CN209387980U - Lens module - Google Patents

Abstract

A kind of lens module, including lens barrel and the lens set being contained in lens barrel and washer, lens barrel includes the second barrel for being provided with the first barrel of light hole and extending from the bending of the first barrel, second barrel includes the first inner sidewall close to optical axis and the first lateral wall far from optical axis, washer includes the second inner sidewall close to optical axis and the second lateral wall far from optical axis, at least one first clamping portion is provided on first inner sidewall, at least one second clamping portion is provided on second lateral wall, first clamping portion is fastened in corresponding second clamping portion, in this way, even if the external diameter circularity of washer is poor, also the assembly that will not influence washer and lens barrel is fixed, so as to weaken because of the poor influence to assembling of washer outer diameter circularity, and, the cooperation at washer and lens barrel can also greatly be improved, allow washer more firmly It is assembled in lens barrel, so as to improve the overall performance of lens module.

Description

Lens module

【Technical field】

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

【Background technique】

In recent years, with the development of camera technology and the rise of electronic products with camera functions, optical camera modules are widely used in various products.

Traditionally, a lens module includes a lens barrel, a lens group and a gasket accommodated in the lens barrel. In order to improve the overall performance of the lens module, the gasket needs to be firmly assembled in the lens barrel. However, when the gasket is actually produced, the roundness of the outer diameter of the gasket is often poor, which easily leads to poor installation reliability of the gasket in the lens barrel, thereby reducing the overall performance of the lens module.

Therefore, it is necessary to study a lens module with a new structure.

【Content of utility model】

The utility model aims to solve one of the technical problems existing in the prior art, and provides a novel lens module.

In order to achieve the above object, the utility model provides a lens module, the lens module includes a lens barrel and a lens group accommodated in the lens barrel, the lens group includes a gasket, and the lens barrel includes a The first cylinder wall of the light through hole and the second cylinder wall bent and extended from the first cylinder wall, the second cylinder wall includes a first inner sidewall close to the optical axis and a first outer side away from the optical axis wall, the gasket includes a second inner wall close to the optical axis and a second outer wall far away from the optical axis, the first inner wall is provided with at least two The direction of the optical axis is concave, and the second outer wall is provided with at least two bosses protruding from the second outer wall in a direction away from the optical axis, and the number of the bosses is different from that of the optical axis. The number of the grooves is greater than the number of the grooves, and the grooves are engaged with the boss so that the gasket is fixedly connected with the lens barrel.

Optionally, a plurality of the grooves are arranged at equal intervals along the circumferential direction of the first inner sidewall; a plurality of the bosses are arranged at equal intervals along the circumferential direction of the second outer sidewall.

Optionally, the gasket includes an object side close to the object side, an image side opposite to the object side, and a connection surface connecting the object side and the image side and away from the optical axis, and the boss is formed from the The connection face is formed as a protrusion in a direction away from the optical axis, and in a direction parallel to the optical axis, the thickness of the boss is smaller than the thickness of the washer.

Optionally, the boss is flush with the side of the object.

Optionally, the boss is flush with the side of the image.

Optionally, the number of the bosses is equal to the number of the grooves.

Optionally, the lens group includes a first lens arranged on the object side of the gasket and a second lens arranged on the image side of the gasket, the first lens includes a first optical part for imaging and a first peripheral portion extending outward from the first optical portion;

The second lens includes a second optical portion for imaging and a second peripheral portion extending outward from the second optical portion;

The washers abut against the first peripheral portion and the second peripheral portion, respectively.

The beneficial effects of the utility model are: the lens module of the utility model includes a lens barrel and a lens group and a gasket accommodated in the lens barrel, and the lens barrel includes a first barrel wall provided with a light hole and a self- The first cylinder wall bends and extends the second cylinder wall, the second cylinder wall includes a first inner sidewall close to the optical axis and a first outer sidewall away from the optical axis, and the gasket includes a first outer sidewall close to the optical axis The second inner side wall of the shaft and the second outer side wall far away from the optical axis, the first inner side wall is provided with at least one first locking part, and the second outer side wall is provided with at least one second locking part each of the first snapping portions corresponds to one of the second snapping portions, and the first snapping portion is snapped into the corresponding second snapping portion, so that the washer and the The lens barrel is fixedly connected. In this way, even if the roundness of the outer diameter of the gasket is poor, it will not affect the assembly and fixation of the gasket and the lens barrel, so that the influence of the poor roundness of the outer diameter of the gasket on the assembly can be weakened, and the connection between the gasket and the lens barrel can be greatly improved. The cooperation at the lens barrel enables the gasket to be more firmly assembled in the lens barrel, thereby improving the overall performance of the lens module.

【Description of drawings】

Fig. 1 is the structural representation of lens module in the utility model;

Fig. 2 is the structural representation of the lens barrel in the lens module in the utility model;

Fig. 3 is a top view of the lens barrel shown in Fig. 2;

Fig. 4 is the structural representation of the washer in the lens module in the utility model;

Figure 5 is a top view of the gasket shown in Figure 4;

FIG. 6 is a cross-sectional view of the gasket shown in FIG. 4 .

【Detailed ways】

Below in conjunction with Fig. 1 to Fig. 6 the utility model is described in detail.

As shown in Figures 1 to 6, the present utility model relates to a lens module 100, the lens module 100 includes a lens barrel 110 and a lens group 120 accommodated in the lens barrel 110, the lens group 120 includes Gasket 121, the lens barrel 110 includes a first barrel wall 111 provided with a light through hole 111a and a second barrel wall 112 bent and extended from the first barrel wall 111, the second barrel wall 112 includes a The first inner sidewall 112a of the axis OO' and the first outer sidewall 112b away from the optical axis OO', the gasket 121 includes a second inner sidewall 121a close to the optical axis OO' and a second inner sidewall 121a away from the optical axis OO' The second outer wall 121b of the first inner wall 112a is provided with at least two grooves 112a1 recessed from the first inner wall 112a in a direction away from the optical axis OO', the second outer wall 121b is provided with at least two bosses 121b1 protruding from the second outer wall 121b in a direction away from the optical axis OO', the number of bosses 121b1 is not more than the number of grooves 112a1, The groove 112a1 is engaged with the boss 121b1 so that the gasket 121 is fixedly connected with the lens barrel 110 .

In the lens module 100 with the structure of this embodiment, at least two grooves 112a1 are provided on the first inner wall 112a of the second barrel wall 112 of the lens barrel 110, and at least two grooves 112a1 are provided on the second outer wall 121b of the gasket 121. There are at least two bosses 121b1, and the groove 112a1 is engaged with the bosses 121b1 so that the gasket 121 is fixedly connected to the lens barrel 110. In this way, even if the outer diameter of the gasket 121 is poor in roundness, It will not affect the assembly and fixation of the gasket 121 and the lens barrel 110, so that the impact on the assembly caused by the poor roundness of the outer diameter of the gasket 121 can be weakened, and the cooperation between the gasket 121 and the lens barrel 110 can be greatly improved, so that the gasket 121 can be more firmly assembled in the lens barrel 110 , thereby improving the overall performance of the lens module 100 .

As shown in Figure 1, Figure 2 and Figure 4, in order to improve the fixing strength of the gasket 121 in the lens barrel 110, so as to further improve the overall performance of the lens module 100, a plurality of grooves 112a1 can be formed along the first inner wall 112a are arranged at equal intervals in the circumferential direction. Correspondingly, a plurality of bosses 121b1 may be arranged at equal intervals along the circumferential direction of the second outer wall 121b.

As shown in Fig. 1, Fig. 4, Fig. 5 and Fig. 6, the gasket 121 includes an object side 121c close to the object side, an image side 121d opposite to the object side 121c, and an image side 121d connecting the object side 121c and the image side. The connecting surface 121e on the side 121d and away from the optical axis OO', the boss 121b1 is formed by protruding from the connecting surface 121e in a direction away from the optical axis OO', and in a direction parallel to the optical axis OO', the convex The thickness of the stage 121b1 is smaller than that of the washer 121 .

As shown in FIG. 4 and FIG. 6 , the boss 121b1 is flush with the object side 121c. Of course, in addition to this, the boss 121b1 can also be flush with the image side 121d, which can be determined according to actual needs.

As shown in Figure 3 and Figure 5, the number of said bosses 121b1 is equal to the number of said grooves 112a1, for example, as shown in Figure 3, the number of grooves 112a1 is 12, as shown in Figure 5, the number of bosses The number of 121b1 can also be 12, of course, the number of bosses 121b1 and grooves 112a1 is not limited thereto, and can be determined according to actual needs.

As shown in FIG. 1 , the lens group 120 includes a first lens 122 arranged on the object side of the gasket 121 and a second lens 123 arranged on the image side of the gasket 121, the first lens 122 includes The first optical portion 122a for imaging and the first peripheral portion 122b extending outward from the first optical portion 122a. The second lens 123 includes a second optical portion 123a for imaging and a second peripheral portion 123b extending outward from the second optical portion 123a. The gasket 121 is in contact with the first peripheral portion 122b and the second peripheral portion 123b, respectively. Of course, the number of lenses included in the lens set 120 is not limited thereto, and those skilled in the art can determine the specific number of lenses included in the lens set 120 according to actual needs.

What has been described above is only the embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, improvements can also be made without departing from the inventive concept of the utility model, but these all belong to Protection scope of the present utility model.

Claims (7)

1. a kind of lens module, the lens module includes lens barrel and the lens set that is contained in the lens barrel, the eyeglass Group includes washer, and the lens barrel includes second for being provided with the first barrel of light hole and extending from first barrel bending Barrel, second barrel include the first inner sidewall close to optical axis and the first lateral wall far from the optical axis, the pad Circle includes the second inner sidewall close to the optical axis and the second lateral wall far from the optical axis, which is characterized in that described the It is provided at least two grooves being recessed from first inner sidewall to the direction far from the optical axis on one inner sidewall, described the At least two boss protruded from second lateral wall to the direction far from the optical axis are provided on two lateral walls, it is described convex The quantity of platform is not more than the quantity of the groove, and the groove and the boss are connected together so that the washer and the mirror Cylinder is fixedly connected.

2. lens module according to claim 1, which is characterized in that week of multiple grooves along first inner sidewall To spaced set；Circumferential spaced set of multiple boss along second lateral wall.

3. lens module according to claim 1, which is characterized in that the washer include close to object side object side, with The opposite image side surface in the object side and the joint face for connecting the object side and the image side surface and separate optical axis, it is described convex Platform is convexed to form from the connection away from the direction of optical axis, and in a direction parallel to the optical axis, the thickness of the boss is small In the thickness of the washer.

4. lens module according to claim 3, which is characterized in that the boss is flushed with the object side.

5. lens module according to claim 3, which is characterized in that the boss is flushed with the image side surface.

6. lens module according to claim 1, which is characterized in that the quantity of the boss is equal to the number of the groove Amount.

7. lens module as claimed in any of claims 1 to 3, which is characterized in that the lens set includes being set to First eyeglass of the object side of the washer and the second eyeglass set on the image side of the washer, first eyeglass include at First optical section of picture and the first peripheral portion extended outward from first optical section；

Second eyeglass include the second optical section for imaging and extend outward from second optical section second Peripheral portion；

The washer is abutted with first peripheral portion and second peripheral portion respectively.