixed part 100, and the reference element 520 may be disposed on the movable part 200. The sensing element 510 may confirm the position of the movable part 200 relative to the fixed part 100 by detecting the movement of the reference element 520. For example, the sensing element 510 may be a Hall effect sensor, a magnetoresistance effect sensor (MR Sensor), a giant magnetoresistance effect sensor (GMR Sensor), a tunneling magnetoresistance effect sensor (TMR Sensor), or a fluxgate sensor, and the reference element 520 may be a magnet, but is not limited thereto.

[0134] The third recessed portion 530 is formed on the movable portion 200, and at least a portion of the reference element 520 can be accommodated in the third recessed portion 530. The third accommodation portion 540 is formed in the third recessed portion 530 and can have a recessed structure or an open structure. The lead wire 341 of the first coil 340 can be accommodated in the third accommodation portion 540 to prevent the lead wire 341 of the first coil 340 from being damaged.

[0135] In this embodiment, the first intermediate element 410 is disposed between the position sensing component 500 and the first force applying element 430, and the first force applying element 430 is closer to the first corner C1 than the position sensing component 500. In other words, the first accommodation portion 424 may be located between the second accommodation portion 492 and the third accommodation portion 540, and the distance between the first force applying element 430 and the first corner C1 is smaller than the distance between the position sensing component 500 and the first corner C1.

[0136] In some embodiments, the positions of the sensing element 510 and the reference element 520 may be interchanged with each other, that is, the sensing element 510 may be disposed on the movable portion 200 , and the reference element 520 may be correspondingly disposed on the fixed portion 100 .

[0137] Figure 6 for Figure 2 The cross-sectional view along the BB direction. Figure 2 , Figure 3 and Figure 6 As shown, in this embodiment, the optical element driving mechanism 10 may include at least one stopper assembly 600 to limit the motion range of the movable portion 200. Specifically, the stopper assembly 600 may include a first body 610, a second body 620, a stopper portion 630 and a reinforcing portion 640.

[0138] The first body 610 may be a part of the base 120, and may include plastic, for example, but is not limited thereto. The first body 610 may include a first surface 611 facing the movable portion 200 and a second surface 612 facing the opposite direction. A first recess 611A may be formed on the first surface 611, and a second recess 612A may be formed on the second surface 612, and the first recess 611A and the second recess 612A may be connected to each other.

[0139] The second body 620 may be accommodated in the first recess 611A and the second recess 612A, and may protrude from the first surface 611 of the first body 610. For example, the second body 620 may include a soft material (such as rubber, silicone or foam, but not limited thereto), so its Young's modulus may be smaller than that of the first body 610.

[0140] The stopper 630 may be a portion of the movable portion 200 corresponding to the second body 620. When the driving assembly 300 drives the movable portion 200 to move toward the base 120 to an extreme position, the stopper 630 may contact the second body 620. Therefore, the stopper assembly 600 may limit the range of motion of the movable portion 200 and avoid collision between the movable portion 200 and the fixed portion 100.

[0141] The reinforcing portion 640 may be embedded in the base 120 and may include a receiving portion 641. The position of the receiving portion 641 may correspond to the position of the first recess 611A and the second recess 612A, so that at least a portion of the receiving portion 641 may be exposed by the first recess 611A and the second recess 612A. The receiving portion 641 may have an opening structure, and at least a portion of the second body 620 may be disposed in the opening structure of the receiving portion 641. The reinforcing portion 640 may include metal, so its Young's modulus may be greater than that of the first body 610 and the second body 620. Furthermore, at least a portion of the reinforcing portion 640 may be embedded in the first body 610, and at least a portion of the reinforcing portion 640 may be embedded in the second body 620. Therefore, through the above configuration, the positioning of the second body 620 can be strengthened to prevent the second body 620 from being displaced after the stopper 630 contacts the second body 620.

[0142] In this embodiment, the second body 620 has a third surface 621 and a fourth surface 622, wherein the third surface 621 and the first surface 611 face the same direction, and the fourth surface 622 and the second surface 612 face the same direction. In a direction perpendicular to the first surface 611 (i.e., a direction parallel to the main axis AX), the shortest distance D1 between the first surface 611 and the third surface 621 is smaller than the shortest distance D2 between the second surface 612 and the fourth surface 622.

[0143] In addition, in this embodiment, the second body 620 does not contact the first body 610, and the gap between the first body 610 and the second body 620 on the opposite side of the reinforcing portion 640 is different. In detail, the first body 610 may have a fifth surface 613, and the second body 620 may have a sixth surface 623. The fifth surface 613 and the sixth surface 623 face each other, and the sixth surface 623 is connected to the third surface 621 (that is, the fifth surface 613 and the sixth surface 623 are located above the reinforcing portion 640). A first gap G1 may be formed between the fifth surface 613 and the sixth surface 623. The first body 610 may further have a seventh surface 614, and the second body 620 may further have an eighth surface 624. The seventh surface 614 and the eighth surface 624 face each other, and the eighth surface 624 is connected to the fourth surface 622 (that is, the seventh surface 614 and the eighth surface 624 are located below the reinforcing portion 640). A second gap G2 may be formed between the seventh surface 614 and the eighth surface 624 , and the second gap G2 may be different from the first gap G1 . For example, the second gap G2 may be larger than the first gap G1 .

[0144] In some embodiments, the reinforcing portion 640 may also be electrically connected to the driving component 300 and / or the position sensing component 500 to transmit current or signals.

[0145] like Figure 6As shown, in this embodiment, the optical element driving mechanism 10 may further include at least one connecting element 700, which is disposed in the second recess 612A and directly contacts the first body 610, the second body 620 and the reinforcing portion 640. The connecting element 700 may be, for example, a non-conductive light-curing colloid or a heat-curing colloid, and when cured, it may be flush with the second surface 612, so as to avoid defects in the optical element driving mechanism 10 caused by the heat expansion of the air in the second recess 612A during the assembly process.

[0146] Please also read Figure 2 , Figure 3 as well as Figure 7 In this embodiment, the optical element driving mechanism 10 may further include an elastic component 800, which may connect the fixed portion 100 and the movable portion 200 to suspend the movable portion 200 in the hollow box of the fixed portion 100, and may be electrically connected to the driving component 300. The elastic component 800 may include a first elastic element 810, a second elastic element 820, a third elastic element 830, and a fourth elastic element 840.

[0147] The first elastic element 810 has a first fixed portion connection end 811, a first movable portion connection end 812, and a first string segment 813. The first fixed portion connection end 811 is fixed to the fixed portion 100 at the first side 101, the first movable portion connection end 812 is adjacent to the third side 103 and fixed to the movable portion 200, and the first string segment 813 connects the first fixed portion connection end 811 and the first movable portion connection end 812. When viewed along the main axis AX, the first fixed portion connection end 811 does not overlap with the support assembly 400 and the position sensing assembly 500, and the first movable portion connection end 812 does not overlap with the driving assembly 300.

[0148] The second elastic element 820 has a second fixed portion connection end 821, a second movable portion connection end 822, and a second string segment 823. The second fixed portion connection end 821 is fixed to the fixed portion 100 at the first side 101, the second movable portion connection end 822 is adjacent to the fourth side 104 and fixed to the movable portion 200, and the second string segment 823 connects the second fixed portion connection end 821 and the second movable portion connection end 822. When viewed along the main axis AX, the second fixed portion connection end 821 does not overlap with the support assembly 400 and the position sensing assembly 500, and the second movable portion connection end 822 does not overlap with the driving assembly 300.

[0149] The third elastic element 830 has a third fixed portion connection end 831, a third movable portion connection end 832, and a third string segment 833. The third fixed portion connection end 831 is fixed to the fixed portion 100 at the second side 102, the third movable portion connection end 832 is adjacent to the third side 103 and fixed to the movable portion 200, and the third string segment 833 connects the third fixed portion connection end 831 and the third movable portion connection end 832. When viewed along the main axis AX, the third fixed portion connection end 831 does not overlap with the support assembly 400, and the third movable portion connection end 832 does not overlap with the driving assembly 300.

[0150] The fourth elastic element 840 has a fourth fixed portion connection end 841, a fourth movable portion connection end 842, and a fourth string segment 843. The fourth fixed portion connection end 841 is fixed to the fixed portion 100 at the second side 102, the fourth movable portion connection end 842 is adjacent to the fourth side 104 and fixed to the movable portion 200, and the fourth string segment 843 connects the fourth fixed portion connection end 841 and the fourth movable portion connection end 842. When viewed along the main axis AX, the fourth fixed portion connection end 841 does not overlap with the support assembly 400, and the fourth movable portion connection end 842 does not overlap with the driving assembly 300.

[0151] It should be particularly noted that the first movable part connection end 812, the second movable part connection end 822, the third movable part connection end 832 and the fourth movable part connection end 842 can each be electrically connected to the first coil 340 and / or the second coil 350 on the movable part 200, and the first elastic element 810, the second elastic element 820, the third elastic element 830 and the fourth elastic element 840 can be electrically independent of each other.

[0152] Furthermore, in this embodiment, the length of the first string segment 813 may be the same as that of the fourth string segment 843 , the length of the second string segment 823 may be the same as that of the third string segment 833 , and the length of the first string segment 813 is different from that of the second string segment 823 .

[0153] The elastic element 800 is connected to the movable part 200 and the fixed part 100 on the upper side of the movable part 200. Figure 3 In this embodiment, the optical element driving mechanism 10 may further include an elastic component 900 , and the elastic component 900 may connect the movable part 200 and the fixed part 100 at the lower side of the movable part 200 .

[0154] The elastic assembly 900 may include two elastic elements 910 , which are respectively connected to the movable portion 200 and the fixed portion 100 at the first side 101 and the second side 102 . Similarly, the elastic element 910 may also be electrically connected to the driving assembly 300 and / or the reinforcing portion 640 .

[0155] See also Figure 8 In another embodiment of the present invention, the optical element driving mechanism 10 may further include an optical module M, which is disposed on the movable part 200 and / or the fixed part 100, and includes an optical unit M1 and at least one driving unit M2. The aforementioned optical unit M1 may be, for example, an aperture, a filter, a lens, or a photosensitive element. The driving unit M2 may drive the optical unit M1 to move, rotate and / or deform. In this embodiment, the driving unit M2 may include a first driving unit M21 and a second driving unit M22, which are respectively disposed on the first side 101 and the second side 102. When observed along the main axis AX, the first driving unit M21 and the second driving unit M22 are respectively located at the second corner C2 and the third corner C3, and the first driving unit M21 does not overlap with the first force element 430, the first stabilizing element 440 and the position sensing component 500, and the second driving unit M22 does not overlap with the second force element 470 and the second stabilizing element 480.

[0156] The first driving unit M21 and the second driving unit M22 may be, for example, electromagnetic motors or piezoelectric motors, but are not limited thereto.

[0157] In summary, the present invention provides an optical element driving mechanism, comprising a movable portion, a fixed portion and a driving assembly. The movable portion is used to connect an optical element and can move relative to the fixed portion. The driving assembly is used to drive the movable portion to move.

[0158] In addition, the aforementioned optical element driving mechanism may further include a supporting assembly, through which the movable part moves relative to the fixed part. The aforementioned supporting assembly includes a first intermediate element, a first corresponding element, a first force-applying element, and a first stabilizing element. The first corresponding element contacts the first intermediate element, and the first intermediate element and the first corresponding element can move relative to each other. The first stabilizing force is generated by the first force-applying element and the first stabilizing element and applied to the movable part. When observed along a main axis, the fixed part has a polygonal structure, and the first intermediate element is located on a first side of the fixed part. When observed along the main axis, the first intermediate element is adjacent to a first corner of the fixed part, and the distance between the first stabilizing element and the first corner is smaller than the distance between the first intermediate element and the first corner.

[0159] Although the embodiments of the present invention and their advantages have been disclosed as above, it should be understood that those skilled in the art may make changes, substitutions and modifications without departing from the spirit and scope of the present invention. In addition, the scope of protection of the present invention is not limited to the processes, machines, manufactures, material compositions, devices, methods and steps in the specific embodiments described in the specification. Any technician in the relevant technical field can understand the current or future developed processes, machines, manufactures, material compositions, devices, methods and steps from the disclosure of the present invention. As long as they can implement substantially the same functions or obtain substantially the same results in the embodiments described herein, they can all be used according to the present invention. Therefore, the scope of protection of the present invention includes the above-mentioned processes, machines, manufactures, material compositions, devices, methods and steps. In addition, each claim constitutes a separate embodiment, and the scope of protection of the present invention also includes the combination of each claim and embodiment.

[0160] Although the present invention is disclosed as above with several preferred embodiments, they are not intended to limit the present invention. A person skilled in the art of the present invention may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the attached claims. In addition, each claim constitutes an independent embodiment, and the combination of various claims and embodiments is within the scope of the present invention.

Claims

1. An optical element driving mechanism, comprising: A movable portion, used to connect an optical element; a fixed portion, wherein the movable portion is movable relative to the fixed portion; as well as A driving assembly is used to drive the movable part to move.

2. The optical element driving mechanism as claimed in claim 1, wherein the optical element driving mechanism further comprises a supporting assembly, the movable portion moves relative to the fixed portion via the supporting assembly, and the supporting assembly comprises: a first intermediary element; a first corresponding element contacting the first intermediate element, wherein the first intermediate element and the first corresponding element are movable relative to each other; a first force applying element; as well as a first stabilizing element, wherein a first stabilizing force is generated by the first force-applying element and the first stabilizing element and applied to the movable portion, When viewed along a main axis, the fixing portion has a polygonal structure, and the first intermediate element is located on a first side of the fixing portion. When viewed along the main axis, the first intermediate element is adjacent to a first corner of the fixing portion, and a distance between the first stabilizing element and the first corner is smaller than a distance between the first intermediate element and the first corner.

3. An optical element driving mechanism as described in claim 2, wherein the optical element driving component further includes a position sensing component for sensing the movement of the movable part, wherein when observed along the main axis, the position sensing component is located on the first side, the first intermediate element is located between the position sensing component and the first force-applying element, and the distance between the first force-applying element and the first corner is smaller than the distance between the position sensing component and the first corner.

4. The optical element driving mechanism as claimed in claim 3, wherein the first corresponding element comprises: a first corresponding portion directly contacting the first intermediate element; a second corresponding portion directly contacting the first intermediate element; a first recessed portion formed between the first corresponding portion and the second corresponding portion; as well as a first accommodating portion for accommodating a lead of the driving component, wherein the first accommodating portion has a recessed structure or an opening structure and is formed in the first recessed portion, The first recessed portion is located between the first corresponding portion and the second corresponding portion.

5. An optical element driving mechanism as described in claim 4, wherein the supporting component further comprises a second recessed portion and a second accommodating portion, the second recessed portion being used to accommodate at least a portion of the first force-applying element or at least a portion of the first stabilizing element, and the second accommodating portion being formed in the second recessed portion and being used to accommodate a lead of the driving component.

6. The optical element driving mechanism as claimed in claim 5, wherein the position sensing component comprises: a reference element; a sensing element, sensing the position of the reference element; a third recessed portion for accommodating at least a portion of the sensing element or at least a portion of the reference element; as well as A third accommodating portion is formed in the third recessed portion and is used to accommodate a lead of the driving component, wherein when viewed along the main axis, the first accommodating portion is located between the second accommodating portion and the third accommodating portion.

7. The optical element driving mechanism as claimed in claim 2, wherein the optical element driving mechanism further comprises an optical module disposed on the movable portion, the optical module comprising an optical unit and a driving portion, the driving portion drives the optical unit to move by electromagnetic force, wherein: When viewed along the main axis, the driving portion and the first force-applying element do not overlap. When viewed along the main axis, the driving portion does not overlap with the first stabilizing element, When viewed along the main axis, a first driving unit of the driving portion is located at the first side, and the first driving unit is located at a second corner of the fixing portion.

8. The optical element driving mechanism as described in claim 2, wherein the supporting assembly further comprises a second intermediate element and a second corresponding element, the second corresponding element contacts the second intermediate element, and the second intermediate element and the second corresponding element can move relative to each other.

9. The optical element driving mechanism as claimed in claim 2, wherein the optical element driving mechanism further comprises a stop assembly for limiting the range of motion of the movable portion, and the stop assembly comprises: a stopper; a first body, wherein the first body is movable relative to the stopper; a reinforcing portion, disposed on the first body and having a receiving portion, wherein the receiving portion has an opening structure; and a second body, wherein at least a portion of the second body is located in the opening structure of the receiving portion, wherein: When the movable portion is located at an extreme position, the stopper contacts the second body. The Young's modulus of the reinforcement portion is different from the Young's modulus of the first body, The Young's modulus of the reinforcement portion is greater than the Young's modulus of the first body, The Young's modulus of the reinforcement portion is different from the Young's modulus of the second body, The Young's modulus of the reinforcement portion is greater than the Young's modulus of the second body, The Young's modulus of the first body is different from the Young's modulus of the second body, The Young's modulus of the first body is greater than the Young's modulus of the second body, At least a portion of the reinforcement portion is buried in the first body, At least a portion of the reinforcement portion is buried in the second body, The first body has a first surface and a second surface, and the first surface and the second surface face different directions. The first surface has a first recess, and at least a portion of the receiving portion is exposed from the first recess. The second surface has a second recess, and at least a portion of the receiving portion is exposed from the second recess. The second body has a third surface and a fourth surface, the third surface and the first surface face the same direction, and the fourth surface and the second surface face the same direction, In a direction perpendicular to the first surface, the shortest distance between the first surface and the third surface is different from the shortest distance between the second surface and the fourth surface, In a direction perpendicular to the first surface, the shortest distance between the first surface and the third surface is smaller than the shortest distance between the second surface and the fourth surface, The third surface is not accommodated in the first recess, The first body further has a fifth surface, and the second body further has a sixth surface. The fifth surface faces the second body, and the sixth surface faces the first body. A first gap is formed between the fifth surface and the sixth surface. The first body further has a seventh surface, and the second body further has an eighth surface, the seventh surface faces the second body, and the eighth surface faces the first body, a second gap is formed between the seventh surface and the eighth surface, and the first gap is different from the second gap, The first surface faces the movable portion. 10 . The optical element driving mechanism as claimed in claim 9 , further comprising a connecting element disposed in the second recess, and the connecting element directly contacts the first body, the second body and the strengthening portion.

11. The optical element driving mechanism as claimed in claim 2, wherein the fixing portion further comprises a second side, a third side and a fourth side, the second side is opposite to the first side, the third side and the fourth side are located between the first side and the second side, and the third side is opposite to the fourth side, wherein the optical element driving mechanism further comprises an elastic component, comprising: a first elastic element having a first fixed portion connection end, a first movable portion connection end, and a first string segment, wherein the first fixed portion connection end is connected to the fixed portion at the first side, the first movable portion connection end is connected to the movable portion and is adjacent to the third side, and the first string segment connects the first fixed portion connection end and the first movable portion connection end; a second elastic element having a second fixed portion connection end, a second movable portion connection end, and a second string segment, wherein the second fixed portion connection end is connected to the fixed portion at the first side, the second movable portion connection end is connected to the movable portion and is adjacent to the fourth side, and the second string segment connects the second fixed portion connection end and the second movable portion connection end; a third elastic element having a third fixed portion connection end, a third movable portion connection end, and a third string segment, wherein the third fixed portion connection end is connected to the fixed portion at the second side, the third movable portion connection end is connected to the movable portion and is adjacent to the third side, and the third string segment connects the third fixed portion connection end and the third movable portion connection end; and a fourth elastic element, having a fourth fixed portion connection end, a fourth movable portion connection end, and a fourth string segment, wherein the fourth fixed portion connection end is connected to the fixed portion at the second side, the fourth movable portion connection end is connected to the movable portion and is adjacent to the fourth side, and the fourth string segment connects the fourth fixed portion connection end and the fourth movable portion connection end, wherein: The first movable part connection end, the second movable part connection end, the third movable part connection end and the fourth movable part connection end are electrically connected to the driving assembly, and the first elastic element, the second elastic element, the third elastic element and the fourth elastic element are electrically independent of each other. The length of the first chord segment is different from the length of the second chord segment, the length of the first chord segment is different from the length of the third chord segment, and the length of the third chord segment is different from the length of the fourth chord segment.

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