CN214669809U - Optical device driving mechanism and camera module - Google Patents

Abstract

The present disclosure relates to an optical device driving mechanism and an image pickup module, wherein the optical device driving mechanism includes a first base, a second base movable relative to the first base in an X-Y plane, and a third base movable relative to the first base along a Z-axis, wherein a magnet is provided on the first base, a first coil is provided on the second base, and a second coil is provided on the third base, wherein the magnet includes a first magnetic pair, a second magnetic pair, and a third magnetic pair disposed between the first magnetic pair and the second magnetic pair, and has a first surface facing the first coil formed by the first magnetic pair and the third magnetic pair, and a second surface facing the second coil formed by the second magnetic pair and the third magnetic pair, wherein the third magnetic pair has the same magnetic pole at the first surface and the second surface, and the magnetic pole of the first magnetic pair is opposite to the third magnetic pair to form a closed magnetic circuit, the magnetic pole of the second magnetic pair on the second surface is opposite to that of the third magnetic pair to form a closed magnetic circuit.

Description

Optical device driving mechanism and camera module

Technical Field

The disclosure relates to the technical field of optical imaging, in particular to an optical device driving mechanism and a camera module.

Background

In the related art, in order to improve the imaging resolution of the camera module, an optical anti-shake (i.e., OIS) function and an auto-focus (i.e., AF) function are generally introduced into the camera module. The automatic focusing function and the optical anti-shake function are mostly realized by adopting a magnet and a coil to generate electromagnetic action to drive the lens, the camera shooting module is arranged in the electronic equipment, the requirement of the electronic equipment on the space is large, the existing magnet not only occupies a large space, but also has weak driving force in the anti-shake direction and the focusing direction, and the requirements of small volume and large driving force of the whole structure are hardly considered.

SUMMERY OF THE UTILITY MODEL

A first object of the present disclosure is to provide an optical device driving mechanism capable of solving the problem of poor driving force of the current optical device driving mechanism.

A second object of the present disclosure is to provide a camera module including the optical device driving mechanism provided by the present disclosure.

To achieve the above object, the present disclosure provides an optical device driving mechanism including a first substrate, a second substrate movable relative to the first substrate in an X-Y plane, and a third substrate movable relative to the first substrate along a Z-axis,

wherein the first base body is provided with a magnet, the second base body is provided with a first coil which generates electromagnetic action with the magnet and can move relatively, the third base body is provided with a second coil which generates electromagnetic action with the magnet and can move relatively,

wherein the magnet includes a first magnetic pair, a second magnetic pair, and a third magnetic pair disposed between the first magnetic pair and the second magnetic pair, and has a first surface formed by the first magnetic pair and the third magnetic pair facing the first coil, and a second surface formed by the second magnetic pair and the third magnetic pair facing the second coil,

wherein the third magnetic pair has the same magnetic pole at the first surface and the second surface, the magnetic pole of the first magnetic pair at the first surface is opposite to the third magnetic pair to form a closed magnetic circuit, and the magnetic pole of the second magnetic pair at the second surface is opposite to the third magnetic pair to form a closed magnetic circuit.

Optionally, the cross section of the magnet is formed into an L-shaped structure, the first magnetic pair and the second magnetic pair are respectively located on two sides of the L-shaped structure, and the third magnetic pair is located at a corner of the L-shaped structure.

Optionally, the magnet is configured as a split structure formed by splicing a plurality of bipolar magnetic blocks, and the magnetizing direction of the first magnet pair is parallel to the Z axis, the magnetizing direction of the second magnet pair is parallel to the X axis, and the magnetizing direction of the third magnet pair is inclined to the X-Y plane and the Z axis.

Optionally, the cross section of the magnet is formed in a square shape, the first magnetic pair and the second magnetic pair are arranged at two opposite corners of the magnet, the third magnetic pair is arranged between the other two opposite corners, and the magnetizing direction of the third magnetic pair is inclined to the X-Y plane and the Z axis.

Optionally, the cross section of the magnet is formed into a pentagon with a right angle between the first surface and the second surface as one of inner angles, the third magnetic pair extends from the position of the right angle to at least one opposite side, and the magnetizing directions of the third magnetic pair are inclined to the X-Y plane and the Z axis in the same way.

Optionally, the magnet is constructed in a split structure formed by splicing a plurality of bipolar magnetic blocks, or in an integrated structure formed by magnetizing multiple poles.

Optionally, the first magnetic pair and the second magnetic pair are identical in structure.

Optionally, a first magnetic member is disposed on a side of the first coil facing away from the first magnetic pair, and/or a second magnetic member is disposed on a side of the second coil facing away from the second magnetic pair.

Optionally, a ball is disposed in contact between the first substrate and the second substrate to support the second substrate to move relative to the first substrate.

According to a second aspect of the present disclosure, there is also provided a camera module including a lens and the optical device driving mechanism provided by the present disclosure.

Through the technical scheme, when the first coil is electrified, the first coil and the first magnetic pair generate electromagnetic action and simultaneously generate electromagnetic action with the third magnetic pair, so that the driving force generated by the first coil and used for driving the lens to move in the X-Y plane is increased, and a larger anti-shake stroke is realized; when the second coil is electrified, the second coil and the second magnetic pair generate electromagnetic action and simultaneously generate electromagnetic action with the third magnetic pair, so that the driving force generated by the second coil and used for driving the lens to move along the Z axis is increased, and a larger automatic focusing function is realized. In the embodiment of the disclosure, the anti-shake direction magnetic circuit and the focusing direction magnetic circuit share the third magnetic pair, and the magnetizing direction of the third magnetic pair is inclined to the anti-shake direction and the focusing direction, so that the magnet simultaneously forms the closed magnetic circuit for automatic focusing and the closed magnetic circuit for anti-shake, thereby simultaneously increasing the driving force of the anti-shake direction and the focusing direction, satisfying the large stroke requirement and ensuring the high-definition imaging performance of the camera module.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is an exploded schematic view of an optic drive mechanism provided in an exemplary embodiment of the present disclosure;

FIG. 2 is a partial cross-sectional view of an optic drive mechanism provided in an exemplary embodiment of the present disclosure;

FIG. 3 is a schematic diagram of an optical device driving mechanism provided in an exemplary embodiment of the present disclosure with a portion of the structure omitted;

FIG. 4 is a magnetic flux distribution diagram of an optic drive mechanism provided in an exemplary embodiment of the present disclosure;

FIG. 5 is a magnetic flux distribution plot for an optic drive mechanism provided by another exemplary embodiment of the present disclosure;

fig. 6 is a magnetic flux distribution diagram of an optical device driving mechanism provided in yet another exemplary embodiment of the present disclosure;

fig. 7 is a magnetic flux distribution diagram of an optical device driving mechanism provided in an exemplary embodiment of the related art;

fig. 8 is a magnetic flux distribution diagram of an optical device driving mechanism provided in another exemplary embodiment of the related art.

Description of the reference numerals

101 first substrate 102 second substrate

103 third base 104 shell

200 magnet 201 first magnetic pair

202 second magnetic pair 203 third magnetic pair

301 first coil 302 second coil

401 first magnetic part 402 second magnetic part

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, terms of orientation such as "upper, lower, left, and right" are used as defined according to the drawing direction of fig. 2, "inner and outer" are with respect to the self-outline of the corresponding component, and furthermore, the terms "first, second, and the like used in the embodiments of the present disclosure are for distinguishing one element from another element, and have no order or importance. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

In the related art, some optical device driving mechanisms having both the auto-focusing function and the optical anti-shake function are implemented by using a single magnet or multiple magnets and a coil to generate an electromagnetic action to drive a lens. Fig. 7 and 8 show a magnetic flux distribution pattern of a single magnet and a magnetic flux distribution pattern of a plurality of magnets in the related art, respectively. In fig. 7, a closed magnetic circuit from the magnet 200 ' back to the magnet 200 ' via the first magnetic member 401 ' is used to provide an optical anti-shake driving force; in fig. 8, the closed magnetic circuit from the magnet 200 ' back to the magnet 200 ' through the first magnetic member 401 ' is used to provide the optical anti-shake driving force, and the closed magnetic circuit from the second magnetic member 402 ' back to the magnet 200 ' is used to provide the auto-focus driving force. As can be seen from the magnetic force line distribution pattern, the multi-magnet structure is weak in magnetic force for providing the driving force for auto-focusing, while the single-magnet structure is inferior in magnetic force effect for providing the driving force for auto-focusing (the left and right sides of the drawing in fig. 7 cannot form a closed magnetic circuit).

To solve the above problem, referring to fig. 1 to 6, the present disclosure provides an optical device driving mechanism including a first substrate 101, a second substrate 102 movable relative to the first substrate 101 in an X-Y plane (i.e., a plane perpendicular to an optical axis, i.e., a moving direction for realizing an optical anti-shake function), and a third substrate 103 movable relative to the first substrate 101 along a Z axis (i.e., an optical axis direction, i.e., a moving direction for an auto-focus function). As shown in fig. 1, the first base 101 may be configured as a square frame; the second base 102 may have a square base structure, and the bottom of the first base 101 may be supported on the second base 102 by balls; the third base 103 may be configured as a square frame having a profile smaller than that of the first base 101 so that the third base 103 may be accommodated in the first base 101 and supported on the side wall of the first base 101 by balls at the side wall of the third base 103; in addition, the optical device driving mechanism in the embodiment of the present disclosure may further include a case 104 that covers the outermost side to protect the internal structure.

The first base 101, the second base 102, and the third base 103 may be movably disposed on the housing 104, or one of the three may be fixed to the housing 104, and the other two may be movably disposed on the housing 104. The present disclosure is exemplified by an embodiment in which the first base 101 is fixedly disposed on the housing 104, and the second base 102 and the third base 103 are movably disposed on the housing 104. Specifically, the first coil 301 may simultaneously drive the second substrate 102 and the third substrate 103 to move in the anti-shake direction, and the second coil 302 drives the third substrate 103 to move in the focusing direction relative to the second substrate 102, in other embodiments, the second substrate 102 and the third substrate 103 may also move in the anti-shake direction and the focusing direction, respectively, and the movements are not related to each other, and these modifications are all within the scope of the present disclosure.

The first base 101 is provided with a magnet 200, the second base 102 is provided with a first coil 301 that electromagnetically acts on the magnet 200 to be movable relative thereto, and the third base 103 is provided with a second coil 302 that electromagnetically acts on the magnet 200 to be movable relative thereto. The magnet 200 comprises a first magnetic pair 201, a second magnetic pair 202 and a third magnetic pair 203 arranged between the first magnetic pair 201 and the second magnetic pair 202, and has a first surface formed by the first magnetic pair 201 and the third magnetic pair 203 and facing the first coil 301, and a second surface formed by the second magnetic pair 202 and the third magnetic pair 203 and facing the second coil 302, wherein the third magnetic pair 203 has the same magnetic poles at the first surface and the second surface, namely the magnetizing direction of the third magnetic pair 203 is inclined to the Z axis and the X-Y plane, the magnetic pole of the first magnetic pair 201 at the first surface is opposite to that of the third magnetic pair 203 to form a closed magnetic circuit, and further the second base 102 is driven to move relative to the first base 101, so that the anti-shake effect can be achieved; the magnetic poles of the second magnetic pair 202 on the second surface are opposite to the magnetic poles of the third magnetic pair 203 to form a closed magnetic circuit, so that the third base 102 is driven to move relative to the first base 101, and the automatic focusing function can be achieved. Fig. 4 to 6 show some arrangements of the magnets 200, and here, for clarity of the drawings, the first coil 301 and the second coil 302 are not shown, and in practical applications, the first coil 301 is disposed near the first magnetic member 401 in the drawings, and the second coil 302 is disposed near the second magnetic member 402 in the drawings, and the first magnetic member 401 and the second magnetic member 402 can respectively play a role of magnetic flux confinement, and the specific arrangement thereof will be described in detail below.

It should be noted that the focusing direction extends along the Z-axis, and the anti-shake direction extends along the X-Y plane, which can be referred to the coordinate axes identified in fig. 1-3.

With the above technical solution, as the magnetic lines of force are distributed as shown in fig. 4 to 6, when the first coil 301 is energized, under the common electromagnetic action of the first magnetic pair 201 and the third magnetic pair 203, the driving force generated by the first coil 301 to drive the second base 102 to move in the X-Y plane is increased, so as to realize a larger anti-shake stroke; when the second coil 302 is electrified, under the common electromagnetic action with the second magnetic pair 202 and the third magnetic pair 203, the driving force generated by the second coil 302 to drive the third base 103 to move along the Z-axis is increased, so that a larger automatic focusing function is realized. In the embodiment of the present disclosure, the anti-shake direction magnetic circuit and the focusing direction magnetic circuit share the third magnetic pair 203, and the magnetizing direction of the third magnetic pair 203 is inclined to the anti-shake direction and the focusing direction, so that the magnet 200 simultaneously forms the closed magnetic circuit for automatic focusing and the closed magnetic circuit for anti-shake, thereby increasing the driving force in the anti-shake direction and the focusing direction, satisfying the large stroke requirement, and ensuring the high-definition imaging performance of the camera module.

As described above, the balls may be disposed in contact between the first substrate 101 and the second substrate 102 to support the second substrate 102 to move relative to the first substrate 101, such as at least three corners to form a triangular support, or at four corners as shown in fig. 1, and the balls may be disposed in contact between the first substrate 101 and the third substrate 103 to support the third substrate 103 to move relative to the first substrate 101, such as at two ends of one side, each end being supported by a plurality of balls arranged in a row. In other embodiments, the support may be provided by a spring, a memory metal, a sliding shaft ball, or the like, which is not limited in the present disclosure.

In the embodiment of the present disclosure, referring to fig. 2, a cross section of the magnet 200 may be formed in an L-shaped structure, the first magnetic pair 201 and the second magnetic pair 202 are respectively located at two sides of the L-shaped structure, and the third magnetic pair 203 is located at a corner of the L-shaped structure, so that a closed magnetic path is respectively formed between the first magnetic pair 201 and the third magnetic pair 203, and between the second magnetic pair 202 and the third magnetic pair 203. By the arrangement, the magnet 200 can realize larger driving force under the condition of smaller volume, and other parts can be placed on the inner side of the corner of the L-shaped structure. For example, as shown in fig. 2, when the magnet 200 is configured in an L-shaped configuration, the portion of the first base 101 connected thereto may be configured in a structure adapted thereto.

When the magnet 200 is configured as an L-shaped structure, the magnet 200 may be configured as a split structure formed by splicing a plurality of bipolar magnets, so as to facilitate installation, and the magnetization direction of the first magnet pair 201 may be parallel to the Z-axis, the magnetization direction of the second magnet pair 202 may be parallel to the X-axis, and the magnetization direction of the third magnet pair 203 may be inclined to the X-Y plane and the Z-axis. Fig. 4 is a magnetic force distribution diagram of the optical device driving mechanism according to the present disclosure, in which the L-shaped magnet 200 is included, and as can be seen from the distribution diagram, the magnet 200 has a dense closed magnetic path on both the right side and the lower side in the drawing direction, and the arrangement of three magnetic pairs can greatly increase the driving force in the anti-shake direction and the focusing direction. In the embodiment of the present disclosure, the magnetic poles of the first magnetic pair 201 are distributed in a direction perpendicular to the magnetic poles of the second magnetic pair 202, and taking the direction of the drawing of fig. 2 as an example, the magnetic poles of the first magnetic pair 201 are distributed vertically, the magnetic poles of the second magnetic pair 202 are distributed horizontally, and the magnetic poles of the third magnetic pair 203 are distributed in a manner inclined at 45 ° to both the horizontal direction and the vertical direction. Of course, the inclination angle of the magnetic poles of the third magnetic pair 203 can be adjusted according to actual requirements, for example, in the direction of the drawing, if the requirement of the optical device driving mechanism for the driving force of the auto-focusing is high, the magnetic pole switching surface of the third magnetic pair 203 (the dotted line in the third magnetic pair 203 in the drawing) can be rotated counterclockwise by a certain angle, which can be realized when magnetizing. The arrangement of the magnetic poles of the first magnetic pair 201, the second magnetic pair 202 and the third magnetic pair 203 and the position of the third magnetic pair 203 relative to the first coil 301 and the second coil 302 enable the first coil 301 to be energized in the magnetic fields of the first magnetic pair 201 and the second magnetic pair 202 and the second coil 302 to be energized in the magnetic fields of the second magnetic pair 202 and the third magnetic pair 203.

Further, the cross section of the magnet 200 may be formed in a square shape, and the square magnet 200 occupies a small space, so that the magnet 200 realizes a large driving force in a case of a small volume, and the magnet is convenient to charge due to a regular shape. The first magnetic pair 201 and the second magnetic pair 202 are respectively arranged at two opposite corners of the magnet 200, the third magnetic pair 203 is arranged between the other two opposite corners, and the magnetizing direction of the third magnetic pair 203 is inclined to the X-Y plane and the Z axis. Fig. 5 is a magnetic force distribution diagram of the optical device driving mechanism according to the present disclosure, in which the magnets 200 have a dense closed magnetic path on both right and lower sides in the drawing direction, and the three magnetic portions are provided to increase the driving force in the focusing direction in the anti-shake direction to a large extent.

In other embodiments, referring to fig. 6, the cross section of the magnet 200 may be formed as a pentagon having a right angle between the first surface and the second surface as one of the inner angles, the third magnetic pair 203 extends from the position of the right angle to at least one of the opposite sides, and the magnetizing directions of the third magnetic pair 203 are equally inclined to the X-Y plane and the Z axis. Specifically, the magnetizing directions of the first magnetic pair 201, the second magnetic pair 202 and the third magnetic pair 203 are the same, so that the magnetic pairs are magnetized synchronously. The magnet 200 may be configured in any suitable structure, and it is sufficient to increase the driving force in the anti-shake direction and the focusing direction, and all that is within the scope of the present disclosure.

According to an embodiment of the present disclosure, the magnet 200 may be constructed in a split structure formed by splicing a plurality of bipolar magnetic blocks, or in an integrated structure formed by magnetizing multiple poles. The multi-pole magnetization refers to a process of magnetizing more than two groups of magnet pairs on the same magnet, and the square magnet 200 in fig. 5 and the special-shaped polygonal magnet 200 in fig. 6 can be of split structures formed by splicing a plurality of bipolar magnets or of split structures formed by splicing a plurality of bipolar magnets.

In addition, referring to fig. 2, the first magnetic pair 201 and the second magnetic pair 202 may have the same structure, and each may be configured as a square, a triangle, or other suitable shape, so as to increase the versatility of each magnetic part and save the cost.

In an embodiment, referring to fig. 2 and 3, a first magnetic member 401 may be disposed on a side of the first coil 301 facing away from the first magnetic pair 201, the first magnetic member 401 may generate a magnetic attraction with the first magnetic pair 201, when the first base 101 and the second base 102 are supported by a ball, the ball is compressed between the first base 101 and the second base 102 by the magnetic attraction, so as to ensure that the movement process of the optical device in the anti-shake process is stable, improve the stability and reliability of the whole system, and effectively improve the optical imaging effect, in addition, the first magnetic member 401 restricts the direction of magnetic lines and concentrates the distribution of magnetic beams after the first coil 301 is energized, so as to avoid magnetic leakage, thereby improving the utilization rate of the magnetic field and increasing the driving force, wherein two ends of the first magnetic member 401 may extend out of two ends of the first coil 301, so as to improve the magnetic beam effect and increase the driving force; one side of the second coil 302 facing away from the second magnetic pair 202 may be provided with a second magnetic member 402, the principle of the second magnetic member 402 is similar to that of the first magnetic member 401, that is, the second magnetic member 402 can generate a magnetic attraction effect with the second magnetic pair 202, when the first base 101 and the third base 103 are supported by a ball, the ball is pressed between the first base 101 and the third base 103 due to the magnetic attraction effect, so that the stability of the optical device in the motion process of the automatic focusing process is ensured, the stability and reliability of the whole system are improved, and the optical imaging effect is effectively improved.

According to a second aspect of the present disclosure, there is also provided a camera module, which includes a lens and the above-mentioned optical device driving mechanism. The camera module has all the beneficial effects of the optical device driving mechanism, and the details are not repeated herein. In addition, this disclosure does not restrict the mounted position of parts such as lens group and chip in the module of making a video recording, as long as can realize reasonable anti-shake function and auto focus function can. For example, the first base 101 is fixed in a housing of the optical device driving mechanism, the chip is fixed on the second base 102, and the lens group is fixed on the third base 103.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. An optical device driving mechanism comprising a first base (101), a second base (102) movable in an X-Y plane with respect to the first base (101), and a third base (103) movable along a Z-axis with respect to the first base (101),

wherein a magnet (200) is arranged on the first base body (101), a first coil (301) which generates electromagnetic action with the magnet (200) and can move relatively is arranged on the second base body (102), a second coil (302) which generates electromagnetic action with the magnet (200) and can move relatively is arranged on the third base body (103),

wherein the magnet (200) comprises a first magnetic pair (201), a second magnetic pair (202) and a third magnetic pair (203) arranged between the first magnetic pair (201) and the second magnetic pair (202), and has a first surface formed by the first magnetic pair (201) and the third magnetic pair (203) facing the first coil (301), and a second surface formed by the second magnetic pair (202) and the third magnetic pair (203) facing the second coil (302),

wherein the third magnetic pair (203) has the same magnetic pole at the first surface and the second surface, the magnetic pole of the first magnetic pair (201) at the first surface is opposite to the third magnetic pair (203) to form a closed magnetic circuit, and the magnetic pole of the second magnetic pair (202) at the second surface is opposite to the third magnetic pair (203) to form a closed magnetic circuit.

2. The mechanism as claimed in claim 1, wherein the cross section of the magnet (200) is formed in an L-shaped configuration, the first and second pairs (201, 202) being located on either side of the L-shaped configuration, and the third pair (203) being located at a corner of the L-shaped configuration.

3. The optical device driving mechanism according to claim 2, wherein the magnet (200) is constructed in a split structure by splicing a plurality of bipolar magnet blocks, and the magnetizing direction of the first magnet pair (201) is parallel to the Z-axis, the magnetizing direction of the second magnet pair (202) is parallel to the X-axis, and the magnetizing direction of the third magnet pair (203) is oblique to the X-Y plane and the Z-axis.

4. The optical device driving mechanism according to claim 1, wherein the magnet (200) is formed in a square shape in cross section, the first magnetic pair (201) and the second magnetic pair (202) are provided at two diagonal corners of the magnet (200), the third magnetic pair (203) is provided between the other two diagonal corners, and a magnetizing direction of the third magnetic pair (203) is inclined to an X-Y plane and a Z-axis.

5. The optical device driving mechanism according to claim 1, wherein the cross section of the magnet (200) is formed as a pentagon having a right angle between the first surface and the second surface as one of inner angles, the third magnetic pair (203) extends from a position of the right angle to at least one opposite side, and the magnetizing directions of the third magnetic pair (203) are equally inclined to an X-Y plane and a Z-axis.

6. The optical device driving mechanism according to claim 4 or 5, wherein the magnet (200) is constructed in a split structure in which a plurality of bipolar magnetic blocks are spliced, or in an integrated structure formed by multi-pole magnetization.

7. The optic drive mechanism according to any of claims 1-5, wherein the first magnetic pair (201) and the second magnetic pair (202) are identical in structure.

8. The optic drive mechanism according to any of claims 1-5, characterized in that a side of the first coil (301) facing away from the first magnetic pair (201) is provided with a first magnetic element (401) and/or a side of the second coil (302) facing away from the second magnetic pair (202) is provided with a second magnetic element (402).

9. The optical device driving mechanism according to any one of claims 1 to 5, wherein a ball is provided in contact between the first base (101) and the second base (102) to support the second base (102) for movement relative to the first base (101).

10. A camera module comprising a lens and an optical device driving mechanism according to any one of claims 1 to 9.

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