CN206523669U - Camera lens module - Google Patents

Abstract

The utility model provides a lens module, which comprises a lens barrel, at least one lens and a shading sheet accommodated in the lens barrel. The lens includes a main body serving as an imaging area, a supporting portion surrounding the main body, a groove opened in the supporting portion, and magnetic colloid filled in the groove; the shading sheet is Made of magnetic material, the magnetic colloid holds the shading sheet to abut against the supporting part. Compared with related technologies, the light lens module of the utility model has better optical performance.

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 .

The lens module of the related art includes a lens barrel, a lens arranged in the lens barrel, a light-shielding sheet or a light-shielding plate clamped between two adjacent lenses, and a pressure plate between the bottom lens and the lens barrel. The pressing ring is fixed to the lens barrel by dispensing glue, so as to realize the fixing of the lens.

However, in the related art, the shading sheet is stacked with the lens or the spacer to shield the lens from stray light and improve its optical performance. That is, the shading sheet needs to be supported by a lens or a spacer.

This structure limits the layout design of the lens, thereby limiting 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 good optical performance.

In order to solve the above technical problems, the utility model provides a lens module, including a lens barrel and at least one lens and a light-shielding sheet accommodated in the lens barrel, the lens includes a main body for serving as an imaging area and a surrounding The supporting part of the main body part, the lens also includes a groove opened in the supporting part and magnetic colloid filled in the groove, the shading sheet is made of a magnetic material, the The magnetic colloid holds the light-shielding sheet to abut against the supporting portion.

Preferably, the groove is formed by indenting the image side of the supporting part toward the object side, and the light-shielding sheet abuts against the image side of the supporting part.

Preferably, the magnetic material is metal material.

Preferably, the magnetic material is iron or cobalt or nickel.

Preferably, the lens module includes a first lens, a metal shading element and a second lens stacked sequentially from the object side to the image side; the metal shading element includes two shading sheets stacked on top of each other and arranged in a staggered manner, so The shading sheet is adsorbed on the first lens through magnetic colloid.

Preferably, the light-shielding sheet is provided with a light hole, including a body part interposed between the supporting part of the first lens and the supporting part of the second lens, and a direction from the body part toward the first lens. A protruding part that bends and extends; the first lens is provided with the groove at a position corresponding to the protruding part, and the protruding part is opposed to the first lens through the magnetic colloid in the groove.

Preferably, the protruding portion includes a plurality of notches spaced apart from each other, and the notches communicate with the light through hole.

Compared with the prior art, the lens module of the present invention has a groove on the supporting part of the lens, and fills and fixes the magnetic colloid layer in the groove, and the shading sheet is designed as Made of magnetically attractive metal material, the shading sheet is held by the magnetic colloid layer and made to abut against the supporting part, and the shading sheet can be fixed without support, so that the lens module Different distances can be set between the lenses of the group to adjust their optical performance, which breaks the limitation of the layout of the lenses and improves the optical performance of the lens module.

Description of drawings

Fig. 1 is a schematic structural view of the lens module provided by the first embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a lens module provided by another embodiment of the present invention;

FIG. 3 is a schematic diagram of the three-dimensional structure of the light-shielding sheet in FIG. 2 .

detailed description

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

As shown in FIG. 1 , a lens module 100 includes a lens barrel 1 and at least one lens 2 and a shading sheet 3 accommodated in the lens barrel 1 .

The lens 2 includes a main body 21 used as an imaging area, a supporting part 22 extending outward from the main body, a groove 23 opened on the object side or image side of the supporting part 22 and filling The magnetic colloid 24 fixed in the groove 23 .

Specifically, the groove 23 is formed by indenting from the image side of the supporting portion 22 toward the object side.

The light-shielding sheet 3 is made of magnetic material, and the magnetic colloid 24 holds the light-shielding sheet 3 to abut against the image side of the supporting portion 22 , thereby forming a fixation for the light-shielding sheet 3 . However, the realization of this structure does not require other components to support the shading sheet 3 . It can be understood that the groove can also be provided on the object side of the supporting portion of the lens, and formed by indenting from the object side to the image side, and the magnetic colloid is injected into the groove to hold the light-shielding sheet on the object side of the lens.

Specifically, the magnetic material is a metal material, more preferably, the magnetic material is iron or cobalt or nickel.

In this embodiment, the lens module 100 is provided with six lenses 2 sequentially along the direction from the object side to the image side, and a light-shielding sheet 3 is arranged between two adjacent lenses 2, wherein the above-mentioned The structure is applied to the fifth lens 2 as an example for illustration: the supporting portion 22 of the fifth lens 2 includes the groove 23 that is recessed from the image side to the object side. The magnetic colloid 24 is injected into the groove 23, the shading sheet 3 is located on the image side of the fifth lens 2, and is held by the magnetic colloid 24 to abut against the image side of the fifth lens 2 , the lens 2 is fixed in the lens barrel 1 by means of glue. At this time, the sixth lens can be spaced apart from the fifth lens to form an air gap, and its optical performance can be adjusted according to requirements, and the light-shielding sheet 3 can also achieve the function of fixing light without support.

The second embodiment of the lens module of the present invention is shown in Fig. 2. Specifically, in the lens module 100', the lens 2' at least includes the first A lens 20 , a shading element 40 and a second lens 30 . The first lens 20 includes a first body part 201 for imaging and a first bearing part 202 surrounding the first body part 201 . The second lens 30 includes a second body part 301 for imaging and a first bearing part 302 surrounding the second body part 301 .

The shading element 40 is made of metal material and includes two shading sheets 41 stacked on top of each other. A light hole 410 is opened in the light-shielding sheet 41 for the light of the imaging area of the lens module to pass through. The light-shielding sheet 41 includes a body portion 411 clamped between the first supporting portion 202 and the second supporting portion 302 , and a raised portion 412 protruding from the body portion 411 toward the direction of the first lens 20 . A plurality of notches 4121 arranged at intervals are defined on the protruding portion 412 , and the notches 4121 communicate with the light through hole 410 .

A groove 23' is formed at a position corresponding to the protruding portion 412 in the supporting portion 202 of the first lens 20. As shown in FIG. Specifically, the groove 23' is formed by the image side of the supporting portion 202 of the first lens 20 being depressed toward the object side.

The magnetic colloid 24' is injected into the groove 23' to hold the raised portion 412 of the light-shielding sheet 41 so as to be against the image side of the first lens 20. Due to the deformation ability of the metal, the gap enables the metal shading sheet to be bent to a certain extent, so that the metal shading sheet is attached to the lens, and the two shading sheets are overlapped with each other to cover all the parts other than the aspherical surface of the lens. .

It should be noted that, in the present invention, the structure of the lens 2 can be applied to any one or more lenses of the lens module 100 individually or simultaneously, and is not limited to the above example.

Compared with the prior art, the lens module of the present utility model has a groove on the supporting part of the lens, and injects the magnetic colloid into the groove, and the light-shielding sheet is designed to be magnetically attractive. Made of metal material, the shading sheet is held by the magnetic colloid and made to abut against the supporting part, the shading sheet can be fixed without support, so that the lens of the lens module Different distances can be set between them to adjust the optical performance, which breaks the limitation of the lens layout and improves the optical performance of the lens module.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (7)

1. a kind of camera lens module, including barrel and at least one eyeglass and anti-dazzling screen being contained in the barrel, described Eyeglass includes the main part and the bearing and leaning portion around the main part for being used to serve as imaging area, it is characterised in that the eyeglass is also Including the magnetic colloid for being opened in the groove of the bearing and leaning portion He being filled in the groove, the anti-dazzling screen is magnetic material It is made, anti-dazzling screen described in the magnetic colloid sticking makes it be connected to the bearing and leaning portion.

2. camera lens module according to claim 1, it is characterised in that the groove is from the image side of the bearing and leaning portion to thing side Direction is recessed to be formed, and the anti-dazzling screen is connected to the image side surface of the bearing and leaning portion.

3. camera lens module according to claim 1, it is characterised in that the magnetic material is metal material.

4. camera lens module according to claim 3, it is characterised in that the magnetic material is iron or cobalt or nickel.

5. camera lens module according to claim 1, it is characterised in that the camera lens module include by thing side to image side successively Folded the first eyeglass, metal shading element and the second eyeglass set；The metal shading element is mutually folded including two panels and sets and interlock The anti-dazzling screen of setting, the anti-dazzling screen is adsorbed on first eyeglass by magnetic colloid.

6. camera lens module according to claim 5, it is characterised in that the anti-dazzling screen is provided with light hole, including is folded in Body between the bearing and leaning portion of first eyeglass and the bearing and leaning portion of the second eyeglass and from the body towards the first eyeglass The lug boss of direction bending extension；The groove, the projection are opened up in first eyeglass on position corresponding with lug boss Portion is adsorbed on the first eyeglass by the magnetic colloid in groove.

7. camera lens module according to claim 6, it is characterised in that the lug boss includes multiple spaced settings Breach, the breach is connected with the light hole.