阅读说明：本技术 镜头模组 (Lens module ) 是由 李林珍 卢继亮 李刚 张晋 顾春欣 于 2019-10-15 设计创作，主要内容包括：本发明提供了镜头模组,包括壳体、收容于壳体内的镜头、固定镜头的安装支架、与安装支架相对设置的第一基座、第二基座、驱动安装支架使得镜头相对于第一基座在镜头的光轴方向发生相对位移的第一驱动件、驱动安装支架使得镜头相对于第二基座在垂直于镜头的光轴方向发生相对位移的第二驱动件,第一基座、第二基座相对于壳体固定。本发明通过安装支架固定镜头,通过第一驱动件以驱动镜头沿其光轴方向发生相对位移,使镜头在壳体内自动对焦；通过第二驱动件以驱动镜头沿垂直于镜头的光轴方向发生相对位移,以补偿镜头在垂直于光轴方向的抖动；从而使本镜头模组的结构简单、生产效率高,可有效实现防抖和自动对焦。(The invention provides a lens module, which comprises a shell, a lens accommodated in the shell, a mounting bracket for fixing the lens, a first base, a second base, a first driving piece and a second driving piece, wherein the first base, the second base, the first driving piece and the second driving piece are arranged opposite to the mounting bracket, the first driving piece drives the mounting bracket to enable the lens to relatively move relative to the first base in the optical axis direction of the lens, the second driving piece drives the mounting bracket to enable the lens to relatively move relative to the second base in the optical axis direction perpendicular to the lens, and the first base and the second base are fixed relative to the. The lens is fixed by the mounting bracket, and the first driving piece drives the lens to generate relative displacement along the optical axis direction of the lens, so that the lens is automatically focused in the shell; the second driving piece drives the lens to generate relative displacement along the direction vertical to the optical axis of the lens so as to compensate the shake of the lens in the direction vertical to the optical axis; therefore, the lens module has simple structure and high production efficiency, and can effectively realize anti-shake and automatic focusing.)

1. A lens module is characterized by comprising a shell, a lens accommodated in the shell, a mounting bracket for fixing the lens, a first base, a second base, a first driving piece and a second driving piece, wherein the first base and the second base are arranged opposite to the mounting bracket;

the first driving piece comprises first magnetic steel fixed on the mounting bracket and a first coil fixed relative to the shell, the first magnetic steel is magnetized along the optical axis direction of the lens, the first coil is arranged at one end of the first magnetic steel along the optical axis direction, and the thickness direction of the first coil winding extends along the optical axis direction;

the second driving piece is including being fixed in the second magnet steel of installing support and for the second coil that the casing is fixed, the second magnet steel magnetizes along the optical axis direction of level and perpendicular to camera lens, the second coil along perpendicular to optical axis direction set up in one side of second magnet steel, the wire-wound thickness direction of second coil extends along perpendicular to optical axis direction.

2. The lens module as set forth in claim 1, wherein: the lens module further comprises a first metal plate arranged on one side of the first magnetic steel along the direction perpendicular to the optical axis, the first magnetic steel is overlapped with the first metal plate along the projection perpendicular to the optical axis, and when the lens is displaced in the optical axis direction, the acting force between the first metal plate and the first magnetic steel provides restoring force for resetting the lens.

3. The lens module as set forth in claim 2, wherein: the lens module further comprises a second metal plate arranged on one side of the second magnetic steel along the direction perpendicular to the optical axis, the second magnetic steel is overlapped with the second metal plate along the projection perpendicular to the optical axis, and when the lens is displaced along the direction perpendicular to the optical axis, the acting force between the second metal plate and the second magnetic steel provides restoring force for resetting the lens.

4. The lens module as set forth in claim 1, wherein: the mounting bracket, the first base and the second base are sequentially stacked, the second base is fixed on the shell, a first ball is arranged between the first base and the mounting bracket, and a second ball is arranged between the second base and the first base.

5. The lens module as set forth in claim 1, wherein: the mounting bracket, the second base and the first base are sequentially stacked, the first base is fixed on the shell, a first ball is arranged between the first base and the second base, and a second ball is arranged between the second base and the mounting bracket.

6. The lens module as set forth in claim 4, wherein: the surface of the first base facing the mounting bracket is provided with a first track in which the first ball slides, the surface of the second base facing the first base is provided with a second track in which the second ball slides.

7. The lens module as set forth in claim 4, wherein: the lens module further comprises a circuit board, the circuit board is fixed on the shell, and the first coil and the second coil are electrically connected with the circuit board.

8. The lens module as set forth in claim 7, wherein: the shell comprises a frame body part, a bottom plate arranged at one end of the frame body part and a cover plate arranged at the other end of the frame body part, and the second base is fixed on the bottom plate.

9. The lens module as set forth in claim 8, wherein: the circuit board comprises a first part fixed on the frame body part and a second part fixed on the cover plate, the first coil is fixed on the first part, and the second coil is fixed on the second part.

10. The lens module as set forth in claim 1, wherein: the utility model discloses a camera lens, including camera lens, installing support, first magnet steel, every first holding tank, second magnet steel, installing support is located the both sides of camera lens all are equipped with first holding tank and second holding tank, first magnet steel is equipped with two, every inlay in the first holding tank and establish one first magnet steel, the second magnet steel is equipped with two, every inlay in the second holding tank and establish one the second magnet steel.

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of optical imaging, in particular to a lens module.

[ background of the invention ]

In recent years, with the development of optical imaging technology and the rise of electronic products with imaging functions, optical lenses are widely used in various electronic products. Generally, light rays are directly emitted from an object side, pass through the lens assembly along an optical axis to reach an image side, and image an object through the lens assembly. The lens assembly generally has an auto-focusing function (autofocusing) and an Optical Image Stabilization (OIS).

The existing lens module utilizes an elastic suspension component to suspend the lens component in a fixed frame, and the focusing coil is matched with magnetic steel arranged on one side of the focusing coil to drive the lens component to move along the direction of an optical axis, so that the automatic focusing of the lens component in the fixed frame is realized; the anti-shake coil is matched with the magnetic steel arranged on one side of the anti-shake coil to drive the lens assembly to move along the direction vertical to the optical axis, so that the shake of the lens assembly in the fixed frame is compensated; so set up, make this lens module structure complicated to production efficiency has been reduced.

Therefore, it is desirable to provide a new lens module to solve the above problems.

[ summary of the invention ]

The invention aims to provide a lens module which has a simple structure, is beneficial to improving the production efficiency and can effectively realize anti-shake and automatic focusing.

The purpose of the invention is realized by adopting the following technical scheme:

a lens module comprises a shell, a lens accommodated in the shell, a mounting bracket for fixing the lens, a first base, a second base, a first driving piece and a second driving piece, wherein the first base and the second base are arranged opposite to the mounting bracket;

the first driving piece comprises first magnetic steel fixed on the mounting bracket and a first coil fixed relative to the shell, the first magnetic steel is magnetized along the optical axis direction of the lens, the first coil is arranged at one end of the first magnetic steel along the optical axis direction, and the thickness direction of the first coil winding extends along the optical axis direction;

the second driving piece is including being fixed in the second magnet steel of installing support and for the second coil that the casing is fixed, the second magnet steel magnetizes along the optical axis direction of level and perpendicular to camera lens, the second coil along perpendicular to optical axis direction set up in one side of second magnet steel, the wire-wound thickness direction of second coil extends along perpendicular to optical axis direction.

As an improvement, the lens module further comprises a first metal plate arranged on one side of the first magnetic steel along the direction perpendicular to the optical axis, the first magnetic steel is overlapped with the first metal plate along the projection perpendicular to the optical axis, and when the lens is displaced along the optical axis, the acting force between the first metal plate and the first magnetic steel provides the restoring force for resetting the lens.

As an improvement mode, the lens module further comprises a second metal plate arranged on one side of the second magnetic steel along the direction perpendicular to the optical axis, the second magnetic steel is overlapped with the second metal plate along the projection perpendicular to the optical axis, and when the lens is displaced along the direction perpendicular to the optical axis, the acting force between the second metal plate and the second magnetic steel provides the restoring force for resetting the lens.

As an improvement mode, the mounting bracket, the first base and the second base are sequentially overlapped, the second base is fixed on the shell, a first ball is arranged between the first base and the mounting bracket, and a second ball is arranged between the second base and the first base.

As an improvement mode, the mounting bracket, the second base and the first base are sequentially overlapped, the first base is fixed on the shell, a first ball is arranged between the first base and the second base, and a second ball is arranged between the second base and the mounting bracket.

As a refinement, a surface of the first base facing the mounting bracket is provided with a first track in which the first ball slides, and a surface of the second base facing the first base is provided with a second track in which the second ball slides.

As an improved mode, the lens module further comprises a circuit board, the circuit board is fixed on the shell, and the first coil and the second coil are electrically connected with the circuit board.

As an improvement, the housing includes a housing portion, a bottom plate disposed at one end of the housing portion, and a cover plate disposed at the other end of the housing portion, and the second base is fixed to the bottom plate.

As a modification, the circuit board includes a first portion fixed to the frame portion and a second portion fixed to the cover plate, the first coil is fixed to the first portion, and the second coil is fixed to the second portion.

As an improvement mode, the installing support is located the both sides of camera lens all are equipped with first holding tank and second holding tank, first magnet steel is equipped with two, every inlay in the first holding tank and establish one first magnet steel, the second magnet steel is equipped with two, every inlay in the second holding tank and establish one the second magnet steel.

Compared with the prior art, the lens module has the advantages that the installation support is arranged to install the lens in the shell, so that the structure of the lens module is simpler; the first driving piece drives the lens to generate relative displacement along the optical axis direction of the lens, so that the lens is automatically focused in the shell; the second driving piece drives the lens to generate relative displacement along the direction vertical to the optical axis of the lens so as to compensate the shake of the lens in the direction vertical to the optical axis; therefore, the lens module has simple structure and high production efficiency, and can effectively realize anti-shake and automatic focusing.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a lens module according to a first embodiment and a second embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating an exploded state of a lens module according to a first embodiment of the invention;

fig. 3 is a schematic structural diagram of a lens module in a partially exploded state at a first viewing angle according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second view angle of the lens module in a partially exploded state according to the first embodiment of the invention;

FIG. 5 is a schematic structural view of a housing internal mounting component provided in accordance with a first embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first view angle of a state where a lens barrel is matched with a first base and a second base according to a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second view angle of the lens barrel in a state of being matched with the first base and the second base according to the first embodiment of the present invention;

fig. 8 is a schematic structural diagram illustrating an exploded state of a lens module according to a second embodiment of the invention;

fig. 9 is a schematic structural view of a lens module in a partially exploded state at a first viewing angle according to a second embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second view angle of a lens module in a partially exploded state according to a second embodiment of the invention.

In the figure: 1. a lens module; 10. a frame body portion; 20. a lens; 30. mounting a bracket; 40. a first base; 50. a first driving member; 51. a first magnetic steel; 52. a first coil; 60. a first metal plate; 70. a first ball bearing; 80. a second base; 90. a second driving member; 91. a second magnetic steel; 92. a second coil; 100. a second metal plate; 110. a second ball bearing; 120. a circuit board; 130. a cover plate; 140. a base plate; 150. a first guide groove; 160. a second guide groove; 170. a third guide groove; 180. and a fourth guide groove.

[ detailed description ] embodiments

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1-7, a first embodiment of the invention relates to a lens module 1, which includes a housing, a lens 20 accommodated in the housing, a mounting bracket 30 for fixing the lens 20, a first base 40 and a second base 80 disposed opposite to the mounting bracket 30, a first driving member 50 for driving the mounting bracket 30 to make the lens 20 relatively displace in an optical axis direction of the lens 20 with respect to the first base 40, a second driving member 90 for driving the mounting bracket 30 to make the lens 20 relatively displace in an optical axis direction perpendicular to the lens 20 with respect to the second base 80, and the first base 40 and the second base 80 are fixed with respect to the housing. Specifically, the mounting bracket 30, the first base 40 and the second base 80 can be in sliding contact with each other, so that the friction force generated between the two in contact with each other is small, and the mounting bracket 30 can be moved effectively, that is, the lens 20 can be moved effectively; more specifically, the lens 20 of the present embodiment can move in the optical axis direction of the lens 20, i.e., along the length direction of the housing, so as to achieve the auto-focusing of the lens 20 in the housing, and the lens 20 of the present embodiment can move in the direction perpendicular to the optical axis direction of the lens 20, i.e., along the width direction of the housing, so as to compensate the shake of the lens 20 in the direction perpendicular to the optical axis.

Referring to fig. 2, the lens module 1 further includes a circuit board 120, the circuit board 120 is fixed in the housing, and specifically, the first coil 52 and the second coil 92 are electrically connected to the circuit board 120, so as to provide electric energy to the first coil 52 and the second coil 92.

Referring to fig. 2-7, the first driving member 50 includes a first magnetic steel 51 fixed to the mounting bracket 30 and a first coil 52 fixed relative to the housing, the first magnetic steel 51 is magnetized along the optical axis direction of the lens 20, the first coil 52 is disposed at one end of the first magnetic steel 51 along the optical axis direction, and the thickness direction of the winding of the first coil 52 extends along the optical axis direction. In a specific application, the electromagnetic force generated by the first coil 52 and the first magnetic steel 51 cooperate to drive the lens 20 to move in the optical axis direction of the lens 20, so as to realize the automatic focusing of the lens 20 in the housing. If the magnetic pole of the first coil 52 facing the first magnetic steel 51 is opposite to the polarization direction of the magnetic pole of the first magnetic steel 51, the mounting bracket 30 drives the lens 20 to move forward in the direction of the optical axis of the lens 20; when the magnetic pole of the first coil 52 facing the first magnetic steel 51 is the same as the polarization direction of the magnetic pole of the first magnetic steel 51, the mounting bracket 30 drives the lens 20 to move in the opposite direction of the optical axis of the lens 20.

In addition, referring to fig. 2-7, the second driving member 90 includes a second magnetic steel 91 fixed to the mounting bracket 30 and a second coil 92 fixed to the housing, the second magnetic steel 91 is magnetized along a direction horizontal to and perpendicular to the optical axis of the lens 20, the second coil 92 is disposed on one side of the second magnetic steel 91 along the direction perpendicular to the optical axis, and a thickness direction of a winding of the second coil 92 extends along the direction perpendicular to the optical axis. In a specific application, in a shooting situation where a shake occurs, the lens 20 may slightly move in a plane perpendicular to the optical axis, and at this time, the lorentz force generated by the second coil 92 and the second magnetic steel 91 cooperate to drive the lens 20 to generate a displacement in an opposite direction, so as to compensate for the shake amount, thereby obtaining a high-definition image.

Compared with the prior art, the lens module 1 has a simpler structure by arranging the mounting bracket 30 to mount the lens 20 in the shell; the first driving part 50 drives the lens 20 to generate relative displacement along the optical axis direction thereof, so that the lens 20 automatically focuses in the housing; the lens 20 is driven to perform relative displacement along the direction perpendicular to the optical axis of the lens 20 by the second driving member 90, so as to compensate the shake of the lens 20 in the direction perpendicular to the optical axis; therefore, the lens module 1 has simple structure and high production efficiency, and can effectively realize anti-shake and automatic focusing.

It should be noted that, referring to fig. 2-7, the mounting bracket 30 includes a first mounting plate, a second mounting plate, and a connecting plate connecting the first mounting plate and the second mounting plate, the first mounting plate and the second mounting plate are respectively mounted at two ends of the connecting plate, and the first mounting plate and the second mounting plate are respectively symmetrical about a central line of the connecting plate, so that an accommodating opening is formed between the first mounting plate and the second mounting plate, the lens 20 passes through the accommodating opening and is mounted in the mounting bracket 30, so that the first mounting plate and the second mounting plate are respectively located at two sides of the lens 20, and the connecting plate is located at one end of the lens 20. Specifically, all be equipped with first holding tank on first mounting panel, the second mounting panel, first holding tank is located first mounting panel, the second mounting panel is close to one of first coil 52 respectively and serves, and first magnet steel 51 is equipped with two, inlays in every first holding tank and establishes a first magnet steel 51, and first coil 52 is equipped with two and sets up with two first magnet steel 51 one-to-one to install two first magnet steel 51 on installing support 30. Correspondingly, all be equipped with the second holding tank on first mounting panel, the second holding tank is located one side that first holding tank is close to camera lens 20 respectively, and second magnet steel 91 is equipped with two, inlays in every second holding tank and establishes a second magnet steel 91, and second coil 92 is equipped with two and sets up with two second magnet steel 91 one-to-ones to install two second magnet steel 91 on installing support 30. In this way, the lens 20 can be driven to move in the housing by the first driving member 50 and the second driving member 90, so that the lens 20 can achieve effective anti-shake and auto-focusing to obtain a high-quality image.

As an improvement of the present embodiment, please refer to fig. 2 and fig. 4, the lens module 1 further includes a first metal plate 60 disposed at one side of the first magnetic steel 51 along a direction perpendicular to the optical axis, a projection of the first magnetic steel 51 along the direction perpendicular to the optical axis is overlapped with the first metal plate 60, and when the lens 20 is displaced along the optical axis, a magnetic acting force between the first metal plate 60 and the first magnetic steel 51 can provide a restoring force for restoring the lens 20, so that the lens 20 is moved to the initial position.

As an improvement of the present embodiment, please refer to fig. 2 and fig. 4, the lens module 1 further includes a second metal plate 100 disposed at one side of the second magnetic steel 91 along a direction perpendicular to the optical axis, a projection of the second magnetic steel 91 along the direction perpendicular to the optical axis overlaps the second metal plate 100, and when the lens 20 is displaced along the direction perpendicular to the optical axis, a magnetic acting force between the second metal plate 100 and the second magnetic steel 91 can provide a restoring force for restoring the lens 20, so that the lens 20 is moved to the initial position.

As an improvement of the present embodiment, please refer to fig. 2-7, the mounting bracket 30, the first base 40, and the second base 80 are sequentially stacked, and the second base 80 is fixed on the housing, specifically, the first metal plate 60 and the second metal plate 100 can be fixed on the second base 80, for example, a first mounting groove and a second mounting groove can be concavely provided on one side of the second base 80 away from the mounting bracket 30, it can be understood that the number of the first mounting grooves is two, the two first mounting grooves are disposed corresponding to the two first magnetic steels 51 one by one, the number of the second mounting grooves is two, the two second mounting grooves are disposed corresponding to the two second magnetic steels 91 one by one, and further the first metal plate 60 is embedded in the first mounting groove, the second metal plate 100 is embedded in the second mounting groove, so that the two first metal plates 60 are disposed corresponding to the two first magnetic steels 51 one by one, two second metal sheets 100 and two second magnet steels 91 are disposed in a one-to-one correspondence manner, and then under the magnetic action between the first metal sheet 60 and the first magnet steel 51 or between the second metal sheets 100 and the second magnet steels 91, the lens 20 can be effectively reset after moving.

In a more preferred embodiment, referring to fig. 2-4, a first ball 70 is disposed between the first base 40 and the mounting bracket 30, and a second ball 110 is disposed between the second base 80 and the first base 40. It should be noted that, the suction force between the first metal plate 60 and the first magnetic steel 51, and between the second metal plate 100 and the second magnetic steel 91 can be beneficial to make the first balls 70 and the second balls 110 respectively pressed between the first base 40 and the mounting bracket 30, and between the second base 80 and the first base 40. The surface of the first base 40 facing the mounting bracket 30 is provided with a first track in which the first ball 70 can slide, the surface of the second base 80 facing the first base 40 is provided with a second track in which the second ball 110 can slide, so that the effective movement of the mounting bracket 30 relative to the first base 40 and the first base 40 relative to the second base 80, that is, the effective movement of the lens 20, can be facilitated.

Of course, referring to fig. 2-4, the first rail may also be disposed on the mounting bracket 30, and preferably, the mounting bracket 30 and the first base 40 cooperate to form the first rail, for example, the first rail may be formed by a first guide slot 150 and a second guide slot 160, specifically, the first guide slot 150 is disposed on a surface of the mounting bracket 30 facing the first base 40, the second guide slot 160 is disposed on a surface of the first base 40 facing the mounting bracket 30, and the first ball 70 is embedded between the first guide slot 150 and the second guide slot 160, so as to limit the first ball 70 from being separated from the first rail, and thus the first ball 70 can be used to reduce the friction between the mounting bracket 30 and the first base 40.

Preferably, referring to fig. 3 and 4, the second guide grooves 160 are provided in three, wherein two second guide grooves 160 are provided on one side of the lens 20, that is, two second guide grooves 160 are provided on a lower side of one of the first mounting plate and the second mounting plate, and another second guide groove 160 is provided on the other side of the lens 20, that is, another second guide groove 160 is provided on a lower side of the other of the first mounting plate and the second mounting plate, more specifically, the separately provided second guide grooves 160 are provided between the two second guide grooves 160 provided in pairs in a direction perpendicular to the optical axis, and each second guide groove 160 is embedded with one first ball 70. Preferably, a line connecting the three first balls 70 is an isosceles triangle. With this design, three first ball 70 can form stable three point support structure to installing support 30, moreover, only need establish three first ball 70 and can form stable support to installing support 30, simplified the structure, reduced lens module 1's complexity.

Similarly, referring to fig. 3 and fig. 4, the second track may also be disposed on the first base 40, preferably, the first base 40 and the second base 80 cooperate to form the second track, for example, the second track may be formed by a third guide groove 170 and a fourth guide groove 180 cooperating with each other, the third guide groove 170 is disposed on a surface of the first base 40 facing the second base 80, the fourth guide groove 180 is disposed on a surface of the second base 80 facing the first base 40, and the second ball 110 is embedded between the third guide groove 170 and the fourth guide groove 180 for limiting the second ball 110 to separate from the second track, so that the second ball 110 can be used to reduce the friction between the first base 40 and the second base 80.

Preferably, referring to fig. 2-4, three fourth guide grooves 180 are provided, wherein two fourth guide grooves 180 are provided on one side of the lens 20, another fourth guide groove 180 is provided on the other side of the lens 20, a separately provided fourth guide groove 180 is located between the two fourth guide grooves 180 arranged in pairs in a direction perpendicular to the optical axis, and a second ball 110 is embedded in each fourth guide groove 180. Preferably, the line connecting the three second rolling balls 110 is an isosceles triangle. With this design, three second balls 110 can form stable three-point support structure to first base 40, moreover, only need establish three second balls 110 and can form stable support to first base 40, simplified the structure, reduced lens module 1's complexity.

Preferably, the housing includes a housing portion 10, a bottom plate 140 disposed at a bottom end of the housing portion 10, and a cover plate 130 disposed at a top end of the housing portion, and the second base 80 is fixed to the bottom plate 140. Specifically, two first mounting grooves and two second mounting grooves are formed in the bottom surface of the second base 80, and the two first metal plates 60 and the two second metal plates 100 are respectively embedded in the two first mounting grooves and the two second mounting grooves and then fix the second base 80 to the bottom plate 140, so that the two first metal plates 60 and the two second metal plates 100 are effectively fixed in the two first mounting grooves and the two second mounting grooves.

Specifically, referring to fig. 1 and fig. 2, the circuit board 120 includes a first portion fixed to the frame portion 10 and a second portion fixed to the cover plate 130, preferably, the first portion and the second portion are perpendicular to each other, wherein the first coil 52 is fixed to a surface of the first portion close to the first magnetic steel 51, and the second coil 92 is fixed to a surface of the second portion close to the second magnetic steel 91.

More specifically, referring to fig. 1 and fig. 2, an opening may be disposed on the frame body 10 or the cover plate 130, so that the first portion or the second portion can extend to the outside of the housing through the opening to be connected to an external power source, so as to connect the lens module 1 to the external power source and obtain sufficient electric energy.

Referring to fig. 8-10, a second embodiment of the present invention relates to a lens module 1, which is improved based on the first embodiment, and the main improvement is: the mounting bracket 30, the second base 80, and the first base 40 are sequentially stacked, and the first base 40 is fixed to the housing, specifically, the first base 40 is fixed to the bottom plate 140, so that the first metal plate 60 and the second metal plate 100 can be fixed to the first base 40. A first ball 70 is disposed between the first base 40 and the second base 80, and a second ball 110 is disposed between the second base 80 and the mounting bracket 30. Wherein the surface of the first base 40 facing the second base 80 is provided with a first track in which the first ball 70 slides, and the surface of the second base 80 facing the mounting bracket 30 is provided with a second track in which the second ball 110 slides.

Of course, referring to fig. 9 and 10, the first track may be disposed on the first base 40, and preferably, the first base 40 and the second base 80 cooperate to form the first track, for example, the first track may be formed by a first guide groove 150 and a second guide groove 160, specifically, the first guide groove 150 is disposed on a surface of the second base 80 facing the first base 40, the second guide groove 160 is disposed on a surface of the first base 40 facing the second base 80, and the first ball 70 is embedded between the first guide groove 150 and the second guide groove 160, so as to limit the first ball 70 from being separated from the first track, and thus the first ball 70 can be used to reduce the friction between the first base 40 and the second base 80.

Preferably, referring to fig. 8 to 10, the second guide grooves 160 are provided in three, two second guide grooves 160 are provided at one side of the lens 20, and another second guide groove 160 is provided at the other side of the lens 20, and more specifically, the separately provided second guide grooves 160 are located between the two second guide grooves 160 provided in pairs in a direction perpendicular to the optical axis, and one first ball 70 is inserted into each second guide groove 160. Preferably, a line connecting the three first balls 70 is an isosceles triangle. With this design, three first ball 70 can form stable three point support structure to installing support 30, moreover, only need establish three first ball 70 and can form stable support to installing support 30, simplified the structure, reduced lens module 1's complexity.

Similarly, referring to fig. 9 and 10, a second rail can also be disposed on the mounting bracket 30, and preferably, the second base 80 and the mounting bracket 30 cooperate to form the second rail. For example, the second track may be formed by a third guide groove 170 and a fourth guide groove 180, the third guide groove 170 is disposed on the surface of the mounting bracket 30 facing the second base 80, the fourth guide groove 180 is disposed on the surface of the second base 80 facing the mounting bracket 30, and the second ball 110 is inserted between the third guide groove 170 and the fourth guide groove 180 for limiting the second ball 110 from being separated from the second track, so that the friction between the second base 80 and the mounting bracket 30 can be reduced by the second ball 110.

Preferably, referring to fig. 8-10, the number of the fourth guide grooves 180 is three, two fourth guide grooves 180 are disposed on one side of the lens 20, another fourth guide groove 180 is disposed on the other side of the lens 20, the separately disposed fourth guide grooves 180 are located between the two fourth guide grooves 180 disposed in pairs in a direction perpendicular to the optical axis, and each fourth guide groove 180 is embedded with one second ball 110. Preferably, the line connecting the three second rolling balls 110 is an isosceles triangle. With this design, three second balls 110 can form stable three-point support structure to first base 40, moreover, only need establish three second balls 110 and can form stable support to first base 40, simplified the structure, reduced lens module 1's complexity.

Therefore, referring to fig. 8-10, the first balls 70 can be used to reduce the friction between the first base 40 and the second base 80, and the second balls 110 can be used to reduce the friction between the second base 80 and the mounting bracket 30, so as to facilitate the mounting bracket 30 to effectively move relative to the second base 80 and the second base 80 relative to the first base 40.

Other structures of this embodiment are the same as those of the first embodiment, and are not described herein.

While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.