Optical element drive mechanism

Abstract

Provided is an optical element driving mechanism for rotationally driving an optical element. 【Solution means】The optical element driving mechanism 10A includes a movable part 200 to which an optical element is connected, a fixed part 100, and a drive assembly 300. The movable part can move relative to the fixed part, and the drive assembly drives the movable part to move.

Description

Technical Field

[0001] The present invention relates to an optical element driving mechanism, and more particularly to an optical element driving mechanism for rotationally driving an optical element.

Background Art

[0002] Many optical elements need to be combined with a mechanism that can rotate or move them during use, such as a stabilizer or a rotating platform, to control the orientation of the optical element. However, existing mechanisms cannot effectively drive the optical element in a power-saving and stable manner at the same time. Therefore, how to solve the above problems has become an important issue.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Provide an optical element driving mechanism for rotationally driving an optical element.

Means for Solving the Problems

[0004] The present invention provides an optical element driving mechanism including a movable part, a fixed part, and a driving assembly. The movable part is used to connect the 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 aforementioned driving assembly includes a piezoelectric module, a support element, and a pressing element. The piezoelectric module is disposed on the fixed part. The support element is connected to the piezoelectric module. The pressing element is connected to the support element and provides a thrust force towards the movable part to the support element.

[0006] In some embodiments, the aforementioned pressing element includes a spring, which includes a first fixed section, a second fixed section, and a string. The first fixed section is connected to the surface of the supporting element. The second fixed section is connected to the fixing part. The string is connected to the first fixed section and the second fixed section. When viewed along the direction parallel to the aforementioned surface, at least a part of the string overlaps with the supporting element. When viewed along the direction perpendicular to the aforementioned surface, the string and the supporting element do not overlap.

[0007] In some embodiments, the aforementioned second fixed section has a first hole, a second hole, a third hole, and a fourth hole, and the fixing part has a first convex part, a second convex part, a third convex part, and a fourth convex part. The first convex part, the second convex part, the third convex part, and the fourth convex part penetrate through the first hole, the second hole, the third hole, and the fourth hole respectively. The size of the first hole is equal to the size of the first convex part, the size of the second hole is larger than the size of the second convex part, the size of the third hole is larger than the size of the third convex part, and the size of the fourth hole is larger than the size of the fourth convex part.

[0008] In some embodiments, the maximum distance between the aforementioned second convex part and the inner wall of the second hole is smaller than the maximum distance between the fourth convex part and the inner wall of the fourth hole, and the maximum distance between the third convex part and the inner wall of the third hole is smaller than the maximum distance between the fourth convex part and the inner wall of the fourth hole.

[0009] In some embodiments, the lines connecting the centers of the first hole, the second hole, the third hole, and the fourth hole form a virtual quadrilateral, and the first hole and the fourth hole are located at the diagonals of the virtual quadrilateral.

[0010] In some embodiments, the aforementioned fourth hole has an elliptical structure, and the major axis of the elliptical structure is parallel to the line connecting the centers of the fourth hole and the second hole, or the line connecting the centers of the fourth hole and the third hole.

[0011] In some embodiments, the aforementioned first fixed section is located within the virtual quadrilateral.

[0012] In some embodiments, the aforementioned fixing portion includes a stopper block, the piezoelectric module is disposed between the aforementioned surface and the stopper block, and the piezoelectric module and the support element are in contact with the stopper block.

[0013] In some embodiments, the aforementioned second fixing section is connected to the connection surface of the fixing portion, and there is a distance between the connection surface and the surface in a direction perpendicular to the aforementioned surface.

[0014] In some embodiments, the aforementioned surface is inclined with respect to the connection surface.

[0015] In some embodiments, when viewed along a direction parallel to the aforementioned surface, the chord is inclined with respect to the aforementioned surface.

[0016] In some embodiments, the aforementioned pressing element includes a first magnetic element and a second magnetic element. The first magnetic element is disposed on the support element, and the second magnetic element is disposed on the fixing portion and corresponds to the first magnetic element.

[0017] In some embodiments, the aforementioned piezoelectric module includes a non-ferromagnetic material.

[0018] In some embodiments, the aforementioned support element includes a guide convex portion protruding from a side surface of the support element, the fixing portion includes a guide concave groove, and the guide convex portion is slidably disposed in the guide concave groove. The guide convex portion includes a first side and a second side, the second side is connected to the bottom surface of the guide convex portion, an obtuse angle is formed between the second side and the aforementioned bottom surface, and the first side is connected to the second side.

[0019] In some embodiments, the length of the aforementioned first side is different from the length of the second side.

[0020] In some embodiments, a rounded corner portion is formed between the aforementioned first side and the second side, and there is a gap between the aforementioned rounded corner portion and the inner wall of the guide concave groove.

[0021] In some embodiments, the aforementioned pressing element includes a spherical body, a first concave groove, and a second concave groove. The first concave groove is formed on the supporting element. The second concave groove is formed on the fixing portion. The spherical body is accommodated in the first concave groove and the second concave groove, and the first concave groove and the second concave groove are displaced from each other.

[0022] In some embodiments, the aforementioned driving assembly includes a flexible element accommodated in the first concave groove or the second concave groove.

[0023] In some embodiments, the aforementioned spherical body contacts the first concave groove at at least three contact points and contacts the second concave groove at at least three contact points.

Brief Description of the Drawings

[0024] Embodiments of the present invention will be better understood based on the following detailed description and the accompanying drawings. It should be noted that, in accordance with standard industry practice, the various features in the drawings are not necessarily drawn to scale. In fact, for clarity of illustration, the dimensions of the various features can be arbitrarily enlarged or reduced.

Figure 1A

Figure 1B

Figure 1C

Figure 1D

Figure 1E

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Figure 2B

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Figure 3B

Figure 3C

Embodiments for Carrying Out the Invention

[0025] Hereinafter, the optical element driving mechanism of the embodiment of the present invention will be described. However, it will be easily understood that the embodiments of the present invention provide many suitable creative concepts and can be implemented in various specific situations. The disclosed specific embodiments are only intended to illustrate the use of the present invention in a specific way and are not intended to limit the scope of the present invention.

[0026] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. As will be understood, terms defined in commonly used dictionaries should be interpreted as having meanings that conform to the related technology of the present invention and the background or context, and should not be interpreted in an idealized or overly formal manner unless otherwise defined.

[0027] The following disclosure in this specification describes specific examples of each component and its arrangement method for the purpose of simplifying the description. Of course, these specific examples are not intended to limit the present invention. For example, when the following disclosure in this specification describes forming the first characteristic component on or above the second characteristic component, it means that it may include an embodiment in which the above-mentioned first characteristic component and the second characteristic component are in direct contact, and it also means that it may include an embodiment in which an additional characteristic component is formed between the above-mentioned first characteristic component and the above-mentioned second characteristic component so that the above-mentioned first characteristic component and the above-mentioned second characteristic component are not in direct contact. Further, for the sake of conveniently explaining the relationship between a certain feature and another feature in the drawings, spatially related terms such as "lower", "below", "under", "upper", "above", and similar terms can be used. In addition to the directions depicted in the figures, spatially related terms include different directions of the device during use or operation. The above-mentioned device can also be positioned otherwise (rotated 90 degrees or in other directions) and can be interpreted according to the spatially related descriptions used here.

[0028] First, as shown in FIGS. 1A to 1D, the optical element driving mechanism 10A of an embodiment of the present invention mainly includes a fixed part 100, a movable part 200, and a driving assembly 300. The fixed part 100 can include a base 110 and a shaft 120. The shaft 120 is connected to the base 110 and protrudes from the upper surface 111 of the base 110. The movable part 200 is disposed on the upper surface 111 of the base 110 and includes an annular structure surrounding the shaft 120. The driving assembly 300 is disposed on the base 110 and is located on one side of the movable part 200. The driving assembly 300 can provide a driving force to the movable part 200 to enable the movable part 200 to rotate around the shaft 120. When an external optical element (not shown) is connected to the movable part 200 and the driving assembly 300 rotationally drives the movable part 200, the optical element can also be rotationally driven accordingly.

[0029] For example, the aforementioned optical element can include, but is not limited to, an imaging element (e.g., a camera), a photosensitive element, a sensing element (e.g., an infrared sensor), and / or a display element (e.g., a display).

[0030] The drive assembly 300 can include a piezoelectric module 310, a support element 320, and a pressurizing element 330. As shown in FIG. 1E, the piezoelectric module 310 can include a deformation element 311, a piezoelectric element 312, and a contact element 313. The deformation element 311 can include a flexible material and can include a plurality of main portions P1 and a plurality of sub-main portions P2. The main portion P1 surrounds the piezoelectric element 312, and the sub-main portion P2 connects adjacent main portions P1. In a direction parallel to the rotation axis of the movable portion 200, the thickness of the sub-main portion P2 is smaller than the thickness of the main portion P1.

[0031] Both ends of the piezoelectric element 312 are respectively connected to two main portions P11, P12 located on the opposite sides of the support element 320, and the contact element 313 can be disposed on one of the main portions P12 to which the piezoelectric element 312 is connected. When the drive assembly 300 is disposed on the fixed portion 100, the contact element 313 can contact the movable portion 200. When an electric current flows through the piezoelectric element 312, the length of the piezoelectric element 312 changes, and the deformation element 311 deforms. Accordingly, the contact element 313 disposed on the deformation element 311 moves, whereby the movable portion 200 can be moved and the movable portion 200 can be rotated with respect to the fixed portion 100.

[0032] As shown in FIGS. 1A to 1D, the piezoelectric module 310 can be connected to the support element 320, and the piezoelectric module 310 is fixed to the fixing portion 100 by the support element 320. Specifically, the support element 320 has an L-shaped structure and can contact two adjacent surfaces S1 and S2 of the main portion P11 connected to the piezoelectric element 312. The fixing portion 100 has a stopper block 130 protruding from the upper surface 111 of the base 110. The user can pass a locking element K (for example, a screw) through the support element 320 and the main portion P11 of the deformation element 311 and couple the locking element K to the stopper block 130. In this way, the support element 320 and the piezoelectric element 312 can be fixed to the fixing portion 100. In this embodiment, since the support element 320 has an L-shaped structure, the support element 320 and the piezoelectric module 310 can contact the stopper block 130 simultaneously.

[0033] In some embodiments, the locking element K can be omitted, and the support element 320 and the piezoelectric module 310 can be pressed against the stopper block 130 by the thrust provided by the pressing element 330.

[0034] The pressing element 330 is used to maintain the contact between the contact element 313 of the piezoelectric module 310 and the movable portion 200. In this embodiment, the pressing element 330 includes a spring having a first fixing section 331, a second fixing section 332, and a plurality of strings 333. The first fixing section 331 is fixed to the surface 321 of the support element 320, the second fixing section 332 is fixed to the connection surface 101 of the fixing portion 100, the strings 333 are connected to the first fixing section 331 and the second fixing section 332, the surface 321 of the support element 320 faces away from the piezoelectric module 310, and the connection surface 101 and the surface 321 face the same direction.

[0035] In this embodiment, the second fixed section 332 has two separate units 332A and 332B, and the first fixed section 331 is located between the aforementioned unit 332A and unit 332B. The unit 332A of the second fixed section 332 can have a first hole H1 and a second hole H2, and the unit 332B of the second fixed section 332 can have a third hole H3 and a fourth hole H4. The centers of the first hole H1, the second hole H2, the third hole H3, and the fourth hole H4 can form a virtual quadrilateral Q. The first hole H1 and the fourth hole H4 are located at the diagonals of the virtual quadrilateral Q, the second hole H2 and the third hole H3 are located at the diagonals of the virtual quadrilateral Q, and the first fixed section 331 is located within the virtual quadrilateral Q.

[0036] The fixing part 100 includes a first convex part R1, a second convex part R2, a third convex part R3, and a fourth convex part R4, and penetrates through the first hole H1, the second hole H2, the third hole H3, and the fourth hole H4 on the second fixed section 332 respectively. In particular, the size of the first hole H1 is approximately equal to the size of the first convex part R1, the size of the second hole H2 is larger than the size of the second convex part R2, the size of the third hole H3 is larger than the size of the third convex part R3, and the size of the fourth hole H4 is larger than the size of the fourth convex part R4. In this embodiment, the sizes of the first convex part R1, the second convex part R2, the third convex part R3, and the fourth convex part R4 are approximately the same.

[0037] The maximum distance between the fourth convex part R4 and the inner wall of the fourth hole H4 is larger than the maximum distance between the second convex part R2 and the inner wall of the second hole H2, and larger than the maximum distance between the third convex part R3 and the inner wall of the third hole H3. In this embodiment, the fourth hole H4 has an elliptical structure, and the major axis of this elliptical structure is parallel to the line connecting the centers of the second convex part R2 and the fourth convex part R4. In some embodiments, the major axis of the elliptical structure can be parallel to the line connecting the centers of the third convex part R3 and the fourth convex part R4.

[0038] Due to the arrangement of the aforementioned first hole H1, second hole H2, third hole H3, and fourth hole H4, it becomes easier to install the pressurizing element 330, and the manufacturing speed and yield of the optical element driving mechanism 10A can be improved.

[0039] As shown in FIG. 1C, in the direction perpendicular to the surface 321 of the support element 320, there is a distance D between the connection surface 101 of the fixed portion 100 and the surface 321 of the support element 320. Therefore, due to the elastic force of the pressurizing element 330, the pressurizing element 330 can continuously provide a thrust force to the piezoelectric module 310 and maintain the contact between the contact element 313 of the piezoelectric module 310 and the movable portion 200. Further, since the piezoelectric module 310 receives the thrust force of the pressurizing element 330, the surface 321 of the support element 320 may be inclined with respect to the connection surface 101 of the fixed portion 100.

[0040] Also, as shown in FIGS. 1C and 1D, in the present embodiment, when observed along the direction parallel to the surface 321 of the support element 320, the piezoelectric module 310 is disposed between the surface 321 of the support element 320 and the stopper block 130, the string 333 is inclined with respect to the surface 321 of the support element 320, and at least a part of the string 333 overlaps with the support element 320. When viewed along the direction perpendicular to the surface 321 of the support element 320, the string 333 and the support element 320 do not overlap. Thereby, the optical element driving mechanism 10A can be effectively miniaturized.

[0041] FIG. 2A is a schematic diagram showing an optical element driving mechanism 10B in another embodiment of the present invention, FIG. 2B is a cross-sectional view taken along the A-A direction of FIG. 2A, and FIG. 2C is a cross-sectional view taken along the B-B direction of FIG. 2A. As shown in FIGS. 2A to 2C, the optical element driving mechanism 10B mainly includes a fixed portion 100, a movable portion 200, and a driving assembly 300. The fixed portion 100 can include a base 110 and a shaft 120. The shaft 120 is connected to the base 110 and protrudes from the upper surface 111 of the base 110. The movable portion 200 is disposed on the upper surface 111 of the base 110 and includes an annular structure surrounding the aforementioned shaft 120. The driving assembly 300 is disposed on the base 110 and is located on one side of the movable portion 200. The driving assembly 300 can provide a driving force to the movable portion 200 so that the movable portion 200 can rotate around the shaft 120. An external optical element (not shown) is connected to the movable portion 200 so that when the driving assembly 300 rotationally drives the movable portion 200, the optical element can also be rotationally driven accordingly.

[0042] The driving assembly 300 can include a piezoelectric module 310, a support element 320, and a pressing element 330. Since the piezoelectric module 310 and the support element 320 are the same as those in the embodiments shown in FIGS. 1A to 1D, they will not be repeated here.

[0043] In this embodiment, the pressing element 330 includes a first magnetic element 334 and a second magnetic element 335. The first magnetic element 334 is disposed on the support element 320, the second magnetic element 335 is disposed on the fixed portion 100, and the first magnetic element 334 corresponds to the second magnetic element 335.

[0044] The first magnetic element 334 is disposed between the second magnetic element 335 and the movable portion 200. Since a magnetic repulsive force can be generated between the first magnetic element 334 and the second magnetic element 335, the pressing element 330 can continuously provide a thrust force to the piezoelectric module 310 by the aforementioned magnetic repulsive force, and maintain the contact between the contact element 313 of the piezoelectric module 310 and the movable portion 200.

[0045] In this embodiment, in order to prevent the piezoelectric module 310 from being attracted by receiving the first magnetic element 334 or the second magnetic element 335 and moving away from the movable part 200, the piezoelectric module 310 needs to include a non-ferromagnetic material.

[0046] As shown in FIG. 2C, in this embodiment, the support element 320 can include one or more guide protrusions 322. The guide protrusion 322 protrudes from the side surface 323 of the support element 320 and is connected to the bottom surface 324 of the support element 320. A guide concave groove 140 corresponding to the guide protrusion 322 is formed in the fixed part 100. The size of the guide concave groove 140 is substantially the same as the size of the guide protrusion 322, and the guide protrusion 322 is slidably accommodated in the guide concave groove 140.

[0047] In particular, it should be noted that the aforementioned guide protrusion 322 includes a first side 322A and a second side 322B. The second side 322B is connected to the bottom surface 324 of the support element 320, and an obtuse angle is formed between the second side 322B and the bottom surface 324 of the support element 320. The first side 322A and the second side 322B are connected, and the length of the first side 322A is greater than the length of the second side 322B. The aforementioned guide protrusion 322 and guide concave groove 140 prevent the piezoelectric module 310 from tipping over due to the thrust of the pressurizing element 330.

[0048] In this embodiment, a rounded corner R can be formed between the first side 322A and the second side 322B, and a gap G can be provided between the rounded corner R and the inner wall of the guide concave groove 140. Lubricating oil can be filled in this gap G to reduce the friction between the support element 320 and the fixed part 100.

[0049] As shown in FIG. 2D, in another embodiment of the present invention, the piezoelectric module 310 is disposed between the first magnetic element 334 and the second magnetic element 335, and a magnetic attractive force can be generated between the first magnetic element 334 and the second magnetic element 335. Thereby, in this embodiment, the piezoelectric module 310 can also be pressed toward the movable part 200, and the contact element 313 of the piezoelectric module 310 can maintain contact with the movable part 200.

[0050] FIG. 3A is a schematic diagram showing an optical element driving mechanism 10C in another embodiment of the present invention, FIG. 3B is a partial enlarged view showing the aforementioned optical element driving mechanism 10C, and FIG. 3C is a cross-sectional view taken along the C-C direction of FIG. 3A. As shown in FIGS. 3A to 3C, the optical element driving mechanism 10C mainly includes a fixed part 100, a movable part 200, and a driving assembly 300. The fixed part 100 can include a base 110 and a shaft 120. The shaft 120 is connected to the base 110 and protrudes from the upper surface 111 of the base 110. The movable part 200 is disposed on the upper surface 111 of the base 110 and includes an annular structure surrounding the aforementioned shaft 120. The driving assembly 300 is disposed on the base 110 and is located on one side of the movable part 200. The driving assembly 300 can provide a driving force to the movable part 200 to enable the movable part 200 to rotate around the shaft 120. An external optical element (not shown) is connected to the movable part 200 so that when the driving assembly 300 rotationally drives the movable part 200, the optical element can also be rotationally driven accordingly.

[0051] The driving assembly 300 can include a piezoelectric module 310, a support element 320, and a pressing element 330. Since the piezoelectric module 310 and the support element 320 are the same as those in the embodiments shown in FIGS. 1A to 1D, they will not be repeated here.

[0052] In this embodiment, the pressing element 330 includes a first concave groove 336, a second concave groove 337, and a spherical body 338. The first concave groove 336 is formed on the support element 320, the second concave groove 337 is formed on the fixing portion 100, and the spherical body 338 is accommodated in the first concave groove 336 and the second concave groove 337.

[0053] The spherical body 338 contacts the first concave groove 336 at at least three contact points, the spherical body 338 contacts the second concave groove 337 at at least three contact points, and the first concave groove 336 and the second concave groove 337 are displaced from each other (that is, the first concave groove 336 and the second concave groove 337 can have the same shape and size, but before the support element 320 is assembled to the fixing portion 100 and the spherical body 338 is still arranged, the first concave groove 336 and the second concave groove 337 are not aligned with each other). Therefore, when the spherical body 338 enters the first concave groove 336 and the second concave groove 337, the spherical body 338 aligns the first concave groove 336 and the second concave groove 337 with each other, and the support element 320 receives a thrust force toward the movable portion 200, and can maintain the contact between the contact element 313 of the piezoelectric module 310 and the movable portion 200. Further, the drive assembly 300 can include a flexible element (not shown) accommodated in the first concave groove 336 or the second concave groove 337.

[0054] As shown in FIG. 3C, in this embodiment, the support element 320 has one or more guide protrusions 322, and one or more guide concave grooves 140 corresponding to the guide protrusions 322 are formed in the fixing portion 100. Since the guide protrusions 322 and the guide concave grooves 140 are the same as those in the embodiment of FIG. 2C, they will not be repeated here.

[0055] The features among the foregoing embodiments can be combined as needed, as long as they do not violate the creative spirit or conflict with each other.

[0056] In summary, the present invention provides an optical element driving mechanism including a movable portion, a fixed portion, and a drive assembly. The movable portion is used to connect an optical element and can move relative to the fixed portion. The drive assembly is used to drive the movable portion to move.

[0057] Although the embodiments of the present invention and their advantages are disclosed as above, it should be understood that anyone with ordinary knowledge in the technical field can make changes and substitutions without departing from the spirit and scope of the present invention. Furthermore, the protection scope of the present invention is not limited to the processes, machines, manufactures, compositions of matter, apparatuses, methods, and steps in the specific embodiments described herein. Anyone with ordinary knowledge in the technical field can understand the processes, machines, manufactures, compositions of matter, apparatuses, methods, and steps that are currently or will be developed in the future from the content of the present invention, as long as they can perform substantially the same functions or achieve substantially the same results as the embodiments described herein. Therefore, the protection scope of the present invention includes the above-mentioned processes, machines, manufactures, compositions of matter, apparatuses, methods, and steps. Also, each claim in the claims constitutes an individual embodiment, and the combination of each claim and embodiment is the protection scope of the present invention.

[0058] Although a plurality of preferred embodiments of the present invention have been described, the present invention is not limited to the described embodiments. It should be understood that anyone with ordinary knowledge in the technical field of the present invention can make changes and substitutions without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall follow the following claims. Also, each claim in the utility model registration claims constitutes an independent embodiment, and all combinations of each claim and embodiment are within the scope of the present invention.

Description of Reference Numerals

[0059] 10A, 10B, 10C Optical Element Driving Mechanism 100 Fixed Portion 101 Connection Surface 110 Base 111 Upper Surface 120 Shaft 130 Stopper Block 140 Guide Groove 200 Movable Portion 300 Driving Assembly 310 Piezoelectric module 311 Deformation element 312 Piezoelectric element 313 Contact element 320 Support element 321 Surface 322 Guide protrusion 322A First side 322B Second side 323 Side surface 324 Bottom surface 330 Pressing element 331 First fixed section 332 Second fixed section 332A Unit 332B Unit 333 String 334 First magnetic element 335 Second magnetic element 336 First concave groove 337 Second concave groove 338 Sphere D Distance G Gap H1 First hole H2 Second hole H3 Third hole H4 Fourth hole K Locking element P1, P11, P12 Main part P2 Sub-main part Q Virtual quadrilateral R Rounded corner part R1 First protrusion R2 Second protrusion R3 Third protrusion R4 Fourth protrusion S1 Surface S2 Surface

Claims

1. A movable part used to connect optical elements; Fixed part, and a drive assembly; the movable part is movable relative to the fixed part; The drive assembly is used to drive the movable part to move the optical element drive mechanism.

2. The drive assembly includes: A piezoelectric module disposed on the fixed portion; a support element connected to the piezoelectric module; and The optical element driving mechanism according to claim 1 , further comprising a pressure element connected to the support element and providing the support element with a thrust force toward the movable portion.

3. The pressure element includes a spring, the spring having a first fixing section connected to a surface of the support element; a second fixed section connected to the fixed part; and a string connected to the first fixed section and the second fixed section; 3. The optical element driving mechanism of claim 2, wherein at least a portion of the strings and the support elements overlap when viewed along a direction parallel to the surface, and the strings and the support elements do not overlap when viewed along a direction perpendicular to the surface.

4. the second fixing section has a first hole, a second hole, a third hole, and a fourth hole, and the fixing portion has a first protrusion, a second protrusion, a third protrusion, and a fourth protrusion; The optical element driving mechanism of claim 3, wherein the first convex portion, the second convex portion, the third convex portion, and the fourth convex portion respectively pass through the first hole, the second hole, the third hole, and the fourth hole, and the size of the first hole is equal to the size of the first convex portion, the size of the second hole is larger than the size of the second convex portion, the size of the third hole is larger than the size of the third convex portion, and the size of the fourth hole is larger than the size of the fourth convex portion.

5. 5. The optical element driving mechanism of claim 4, wherein a maximum distance between the second convex portion and the inner wall of the second hole is smaller than a maximum distance between the fourth convex portion and the inner wall of the fourth hole, and a maximum distance between the third convex portion and the inner wall of the third hole is smaller than a maximum distance between the fourth convex portion and the inner wall of the fourth hole.

6. The optical element driving mechanism of claim 5, wherein lines connecting the centers of the first hole, the second hole, the third hole, and the fourth hole form an imaginary quadrangle, and the first hole and the fourth hole are located at diagonals of the imaginary quadrangle.

7. The optical element driving mechanism of claim 6, wherein the fourth hole has an elliptical structure, and the major axis of the elliptical structure is parallel to a line connecting the centers of the fourth hole and the second hole, or a line connecting the centers of the fourth hole and the third hole.

8. The optical element drive mechanism of claim 6 , wherein the first fixed section is located within the imaginary quadrilateral.

9. The optical element driving mechanism according to claim 3 , wherein the fixed portion includes a stopper block, the piezoelectric module is disposed between the surface and the stopper block, and the piezoelectric module and the support element are in contact with the stopper block.

10. The optical element driving mechanism according to claim 3 , wherein the second fixed section is connected to a connection surface of the fixed part, and there is a distance between the connection surface and the surface in a direction perpendicular to the surface.

11. The optical element driver of claim 10 , wherein the surface is inclined relative to the connecting surface.

12. 4. The optical element drive mechanism according to claim 3, wherein the chord is inclined with respect to the surface when viewed along a direction parallel to the surface.

13. The pressure element is A first magnetic element disposed on the support element; and The optical element driving mechanism according to claim 2 , further comprising a second magnetic element disposed on the fixed portion and corresponding to the first magnetic element.

14. The optical element driver of claim 13 , wherein the piezoelectric module comprises a non-ferromagnetic material.

15. 3. The optical element driving mechanism of claim 2, wherein the support element includes a guide protrusion protruding from a side surface of the support element, the fixed portion includes a guide groove, the guide protrusion is slidably disposed within the guide groove, the guide protrusion includes a first side edge and a second side edge, the second side edge is connected to a bottom surface of the guide protrusion, an obtuse angle is formed between the second side edge and the bottom surface, and the first side edge is connected to the second side edge.

16. The optical element driving mechanism according to claim 15 , wherein the length of the first side is different from the length of the second side.

17. 16. The optical element driving mechanism according to claim 15, wherein a rounded corner is formed between the first side and the second side, and a gap is provided between the rounded corner and an inner wall of the guide groove.

18. The pressure element is sphere, A first groove formed on the support element; and A second groove is formed on the fixing portion, 3. The optical element driving mechanism according to claim 2, wherein the sphere is housed in the first groove and the second groove, and the first groove and the second groove are offset from each other.

19. The optical element driving mechanism of claim 18 , wherein the drive assembly includes a flexible element housed in the first groove or the second groove.

20. 20. The optical element driving mechanism according to claim 18, wherein the sphere contacts the first groove at at least three contact points and contacts the second groove at at least three contact points.

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