CN206431348U - Camera lens module - Google Patents

Abstract

The utility model provides a lens module, which comprises a lens barrel with a light hole, at least two lenses sequentially accommodated in the lens barrel, at least two retaining rings and a lens mounted between two adjacent lenses. shading film between. Each of the lenses includes a main body, a peripheral portion and a stepped portion for cooperating with and receiving the clamping wall; each of the snap rings includes an annular fixed wall fixed in the lens barrel and is formed by the A clamping wall that is bent and extended toward the optical axis of the lens barrel on the side of the fixed wall that is close to the light through hole; In the step portion; the projected portion of the shading sheet along the optical axis is located on the clamping wall. Compared with the related art, the lens module of the utility model has a flexible assembly mode, the air interval between the lenses is adjustable and the optical performance is good.

Description

Lens module

technical field

The utility model relates to the field of optical imaging, in particular to a lens module used in the field of photographing and video recording products.

Background technique

With the continuous development of science and technology, electronic devices are constantly developing towards intelligence. In addition to digital cameras, portable electronic devices such as tablet computers and mobile phones are also equipped with camera lens modules to meet the needs of users to take pictures at any time .

A lens module in the related art includes a lens barrel, at least two lenses accommodated in the lens barrel, and a pressure ring. The lens is fixed to the lens barrel, thereby realizing the fixing of the lens.

However, in the related art, the lenses of the lens module are stacked and stored in the lens barrel, and the assembly method is single, and the air space between the lenses cannot be adjusted, which affects the optical performance of the lens module.

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

Utility model content

The technical problem to be solved by the utility model is to provide a lens module with flexible assembly mode, adjustable air space between lenses and good optical performance.

In order to solve the above technical problems, the utility model provides a lens module, which includes a lens barrel with a light hole, at least two lenses sequentially accommodated in the lens barrel from the object side to the image side, and sandwiched between A shading sheet between two adjacent lenses, each of the lenses includes a main body for imaging and a peripheral portion surrounding the main body. The lens module also includes at least two snap rings for respectively fixing each of the lenses in the lens barrel, each of the snap rings includes a fixed wall fixed in the lens barrel and is fixed by the fixed The side of the wall close to the light through hole is a clamping wall that bends and extends toward the optical axis; each lens also includes a stepped portion disposed on the peripheral portion for cooperating with the clamping wall, The peripheral portion is abutted against and fixed on the fixed wall and the clamping wall is pressed against the stepped portion; the projection portion of the shading sheet along the optical axis is located on the clamping wall.

Preferably, the peripheral portion includes an object side, an image side, and a side wall connecting the object side and the image side, and the step portion is formed by a depression from the object side toward the image side.

Preferably, the stepped portion includes a first wall and a second wall bent and extended from the first wall, the first wall is connected to the side of the object, and the second wall is connected to the side wall, The fixing wall abuts against the side wall, and the clamping wall is spaced apart from the first wall.

Preferably, two adjacent snap rings are arranged at intervals.

Preferably, the snap ring further includes a recess provided on the side of the clamping wall facing the light through hole, and the fixed wall of one of the two adjacent snap rings is connected to the other snap ring. The recesses are facing and arranged at intervals.

Preferably, the lens includes a first lens, a second lens and a third lens stacked sequentially from the object side to the image side of the lens module, and the snap ring includes a structure for fixing the first lens to the The first snap ring of the lens barrel, the second snap ring that fixes the second lens to the lens barrel, and the third snap ring that fixes the third lens to the lens barrel, and the shading sheet includes a clamp A first light-shielding sheet arranged between the first lens and the second lens and a second light-shielding sheet sandwiched between the second lens and the third lens, the first light-shielding sheet is arranged along the A projected portion in the direction of the optical axis is located on the clamping wall of the second snap ring, and a projected portion of the second light shield along the direction of the optical axis is located on the clamping wall of the third snap ring.

Compared with the prior art, the lens module of the present utility model is provided with the snap ring, and then the lens is fastened and fixed by the snap ring and then fixedly assembled to the lens barrel. The assembly method is flexible and the efficiency is high; The setting of the snap ring has the function of blocking light, and the selection of materials for making the snap ring has diversity, which reduces the stray light formed by the edge of the lens and improves the optical performance of the lens module; in addition, through the design The length of the fixed wall of the snap ring can adjust the air gap between two adjacent lenses, further improving the optical performance of the lens module.

Description of drawings

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

Fig. 2 is an exploded view of part of the structure in Fig. 1;

Fig. 3 is a structural schematic diagram of another assembly method of the lens module in Fig. 1;

FIG. 4 is an exploded schematic diagram of a partial structure of the combination of the clasp and the lens in FIG. 3 .

detailed description

The utility model will be further described below in conjunction with drawings and embodiments.

Please refer to Figures 1-2 at the same time, wherein Figure 1 is a schematic structural view of the lens module of the present invention; Figure 2 is an exploded view of part of the structure in Figure 1 . The utility model provides a lens module 100, which includes a lens barrel 1, at least two retaining rings 2 accommodated in the lens barrel 1, at least two lenses 3 and two adjacent lenses 3 shading sheet between4.

The lens barrel 1 has a light hole 11, which can be a separate structure or an integral structure.

Each snap ring 2 is assembled and connected with one lens 2 and each lens 2 is fixed in the lens barrel 1 . Each snap ring 2 includes a ring-shaped fixed wall 21 fixed in the lens barrel 1, and the light directed toward the lens barrel 1 from the side of the fixed wall 21 close to the light hole 11 is The clamping wall 22 is bent and extended in the axial direction. In this embodiment, the clamping wall 22 is an annular structure.

The clasp 2 is configured to block light, and the materials used to make the clasp 2 are diverse, which reduces the stray light generated by the edge of the lens 3 , thereby improving the optical performance of the lens module 100 .

The lenses 3 are sequentially accommodated in the lens barrel 1 from the object side to the image side of the lens module 100 . Each lens 3 includes a main body portion 31 for imaging, a peripheral portion 32 surrounding the main body portion 31 serving as a non-imaging area, and a stepped portion disposed on the peripheral portion 32 for cooperating and accommodating the clamping wall 22 33.

The peripheral portion 32 is fixed against the fixed wall 21 and the clamping wall 22 is pressed against the stepped portion 33 . This assembly structure makes the structure balance of the clasp 2 and the lens 3 good after assembly, and improves the performance reliability of the lens module 100 .

In this embodiment, the peripheral portion 32 includes an object side 321, an image side 322 opposite to the object side 321, and a side wall 323 connecting the object side 321 and the image side 322. The step portion 33 The object side 321 of the peripheral portion 32 is concaved toward the image side 322 thereof.

Specifically, the step portion 33 includes a first wall 331 and a second wall 332 bent and extended from the first wall 331, the first wall 331 is connected to the object side 321, and the second wall 332 It is connected with the side wall 323 . Wherein, the first wall 331 is a vertical surface in the vertical direction, and the second wall 332 is a horizontal surface in the horizontal direction.

In this embodiment, the fixed wall 21 abuts against the side wall 323 of the peripheral portion 32 , of course, it is also feasible to arrange the two at intervals; the clamping wall 22 and the first wall 331 can abut against each other. The adjacent arrangement can also be arranged at intervals. In this embodiment, the clamping wall 22 and the first wall 331 are arranged at an interval.

It should be noted that the step portion 33 can also be formed by indenting from the image side 322 of the peripheral portion 32 to the object side 321 thereof. One end of the image side of the lens module 100 may be extended. It is all feasible as long as the clamping wall 22 can be press-fitted on the step portion 33 to form the above-mentioned cooperation.

The above only illustrates the assembly of one lens 3 and one snap ring 2 of the lens module 100 .

However, the lens module 100 of the present invention includes at least two snap rings 2 and two lenses 3 . For example, when both the snap ring 2 and the lens 3 are two, the details are as follows:

The lens module 100 includes two snap rings 2 stacked in sequence, two mirrors 3 respectively matched and connected to the two snap rings 2, and two mirrors 3 interposed between the two snap rings 2. The light-shielding sheet 4 is pressed on the clamping wall 22 of the snap ring 2 away from the light-through hole 11 . The two snap rings 2 are arranged in abutment along the optical axis of the lens 3 . Of course, the shading sheet 4 can be arranged in contact with the clamping wall 22 , or can be arranged at a distance from the clamping wall 22 , which is all feasible.

Of course, the above-mentioned structure is not limited to the assembly structure of two snap rings 2, two lenses 3 and one shading sheet 4, and is equally applicable to a greater number of snap rings 2, lenses 3 and shading sheets. The assembly of sheet 4, its principle is all the same.

Please refer to FIG. 3 , which is a schematic structural diagram of another assembly method of the lens module in FIG. 1 . That is, two adjacent snap rings 2 may also be arranged at intervals along the optical axis of the lens 3 , which is also feasible.

For example, taking the three snap rings 2 and the three lenses 3 as an example: along the direction from the object side to the image side of the lens module 100, the three lenses 3 are stacked in sequence, and the first lens is in turn 3a, a second lens 3b and a third lens 3c.

The three snap rings 2 are stacked one after the other, being the first snap ring 2a for fixing the first lens 3a to the lens barrel 1, and the first snap ring 2a for fixing the second lens 3b to the lens barrel 1, respectively. The second snap ring 2b and the third snap ring 2c for fixing the third lens 3c to the lens barrel 1 . The first snap ring 2a includes a first fixing wall 21a and a first clamping wall 22a; the second snap ring 2b includes a second fixing wall 21b and a second clamping wall 22b; the third snap ring 2c includes The third fixed wall 21c and the third clamping wall 22c.

Since one light-shielding sheet 4 is interposed between two adjacent lenses 3, when there are three said lenses 3 in this embodiment, two said light-shielding sheets 4 are included, which are respectively the first light-shielding sheet 4a And the second shading sheet 4b. The first shading sheet 4a is sandwiched between the first lens 3a and the second lens 3b, and the second shading sheet 4b is sandwiched between the second lens 3b and the third lens 3c between. The first light-shielding sheet 4a is pressed on the second clamping wall 22b of the second snap ring 2b, the second light-shielding sheet 4b is pressed on the third clamping wall 22c of the third snap ring 2c, and so on. The projected portion of the shading sheet 4 along the optical axis falls on the clamping wall 22 of the snap ring 2

In this embodiment, the two adjacent snap rings 2, that is, the first snap ring 2a and the second snap ring 2b below it, and the second snap ring 2b and the third snap ring 2c below it , designed as an interval setting. Of course, it can also be designed as an abutment setting, which is all feasible.

The spacing between two adjacent snap rings 2 is reflected in this embodiment as follows: the snap ring 2 also includes a recessed portion 221 on the side of the clamping wall 22 facing the light through hole 11, adjacent to Among the two snap rings 2 , the fixing wall 21 of one snap ring 2 close to the light through hole 11 is opposite to and spaced apart from the recessed portion 221 of the other snap ring 2 .

When referring specifically to this embodiment, please refer to FIG. 4 , which is an exploded schematic diagram of a partial structure of the combination of the clasp and the lens in FIG. 3 . A second recess 221b is provided on the side of the clamping wall 22b of the second snap ring 2b that is close to the light through hole 11, and a side of the clamping wall 22c of the third snap ring 2c that is close to the light through hole One side of 11 is provided with a third recessed portion 221c. The first fixing wall 21a of the first snap ring 2a is opposite to and spaced apart from the second recessed portion 221b of the second snap ring 2b; The third recessed portion 221c of the third snap ring 2c is facing and spaced apart. The space between two adjacent snap rings 2 is realized through the above structure, and of course, the structure is not limited thereto.

It should be noted that, because the first snap ring 2a is directly pressed by the lens barrel 1, there is no need to set a recessed portion on the clamping wall 22a of the first snap ring 2a, of course, it is also feasible to set a recessed portion .

In addition, the first lens 3a is assembled on the first snap ring 2a and then pressed on the second snap ring 2b at the same time; at the same time, the second lens 3b is assembled on the second snap ring 2b at the same time It is pressed on the third snap ring 3c, and so on.

By designing the length of the fixed wall 21 on the optical axis or/and designing the thickness of the clamping wall 22 on the optical axis, the air gap between two adjacent lenses 3 can be realized. Interval adjustment.

Compared with the prior art, the lens module of the present utility model is provided with the snap ring, and then the lens is fastened and fixed by the snap ring and then fixedly assembled to the lens barrel. The assembly method is flexible and the efficiency is high; The setting of the snap ring has the function of blocking light, and the selection of materials for making the snap ring has diversity, which reduces the stray light formed by the edge of the lens and improves the optical performance of the lens module; in addition, through the design The size design of the snap ring can realize the adjustment of the air gap between two adjacent lenses, further improving the optical performance of the lens module.

The above descriptions are only examples of the utility model, and are not intended to limit the patent scope of the utility model. Any equivalent structure or equivalent process transformation made by using the utility model specification and accompanying drawings may be directly or indirectly used in other applications. Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (6)

1. a kind of camera lens module, including the barrel with light hole, by thing side to image side direction the camera lens is contained in successively At least two panels eyeglass and the anti-dazzling screen that is located between eyeglass described in adjacent two panels in cylinder, each eyeglass include being used for into The main part of picture and the periphery around the main part, it is characterised in that the camera lens module also includes respectively by every institute At least two snap rings that eyeglass is fixed in the barrel are stated, each snap ring includes being fixed on consolidating in the barrel The lateral optical axis direction for determining wall and the close light hole by the fixation wall bends the clamping wall extended；The every mirror Piece also includes the stage portion for being used to coordinate the collecting clamping wall for being arranged at the periphery, and the periphery, which is abutted, to be fixed on The fixation wall and make it is described clamping wall pressure be located at the stage portion；Projection section of the anti-dazzling screen along optical axis direction is located at institute State on clamping wall.

2. camera lens module according to claim 1, it is characterised in that the periphery includes thing side, image side surface and company The side wall of the thing side and the image side surface is connect, the stage portion is recessed to image side surface from the thing side and formed.

3. camera lens module according to claim 2, it is characterised in that the stage portion includes the first wall and by described first Second wall of wall bending extension, first wall is connected with thing side, and second wall is connected with the side wall, described solid Determine wall and be connected to the side wall, the clamping wall is arranged at intervals with first wall.

4. camera lens module according to claim 3, it is characterised in that two adjacent snap rings are set in distance.

5. camera lens module according to claim 4, it is characterised in that the snap ring also includes the court located at the clamping wall To the depressed part of the light hole side, the fixation wall of a snap ring and the depression of another snap ring in two neighboring snap ring Portion just pair and is arranged at intervals.

6. camera lens module according to claim 1, it is characterised in that the eyeglass is included by the thing side of the camera lens module Fold the first eyeglass, the second eyeglass and the 3rd eyeglass set successively to image side, the snap ring includes first eyeglass being fixed on First snap ring of the barrel, the second snap ring that second eyeglass is fixed on to the barrel and by the 3rd eyeglass The 3rd snap ring of the barrel is fixed on, the anti-dazzling screen includes being located between first eyeglass and second eyeglass The first anti-dazzling screen and the second anti-dazzling screen for being located between second eyeglass and the 3rd eyeglass, first anti-dazzling screen It is located at along the projection section of optical axis direction on the clamping wall of second snap ring, projection of second anti-dazzling screen along optical axis direction Part is located on the clamping wall of the 3rd snap ring.