WO2022000534A1

WO2022000534A1 - Lens module and electronic device

Info

Publication number: WO2022000534A1
Application number: PCT/CN2020/101461
Authority: WO
Inventors: 郭顺; 史卫领; 王洪兴
Original assignee: 诚瑞光学(常州)股份有限公司
Priority date: 2020-06-30
Filing date: 2020-07-10
Publication date: 2022-01-06
Also published as: CN213457488U

Abstract

The present utility model provides a lens module and an electronic device. The electronic device comprises the lens module; the lens module comprises a housing provided with an accommodating cavity, a lens provided in the accommodating cavity and movable relative to the housing, and a linear driver connecting the lens to the housing; the housing comprises a bottom plate and a side plate provided on the bottom plate and arranged circumferentially around the lens; a driving force provided by the linear driver is along an extension direction of the linear driver; the linear driver is used for driving the lens to do tilt and deflection movements to achieve anti-shake. According to the lens module, since the linear driver is provided between the housing and the lens, the linear driver gives the lens a driving force when the lens shakes, and drives the lens to do the tilt and deflection movements to return to the best shooting position; according to this design, the position of the lens can be adjusted in all directions without additionally providing a fulcrum structure, thereby achieving the anti-shake purpose; the operation is convenient, and the practicability is high.

Description

Lens modules and electronic equipment

technical field

The utility model relates to the technical field of lenses, in particular to a lens module with an anti-shake function and an electronic device.

Background technique

In recent years, high-performance lenses have been installed in electronic products such as smartphones, tablets, and cameras. In the process of use, the vibration of the optical path is often caused by external forces or hand-held shaking (that is, the optical axis of the lens module deviates from the optimal optical axis path), resulting in blurred photos taken. In order to ensure the quality of the captured images quality, the lens usually has anti-shake function.

technical problem

In the existing anti-shake solutions, a vibration compensation device is usually installed on the optical lens group to make the captured image clear, but at present, most of these devices are equipped with an electromagnetic pushing device on the side of the lens and a fulcrum structure at the bottom. The combined effect of the two realizes the anti-shake function.

technical solutions

The first objective of the present invention is to provide a lens module, which can realize the anti-shake function without setting a fulcrum structure.

The technical solution of the present utility model is as follows: a lens module, the lens module includes a housing provided with a accommodating cavity, a lens disposed in the accommodating cavity and movable relative to the housing, and a lens connected to the housing A linear driver for a lens and the casing, the casing includes a bottom plate and a side plate arranged on the bottom plate and circumferentially surrounding the lens, the driving force provided by the linear driver is an extension along the linear driver There are at least two linear actuators, and two or more of the linear actuators work together on the lens to drive the lens to tilt and deflect.

As an improvement, there are at least three linear actuators, and they are evenly spaced between the lens and the housing.

As an improvement, one end of the linear driver is connected to the side of the lens facing the base plate, and the other end of the linear driver is connected to the side of the base plate that faces the lens.

As an improvement, the linear driver is vertically disposed between the lens and the base plate along the optical axis direction of the lens.

As an improved manner, the linear actuator is obliquely disposed between the lens and the base plate along the optical axis direction of the lens.

As an improvement, the linear actuators are arranged at equal intervals between the side surface of the lens and the side plate of the housing.

As an improvement, the linear driver includes a motor fixed on the base plate, a lead screw threadedly connected to the motor, and a bracket connected to the lead screw, one end of the bracket is connected to the lead screw, and the other end is bent The fold extends to the bottom of the lens to support the lens and drive the lens to move.

As an improvement, the housing further includes a top plate spaced from the bottom plate, the bottom plate, the top plate and the side plate are enclosed to form the receiving cavity, and the top plate is provided with a A light-passing hole communicated with the accommodating cavity, and the light-passing hole is disposed facing the lens.

As an improvement, the lens module further includes an elastic support member sleeved on the lens, and the elastic support member is arranged around the lens to fix the lens to the side plate.

The second object of the present invention is to provide an electronic device, which includes the above-mentioned lens module.

beneficial effect

The beneficial effects of the present utility model are:

In the lens module of the present invention, at least two linear drivers are arranged between the casing and the lens. When the lens shakes, two or more linear drivers act together on the lens to give the lens a driving force and drive the lens. The tilting and deflection movement returns to the best shooting position. This design does not require additional fulcrum structure, and the position of the lens can be adjusted in all directions, so as to achieve the purpose of anti-shake, convenient operation and strong practicability.

Since the electronic device of the utility model is provided with the above-mentioned lens module, when the lens shakes, the position of the lens can be adjusted in all directions, so as to achieve the purpose of anti-shake, the operation is convenient, and the practicability is strong.

Description of drawings

1 is a schematic structural diagram of a lens module according to Embodiment 1 of the present invention;

2 is an exploded view of the lens module of Embodiment 1 of the present invention;

Fig. 3 is the assembly drawing of the lens, the linear driver and the base plate of the utility model embodiment 1;

4 is an assembly schematic diagram of a lens, an elastic support member and a side plate of the lens module according to Embodiment 1 of the present invention;

5 is a schematic structural diagram of an elastic support member according to Embodiment 1 of the present invention;

6 is an assembly diagram of a lens, a linear driver and a base plate according to Embodiment 2 of the present invention.

Description of drawings:

1. Lens module;

10. Shell; 11. Receiving cavity; 12. Light-passing hole; 13. Bottom plate; 14. Top plate; 15. Side plate;

20. Lens;

30, linear drive; 33, lead screw; 34, motor; 35, bracket;

40, elastic support; 41, inner frame; 42, outer frame; 43, elastic connecting beam;

50. Flexible circuit boards.

Embodiments of the present invention

The present utility model will be further described below with reference to the accompanying drawings and embodiments.

It should be noted that all directional indications (such as up, down, left, right, front, back, inner, outer, top, bottom...) in the embodiments of the present invention are only used to explain the If the specific posture changes, the directional indication also changes accordingly.

It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Example 1

Please refer to FIG. 1 to FIG. 3 , this embodiment provides an electronic device, the electronic device includes a lens module 1 with an anti-shake function. The lens module 1 includes a casing 10 provided with a receiving cavity 11 , a lens 20 disposed in the receiving cavity 11 and movable relative to the casing 10 , and a linear driver 30 connecting the lens 20 and the casing 10 . The linear driver 30 is provided with at least There are two, two or more linear actuators 30 that act together on the lens 20 to drive the lens 20 to tilt and deflect. When the lens 20 shakes, the linear actuator 30 provides a driving force to the lens 20 to drive the lens 20 to tilt and deflect. Returning to the optimal shooting position, the purpose of anti-shake can be achieved because the linear driver 30 is provided. Therefore, the lens module 1 of this embodiment can adjust the position of the lens 20 in all directions without additionally setting a fulcrum structure, so as to achieve anti-shake. Shaking purpose, easy to operate, strong practicability. Moreover, the linear driver 30 also plays a supporting role, and the supporting lens 20 is suspended in the receiving cavity 11 .

Understandably, the electronic device may be a smart phone, or a tablet computer, or a camera.

The material of the housing 10 is not limited. For example, it can be plastic, and the shape of the housing 10 is adapted to the shape of the lens 20. In this embodiment, the shape of the housing 10 is square.

1-3, the housing 10 includes a bottom plate 13, a top plate 14 spaced from the bottom plate 13, and a side plate 15 connecting the bottom plate 13 and the top plate 14 and circumferentially disposed around the lens 20. The top plate 14 is provided with a light-passing hole therethrough. 12. The light-passing hole 12 is arranged facing the lens 20. The bottom plate 13, the top plate 14 and the side plate 15 are enclosed to form a receiving cavity 11. The receiving cavity 11 is communicated with the light-passing hole 12. The linear driver 30 and the lens 20 are arranged in the receiving cavity 11. , the linear actuator 30 can be arranged between the bottom plate 13 and the lens 20, or between the side plate 15 and the lens 20, as long as the lens 20 can be driven to tilt and deflect to achieve the purpose of anti-shake. In the present embodiment, the linear driver 30 is arranged between the base plate 13 and the lens 20 . In this way, the size of the lens module 1 in the width direction does not need to be changed, and one end of the linear driver 30 is connected to the side of the lens 20 facing the base plate 13 . , the other end of the linear driver 30 is connected to the side of the base plate 13 facing the lens 20. After the linear driver 30 receives the command, it generates a driving force along the extension direction of the linear driver 30. Under the action of the multiple linear drivers 30, the lens 20 operates Yaw rotation to achieve anti-shake function. The linear drive 30 may be a linear motor or a linear motor.

Further, the linear actuator 30 is obliquely disposed between the lens 20 and the base plate 13 along the optical axis direction of the lens 20 . This design is more favorable for the linear actuator 30 to provide the lens 20 with a driving force for driving the lens 20 to tilt and deflect. Of course, the linear actuator 30 is not limited to the above arrangement. For example, the linear actuator 30 is vertical along the direction of the optical axis of the lens 20. It is arranged between the lens 20 and the bottom plate 13 .

It can be understood that the top plate 14 is not necessary, and it is also feasible not to provide the top plate 14 . Likewise, the light-passing holes 12 are not necessary. For example, when the top plate 14 is a transparent cover plate, the light-passing holes 12 do not need to be provided.

It can be understood that the number of linear actuators 30 is not fixed, and can be set according to actual optical requirements, and two or more can be provided. In this embodiment, three linear actuators 30 are provided, and the three linear actuators 30 are arranged along the lens 20 The circumferential intervals are evenly distributed, and the three linear actuators 30 can basically satisfy the shake compensation of the lens 20 in all directions. In this way, the number of the linear actuators 30 is not too large. In addition, the volume of the linear actuators 30 is not large. It is large and light in weight. Therefore, the overall structure of the lens module 1 will not become very heavy due to the provision of the linear driver 30 .

It should be noted that the installation point of the linear actuator 30 is determined by the optical requirements. By controlling the position of each linear actuator 30, the lens 20 can reach the specified orientation under the joint force of each linear actuator 30, that is to say, the lens 20 can It moves under the driving force of the linear driver 30 so that its optical axis returns to the axis position of the light-passing hole 12 , so as to achieve the purpose of anti-shake.

Referring to FIG. 2 , FIGS. 4 to 5 , in order to better support the lens 20 , the lens module 1 further includes an elastic support member 40 disposed in the receiving cavity 11 to support the lens 20 to be suspended in the receiving cavity 11 . The elastic support member The lens 40 is sleeved on the lens 20 and disposed around the lens 20 , and the elastic support 40 fixes the lens 20 on the side plate 15 . The elastic support member 40 of this embodiment includes an inner frame 41 sleeved on the lens 20 , an outer frame 42 disposed on the periphery of the inner frame 41 and connected to the side plate 15 , and an elastic connecting beam 43 connecting the inner frame 41 and the outer frame 42 . The inner frame 41, the outer frame 42 and the elastic connecting beam 43 are integrally formed, the shape of the inner frame 41 is set to be circular, the shape of the outer frame 42 is set to be square, the elastic connecting beam 43 is set to an arc shape, and the elastic connecting beam 43 is set to four The inner frame 41 is evenly distributed with four connection points in the circumferential direction. Similarly, the outer frame 42 is evenly distributed with four connection points in the circumferential direction. These four connection points correspond to the four connection points of the inner frame 41 one by one. Both ends of the elastic connecting beams 43 are respectively connected with a connecting point of the inner frame 41 and a connecting point of the outer frame 42, but each elastic connecting beam 43 is not connected to the corresponding connecting point of the inner and outer frames 42, but is connected to a staggered position. Connection points, for example, the connection points of the inner frame 41 are the first connection point, the second connection point, the third connection point, the fourth connection point, and the one-to-one corresponding connection points of the outer frame 42 are the fifth connection point, the sixth connection point The connection point, the seventh connection point, and the eighth connection point, one of the elastic connection beams 43 is connected to the first connection point and the sixth connection point, and the other elastic connection beams 43 are connected by dislocation in sequence, so that the elastic connection beams 43 do not affect each other. At the same time, the length of the elastic connecting beam 43 is extended as much as possible, which further reduces the rigidity of the elastic connecting beam 43 and facilitates the movement of the lens 20. When the lens 20 moves, part of the elastic connecting beam 43 is compressed, and part of the elastic connecting beam 43 is compressed. Elongation, of course, each elastic connecting beam 43 can also be connected to the corresponding connection point of the inner and outer frames 42, for example, an elastic connecting beam 43 is connected to the first connection point and the fifth connection point, and the connection point of the inner frame 41 and the outer frame 42 are connected. The positions of the connection points of the frame 42 do not necessarily have to be directly aligned, and may be staggered.

Referring to FIGS. 1 to 3 , the lens module 1 further includes a flexible circuit board 50 electrically connected to the lens 20 , and the flexible circuit board 50 is connected to the lens 20 through the housing 10 . The flexible circuit board 50 is used to provide power to devices such as the lens 20 and the linear driver 30 .

Example 2

Referring to 6, the difference between this embodiment and Embodiment 1 lies in the connection method between the linear driver 30 and the casing 10 and the lens 20, and other parts are the same as the embodiment, and are not repeated here.

The linear driver 30 is arranged at equal intervals between the side surface of the lens 20 and the side plate 15 of the housing 10 . The bracket 35, one end of the bracket 35 is connected with the lead screw 33, and the other end is bent and extended to the bottom of the lens 20 to support the lens 20, and drive the lens 20 to move, after the motor 34 receives the command, the motor 34 rotates, drives the lead screw 33 to rotate, The rotary motion is linear motion, and the bracket 35 moves linearly with the lead screw 33 , thereby driving the lens 20 to move.

It can be understood that the linear driver 30 is not limited to the above structure, and the linear driver 30 can also be a linear motor, and can also be a linear motor.

The above are only the embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these belong to The scope of protection of the utility model.

Claims

A lens module, characterized in that the lens module comprises a housing provided with a accommodating cavity, a lens disposed in the accommodating cavity and movable relative to the housing, and a lens connecting the lens and the A linear driver of a casing, the casing includes a bottom plate and a side plate arranged on the bottom plate and circumferentially arranged around the lens, the driving force provided by the linear driver is along the extension direction of the linear driver, the There are at least two linear actuators, and two or more of the linear actuators act together on the lens to drive the lens to tilt and deflect.
The lens module according to claim 1, wherein at least three linear actuators are provided, and they are uniformly spaced between the lens and the housing.
The lens module according to claim 1, wherein one end of the linear driver is connected to the side of the lens facing the base plate, and the other end of the linear driver is connected to the side of the base plate facing the lens connect.
The lens module according to claim 3, wherein the linear driver is vertically disposed between the lens and the base plate along the optical axis direction of the lens.
The lens module according to claim 3, wherein the linear driver is obliquely disposed between the lens and the base plate along the optical axis direction of the lens.
The lens module according to claim 1, wherein the linear drivers are arranged at equal intervals between the side surface of the lens and the side plate of the housing.
The lens module according to claim 6, wherein the linear driver comprises a motor fixed on the base plate, a lead screw threadedly connected to the motor, and a bracket connected to the lead screw, and one end of the bracket is connected to the lead screw. The lead screw is connected, and the other end is bent and extended to the bottom of the lens to support the lens and drive the lens to move.
The lens module according to claim 1, wherein the housing further comprises a top plate spaced from the bottom plate, and the bottom plate, the top plate and the side plate are enclosed to form the receiving cavity, The top plate is provided with a light-passing hole communicating with the accommodating cavity, and the light-passing hole is disposed facing the lens.
The lens module according to claim 1, wherein the lens module further comprises an elastic support member sleeved on the lens, and the elastic support member is arranged around the lens to fix the lens on the lens. the side panel.
An electronic device, wherein the electronic device comprises the lens module according to any one of claims 1 to 9.