CN216485721U - Lens module and camera equipment - Google Patents

Abstract

The utility model belongs to the technical field of lenses, and discloses a lens module and a camera device. The lens module includes a first lens assembly and a second lens assembly. The first lens assembly includes a first group and a mirror frame, and the mirror frame can be fixed on an external camera. The device casing, the mirror frame and the second lens assembly are all sleeved on the reference side wall of the first group, and the first group, the mirror frame and the second lens assembly are coaxially arranged; the camera equipment includes the above-mentioned lens module. The first group, the mirror frame and the second lens assembly use the same reference side wall as the positioning reference, which eliminates repeated positioning errors and improves the coaxiality, and the mirror frame is coaxial with the optical center outside the lens module, thus solving the problem of camera equipment. lens eccentricity problem.

Description

A lens module and camera equipment

technical field

The utility model relates to the technical field of lenses, in particular to a lens module and a camera device.

Background technique

In recent years, with the rapid development of modern science and technology such as electronic science and the Internet, the application fields of optical lenses are becoming more and more extensive. Computers, mobile phones, security surveillance cameras, in-vehicle visual systems, smart homes, and aerial photography drones have penetrated into many optical imaging fields closely related to human life.

In the prior art, since the coaxiality between the optical center of the lens module and the optical center of the imaging device cannot be guaranteed, the problem of eccentricity of the lens is likely to occur, thereby affecting the imaging quality.

Based on the above situation, it is urgent for us to design a lens module and a camera device to solve the above problems.

Utility model content

One objective of the present invention is to provide a lens module, which can improve the coaxiality of the first group, the mirror frame and the second lens assembly.

Another object of the present invention is to provide a camera device including the above-mentioned lens module, which can ensure that the optical center of the lens module is coaxial with the optical centers of other parts, and solves the problem of lens eccentricity.

For this purpose, the utility model adopts the following technical solutions:

In one aspect, a lens module is disclosed, including:

a first lens assembly, comprising a first group and a mirror frame, the mirror frame can be fixed on a casing of an external camera device, and the mirror frame is sleeved on the reference side wall of the first group;

The second lens assembly is sleeved on the reference side wall of the first group, and the first group, the mirror frame and the second lens assembly are coaxially arranged.

As a preferred solution, the second lens assembly is provided with an escape hole, the mirror frame is provided with an abutment platform, and the second lens assembly and the mirror frame are arranged in sequence along the direction away from the first group. The abutting platform penetrates through the abutment hole and abuts against the reference side wall.

As a preferred solution, the second lens assembly includes a sliding driving frame and a second group, the second group is sleeved on the first group, and the sliding driving frame is connected to the second group. The group is connected, and the sliding drive frame can drive the second group to move axially.

As a preferred solution, the first group is fixedly connected to the mirror frame.

As a preferred solution, the sliding driving frame is limited along the axial direction between the first group and the mirror frame, and the sliding driving frame is rotatably connected to the second group. When the sliding drive frame rotates around the axial direction, the second group can move along the axial direction.

As a preferred solution, one of the sliding drive frame and the second group is provided with a helical hole, and the other is provided with a sliding column, and the sliding column is slidably arranged on the spiral. inside the hole.

As a preferred solution, one of the second group and the mirror frame is provided with a guide hole, and the other is provided with a pin, and the pin is slidably arranged on the guide along the axial direction inside the hole.

As a preferred solution, the first group and the mirror frame are connected by a machine screw, and the machine screw is sunk in the mirror frame.

As a preferred solution, the first group is provided with a first stepped portion, the second lens assembly is provided with a second stepped portion corresponding to the first stepped portion, and the first stepped portion is provided on the second lens assembly. The portion abuts against the second stepped portion.

On the other hand, a camera device is also disclosed, which includes the above-mentioned lens module.

The beneficial effects of the utility model are as follows: a lens module and a camera device are provided. The first group of the lens module, the mirror frame and the second lens assembly use the same reference side wall as the positioning reference, which eliminates repeated positioning errors and improves the performance of the camera. Coaxiality, since the frame is coaxial with the optical center outside the lens module, the optical center of the lens module is coaxial with the external optical center, which solves the problem of lens eccentricity of the camera equipment and improves the imaging quality.

Description of drawings

The utility model will be described in further detail below according to the accompanying drawings and embodiments.

1 is a cross-sectional view of a lens module;

Fig. 2 is the structural representation of the lens module in the state of disassembling the mirror frame;

3 is a cross-sectional view of the frame.

In Figures 1 to 3:

1. The first lens assembly; 11, the first group; 111, the first step part; 112, the reference side wall; 12, the mirror frame; 121, the abutment table; 122, the guide hole;

2. The second lens assembly; 21. The sliding drive frame; 211, the screw hole; 212, the second step part; 22, the second group;

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only Some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or a fixed connection. It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two elements or an interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

As shown in FIG. 1 , this embodiment provides a lens module, including a first lens assembly 1 and a second lens assembly 2 , the first lens assembly 1 includes a first group 11 and a mirror frame 12 , and the mirror frame 12 can be fixed on The housing of the imaging device is coaxially arranged with the external optical center, the mirror frame 12 is sleeved on the reference side wall 112 of the first group 11 ; the second lens assembly 2 is also sleeved on the reference side wall 112 of the first group 11 , the first group 11 , the mirror frame 12 and the second lens assembly 2 are coaxially arranged with the reference side wall 112 of the first group 11 as the reference, which reduces the repeated positioning error and improves the coaxiality.

Specifically, as shown in FIG. 2 and FIG. 3 , the second lens assembly 2 is provided with an escape hole 221 , the mirror frame 12 is provided with an abutment table 121 , and the second lens assembly 2 and the mirror frame 12 are along the edge away from the first group 11 . The second lens assembly 2 is directly sleeved on the first group 11, and part of the reference side wall 112 is exposed from the position hole 221. The mirror frame 12 is sleeved on the second lens assembly 2, and the abutting table 121 penetrates through The vacant hole 221 is abutted against the reference side wall 112, and the structure is simple. In other embodiments of the present invention, the reference side wall 112 of the first group 11 can also be set to two upper and lower sections, the second lens assembly 2 is sleeved on the upper section of the first group 11, and the mirror frame 12 is sleeved on the upper part of the first group 11. The lower section of the first group 11 can also make the first group 11 , the mirror frame 12 and the second lens assembly 2 take the reference side wall 112 of the first group 11 as a common reference.

As shown in FIG. 1 and FIG. 2 , in this embodiment, the second lens assembly 2 includes a sliding drive frame 21 and a second group 22 , and the escape hole 221 is opened in the second group 22 , and the second group 22 Sleeved on the first group 11 , the sliding driving frame 21 is connected with the second group 22 and can drive the second group 22 to move in the axial direction, so as to adjust the focal length of the second group 22 .

In this embodiment, the first group 11 is fixedly connected with the mirror frame 12, which improves the structural stability. Specifically, a connection hole is formed on the abutment table 121 of the mirror frame 12, the machine screw 13 penetrates through the connection hole and is connected to the first group 11, and the head of the machine screw 13 is sunk in the connection hole to prevent the machine The screw 13 interferes with other parts. In other embodiments of the present invention, the first group 11 can also be connected to the mirror frame 12 through pins.

Specifically, the sliding driving frame 21 is sleeved on the first group 11, the cross section of the sliding driving frame 21 is set in a stepped shape, and the steps of the stepped sliding driving frame 21 abut on the bottom of the mirror frame 12, and the first The bottom of one group 11 is provided with an outer folded eave, and the bottom of the sliding drive frame 21 abuts against the outer folded eave of the first group 11 , so that the sliding driving frame 21 is axially limited, and the sliding driving frame 21 Rotationally connected to the second group 22 . When the sliding driving frame 21 rotates, the second group 22 can move in the axial direction to realize focusing. In other embodiments of the present invention, the second group 22 can also be directly connected to the execution end of a driving member such as an electric push rod, and the driving member can drive the second group 22 to move in the axial direction.

In this embodiment, the sliding drive frame 21 is provided with a spiral hole 211, the second group 22 is provided with a sliding column 222, the sliding column 222 is slidably arranged in the spiral hole 211, the sliding column 222 and the spiral hole The specific number of 211 can be set according to actual needs, as long as the sliding columns 222 are in one-to-one correspondence with the helical holes 211 . When the sliding driving frame 21 rotates, the sliding column 222 rotates in the helical hole 211. Since the sliding driving frame 21 is axially limited between the first group 11 and the mirror frame 12, the second group 22 is axially limited. move. In other embodiments of the present invention, the sliding drive frame 21 is provided with a sliding column 222, the second group 22 is provided with a spiral hole 211, and the sliding column 222 is slidably disposed in the spiral hole 211; The driving frame 21 and the second group 22 can also be screwed together, and both can realize the axial movement of the second group 22 .

As shown in FIG. 2 and FIG. 3 , the mirror frame 12 is provided with a guide hole 122 extending in the axial direction, and the second group 22 is provided with a pin shaft 223 . Group 22 provides guidance. In other embodiments of the present invention, the mirror frame 12 is provided with a pin shaft 223, the second group 22 is provided with a guide hole 122, and the pin shaft 223 is slidably arranged in the guide hole 122 to achieve the same guiding function.

As shown in FIG. 1 , in this embodiment, the first group 11 is provided with a first stepped portion 111 , and the sliding drive frame 21 of the second lens assembly 2 is provided with a one-to-one correspondence with the first stepped portion 111 . The number of the second step portion 212 , the first step portion 111 and the second step portion 212 can be set according to actual needs, as long as they are in one-to-one correspondence, the first step portion 111 abutting the second step portion 212 can be a sliding drive frame 21 provides positioning and improves assembly accuracy.

This embodiment also provides a camera device, which includes a casing and the above-mentioned lens module. The mirror frame 12 is fixed to the casing. Since the first group 11 , the mirror frame 12 and the second lens assembly 2 have high coaxiality, the The mirror frame 12 is coaxial with the optical center outside the lens module, so that the optical center of the lens module is coaxial with the external optical center, which solves the problem of lens eccentricity of the camera equipment and improves the imaging quality.

In the description herein, it should be understood that the terms "up", "down", "left", "right", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of description. and simplifies operation, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

In the description of this specification, reference to the description of the terms "an embodiment", "example" etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

In addition, the above are only the preferred embodiments of the present invention and the applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made to those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present utility model has been described in detail through the above embodiments, the present utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present utility model. Rather, the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A lens module, comprising:

the first lens assembly (1) comprises a first group (11) and a lens frame (12), wherein the lens frame (12) can be fixed on a shell of an external camera device, and the lens frame (12) is sleeved on a reference side wall (112) of the first group (11);

the second lens assembly (2) is sleeved on the reference side wall (112) of the first group (11), and the first group (11), the lens frame (12) and the second lens assembly (2) are coaxially arranged.

2. The lens module as claimed in claim 1, wherein the second lens assembly (2) has a recess (221), the lens frame (12) has a receiving platform (121), the second lens assembly (2) and the lens frame (12) are sequentially disposed along a direction away from the first group (11), and the receiving platform (121) penetrates through the recess (221) and abuts against the reference sidewall (112).

3. The lens module as recited in claim 1, wherein the second lens assembly (2) comprises a sliding driving frame (21) and a second group (22), the second group (22) is sleeved on the first group (11), the sliding driving frame (21) is connected with the second group (22), and the sliding driving frame (21) can drive the second group (22) to move axially.

4. A lens module according to claim 3, characterized in that said first group (11) is fixedly connected to said frame (12).

5. The lens module as claimed in claim 4, wherein the sliding driving frame (21) is axially retained between the first group (11) and the lens frame (12), the sliding driving frame (21) is rotatably connected to the second group (22), and the second group (22) can move axially when the sliding driving frame (21) rotates around the axial direction.

6. The lens module as claimed in claim 5, wherein one of the sliding driving frame (21) and the second group (22) is provided with a spiral hole (211), and the other is provided with a sliding column (222), and the sliding column (222) is slidably disposed in the spiral hole (211).

7. The lens module as recited in claim 5, characterized in that one of the second group (22) and the lens frame (12) is provided with a guide hole (122), and the other is provided with a pin (223), and the pin (223) is slidably disposed in the guide hole (122) along the axial direction of the lens frame (12).

8. The lens module as recited in claim 4, characterized in that the first group (11) is connected with the frame (12) by a screw (13), the screw (13) being sunk in the frame (12).

9. The lens module according to claim 1, wherein a first step portion (111) is disposed on the first group (11), a second step portion (212) corresponding to the first step portion (111) is disposed on the second lens assembly (2), and the first step portion (111) abuts against the second step portion (212).

10. An image pickup apparatus comprising the lens module according to any one of claims 1 to 9.

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