CN102445738A

CN102445738A - Lens module

Info

Publication number: CN102445738A
Application number: CN2010102995942A
Authority: CN
Inventors: 赖建男
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2010-10-08
Filing date: 2010-10-08
Publication date: 2012-05-09

Abstract

The invention relates to a lens module, comprising a lens cone, at least one optical lens, an optical filter and a glue body. The lens cone comprises a cone body and a front cover, wherein the front cover is covered on the cone body. At least one optical lens and the optical filter are fixedly arranged in the cone body sequentially, the cone body comprises a bottom of the cone body, which is far away from the front cover, the optical filter comprises an object side bottom surface, an image side bottom surface which is opposite to the object side bottom surface and a side wall which is connected with the object side bottom surface and the image side bottom surface. The bottom part of the cone body is provided with at least one opening. The optical filter is contained in the cone body of the lens cone and at least one glue spreading area is formed between the side wall of the optical filter and the opening, the glue body is spread in at least one glue spreading area to fix the optical filter on the bottom part of the cone body of the lens cone. In the lens module, glue can be prevented from being leaked from the gap between the optical filter and the inner wall of the lens cone on the optical filter to pollute the optical filter.

Description

The camera lens module

Technical field

The present invention relates to a kind of camera lens module.

Background technology

The camera lens module that is applied on camera or the optical instrument generally includes lens barrel, lens combination, anti-dazzling screen and optical filter.Wherein, lens, anti-dazzling screen and optical filter all are fixed in the lens barrel.In the assembling process of camera lens module, generally be to fix optical filter and lens barrel through gluing process.In a glue process; At first provide one treat a glue the camera lens module; Again the dispensing needle head of point glue equipment is resisted against the junction of optical filter and lens barrel inwall, makes the dispensing needle head rotation then and penetrate glue, be coated with glue thereby be implemented on optical filter and the lens barrel inwall.

But, because glue more liquid, when the dispensing needle head rotation with glue application during in the junction of optical filter and lens barrel inwall; Glue flows easily and thereby the glue phenomenon of overflowing occurs; Be that glue flows from this junction and is spilled on the optical filter, thereby polluted optical filter, reduced the assembling yield.

Summary of the invention

In view of this, be necessary to provide a kind of camera lens module that improves the assembling yield.

A kind of camera lens module, it comprises a lens barrel, at least one lens, an optical filter and colloid.Said lens barrel comprises a cylindrical shell and a protecgulum.Said protecgulum lid is located on the cylindrical shell.Said at least one lens and optical filter are fixedly arranged in the cylindrical shell successively.Said cylindrical shell comprises a cylindrical shell bottom away from said protecgulum.This optical filter comprises a thing side bottom surface, a picture side bottom surface relative with said thing side bottom surface, and one is connected said thing side bottom surface and looks like the sidewall of side bottom surface.Said cylindrical shell bottom offers at least one opening.Said optical filter is housed in the cylindrical shell of said lens barrel and between the sidewall of said optical filter and the said opening and is formed with at least one coating area.Said colloid is coated in said at least one coating area, so that said optical filter is installed on the cylindrical shell bottom of said lens barrel.

Compared to prior art; The cylindrical shell bottom of the lens barrel of lens group provided by the invention offers at least one opening; After said optical filter is housed in the cylindrical shell of said lens barrel; Be formed with coating area between the sidewall of said optical filter and the said opening, said colloid is coated in the said coating area, so that said optical filter is installed on the cylindrical shell bottom of said lens barrel.Therefore, because the barrier effect of said sidewall, said colloid can not flow on the said optical filter, thereby can not pollute optical filter, has improved the assembling yield.

Description of drawings

Fig. 1 assembles synoptic diagram for the solid of the camera lens module that embodiment of the present invention provides;

The perspective exploded view of the camera lens module that Fig. 2 provides for embodiment of the present invention;

Fig. 3 is that camera lens module among Fig. 1 is along the cut-away view of III-III line.

The main element symbol description

Camera lens module 100

Lens barrel 10

First lens 20

First shading element 30

Second lens 40

Second shading element 50

The 3rd lens 60

Optical filter 70

Colloid 80

Cylindrical shell 11

Protecgulum 12

Light well 120

Madial wall 112

Lateral wall 114

Cylindrical shell bottom 115

External thread 110

Stepped boss 122

Snap-latch surface 123

Opening 116

Optic 22,42

Non-optical

division

24,44

Thing side 246,441

Picture side 243,442,641

Stepped ring body 240

Fixing face 241

Flange 244

Central

transparent area

31,51

Shading

region

32,52

Breach 444

Thing side bottom surface 71

Picture side bottom surface 72

Sidewall 73

Embodiment

To combine accompanying drawing that embodiment of the present invention is done further to specify below.

Please consult Fig. 1 to Fig. 3 in the lump, a kind of camera lens module 100 that embodiment of the present invention provides.This camera lens module 100 comprises a lens barrel 10, one first lens 20, one first shading element 30, one second lens 40, one second shading element 50, one the 3rd lens 60, an optical filter 70 and colloid 80.Said first lens 20, first shading element 30, second lens 40, second shading element 50, the 3rd lens 60 and optical filter 70 are contained in the said lens barrel 10 along the optical axis direction of said camera lens module 100 successively.

Said lens barrel 10 is the semi-enclosed cylindrical body of an end, and this lens barrel 10 comprises a cylindrical shell 11 and a protecgulum 12.Said protecgulum 12 lids are located at an end of said cylindrical shell 11.In this embodiment, said cylindrical shell 11 and said protecgulum 12 are one-body molded.The center position of said protecgulum 12 offers a light well 120, and extraneous light enters in the lens barrel 10 through this light well 120.Said cylindrical shell 11 comprises a madial wall 112, a lateral wall 114 and away from the cylindrical shell bottom 115 (being the picture side of cylindrical shell 11) of said protecgulum 12.The madial wall 112 of said cylindrical shell 11 is a black, and it can absorb the light of the madial wall that projects cylindrical shell 11 112, to reduce the influence to image quality of the parasitic light that forms to madial wall 112 backs of cylindrical shell 11 because of irradiate light.Said lateral wall 114 is provided with external thread 110.Be appreciated that thereby said lens barrel 10 integral body also can adopt light-proof material to process and reach the purpose that shields light.In this embodiment, protecgulum 12 inboards of said lens barrel 10 are formed with a stepped boss 122, and this stepped boss 122 is an annular, and can be one-body molded with protecgulum 12.Said stepped boss 122 has a snap-latch surface 123.Said cylindrical shell bottom 115 offers two openings 116.In this embodiment, said two openings 116 are the symmetrical of arc and said relatively camera lens module 100.

It is understandable that, one or more two openings 116 also can be set according to demand, be not limited to this embodiment.

Said first lens 20 comprise the non-optical division 24 that an optic 22 reaches around optic 22.Said optic 22 has been the part of optical effect, and this optic 22 can specifically need be set to recessed or protruding shape, thereby light is dispersed or converged.This non-optical division 24 surrounds and connects optic 22, mainly act as placement, support of optical portion 22.The non-optical division 24 of said first lens 20 has one near thing side of said light well 120 246 and the picture side 243 relative with thing side 246.Said thing side 246 has a stepped ring body 240; Said stepped ring body 240 has the fixing face 241 that is complementary with the snap-latch surface 123 of said lens barrel 10; Said fixing face 241 closely contacts with said snap-latch surface 123, is used for first lens 20 are positioned lens barrel 10.The non-optical division 24 of said first lens 20 said be extended with a flange 244 as side 243 along vertical as side 243 directions.

In this embodiment, said first shading element 30 is no reflection events type SOMA (SOMA-NR) anti-dazzling screen, and it is shaped as the hollow circular ring shape, and this first anti-dazzling screen 30 comprises central transparent area 31 and around the shading region 32 of central transparent area 31.Said first anti-dazzling screen 30 is carried on the picture side 243 of non-optical division 24 of said first lens 20, and the central transparent area 31 of said first anti-dazzling screen 30 aligns with the optic 22 of said first lens 20 mutually.The shading region 32 of said first shading element 30 is used to absorb the spurious rays of optic 22 peripheries of passing said first lens 20.

Said second lens 40 comprise the non-optical division 44 that an optic 42 reaches around optic 42.This non-optical division 44 surrounds and connects optic 42, mainly act as placement, support of optical portion 42.Said non-optical division 44 comprises the relative picture side 442 in a thing side 441 and a said thing side 441.The non-optical division 24 of corresponding said first lens 20 in the thing side 441 of said non-optical division 44 offer breach 444 as 244 positions of the flange on the side 243.In this embodiment, flange 244 correspondences of said first lens 20 closely are placed in the breach 444 of said second lens 40 so that second lens 40 accurately be positioned first lens 20 non-optical division 24 the picture side 242 on.So, can reduce the crooked probability of entirety of lens package.

In this embodiment, said second shading element 50 also is no reflection events type SOMA (SOMA-NR) anti-dazzling screen, and it is shaped as the hollow circular ring shape.This second anti-dazzling screen 50 comprises central transparent area 51 and centers on the shading region 52 of central transparent area 51.Said second anti-dazzling screen 50 is carried on the picture side 442 of non-optical division 44 of said second lens 40, and the central transparent area 51 of said second anti-dazzling screen 50 aligns with the optic 42 of said second lens 40 mutually.The shading region 52 of said second shading element 50 is used to absorb the spurious rays of optic 42 peripheries of passing said second lens 40, to improve the image quality of camera lens module 100.

Said the 3rd lens 60 comprise the non-optical division 64 that an optic 62 reaches around optic 62.This non-optical division 64 surrounds and connects optic 62, mainly act as placement, support of optical portion 62.The non-optical division 64 of said the 3rd lens 60 is carried on the shading region 52 of said second shading element 50.

The camera lens module 100 of present embodiment comprises three lens, it is understandable that, can also also can one or two lens only be set according to demand according to this principle the 4th, the 5th lens etc. that superpose, and is not limited to this embodiment.Simultaneously, but the part side of scioptics engages this structure mutually with another eyeglass between each lens, reaches and avoids assembling crooked purpose.

In this embodiment; Said optical filter 70 is a cutoff filter; It is contained in the said cylindrical shell 11, and this optical filter 70 comprises a thing side bottom surface 71, a picture side bottom surface 72 relative with said thing side bottom surface 71, and one is connected said thing side bottom surface 71 and looks like the sidewall 73 of side bottom surface 72.The thing side bottom surface 71 of said optical filter 70 be carried on said the 3rd lens 60 non-optical division 64 the picture side 641 on.The cylindrical shell 11 that said first lens 20, second lens 40, second shading element 50, the 3rd lens 60, optical filter 70 are slightly larger than said lens barrel 10 along the thickness sum on the optical axis direction is along the thickness on the optical axis direction; Said optical filter 70 be carried on said the 3rd lens 60 non-optical division 64 the picture side 641 on after; The sidewall 73 of this optical filter 70 exceeds the opening 116 of said cylindrical shell bottom 115, and promptly the sidewall 73 of optical filter 70 is exposed to outside the said opening 116.Be formed with a coating area 90 respectively between the sidewall 73 of said optical filter 70 and two said openings 116.Said colloid 80 is coated in the said coating area 90 so that said optical filter 70 is installed on the said cylindrical shell bottom 115.Because the barrier effect of said sidewall 73, said colloid 80 can not flow to the thing side bottom surface 71 or the picture side bottom surface 72 of said optical filter 70, thereby can not pollute optical filter 70.

Though the present invention discloses as above with preferred embodiments,, it is not in order to qualification the present invention, and in addition, those skilled in the art can also do other variation etc. in spirit of the present invention.Certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.

Claims

1. camera lens module; It comprises a lens barrel, at least one lens, an optical filter and colloid; Said lens barrel comprises a cylindrical shell and a protecgulum, and said protecgulum lid is located on the cylindrical shell, and said at least one lens and optical filter are fixedly arranged in the cylindrical shell successively; Said cylindrical shell comprises a cylindrical shell bottom away from said protecgulum; This optical filter comprise a thing side bottom surface, a picture side bottom surface relative with said thing side bottom surface, and one is connected said thing side bottom surface and picture side bottom surface sidewall, it is characterized in that: said cylindrical shell bottom offers at least one opening, said optical filter is housed between sidewall and the said opening of the interior and said optical filter of the cylindrical shell of said lens barrel and is formed with at least one coating area; Said colloid is coated in said at least one coating area, so that said optical filter is installed on the cylindrical shell bottom of said lens barrel.

2. camera lens module as claimed in claim 1; It is characterized in that: said at least one lens comprise one first lens, and said first lens comprise that an optic reaches the non-optical division around optic, and said non-optical division has one near the thing side of said light well and the picture side relative with the thing side; The protecgulum inboard of said lens barrel is formed with a stepped boss; Said stepped boss has a snap-latch surface, and the thing side of said first lens has a stepped ring body, and said stepped ring body has the fixing face that is complementary with the snap-latch surface of said stepped boss; Said fixing face closely contacts with said snap-latch surface, is used for first lens position in lens barrel.

3. camera lens module as claimed in claim 2; It is characterized in that: the center position of said protecgulum offers a light well; Said camera lens module further comprises one first anti-dazzling screen; Said first anti-dazzling screen comprises central transparent area and around the shading region of central transparent area, and said first anti-dazzling screen is carried on the picture side of non-optical division of said first lens, and the central transparent area of said first anti-dazzling screen aligns with the optic of said first lens mutually.

4. camera lens module as claimed in claim 3; It is characterized in that: the non-optical division of said first lens said be extended with a flange as the side along vertical as side surface direction; Said at least one lens further comprise one second lens; Said second lens comprise that an optic reaches the non-optical division around optic; The lugs position as on the side of the non-optical division of corresponding said first lens in the thing side of the non-optical division of said second lens offers breach, and the flange correspondence of said first lens closely is placed in the breach of said second lens.

5. camera lens module as claimed in claim 1 is characterized in that: the center position of said protecgulum offers a light well.

6. camera lens module as claimed in claim 4; It is characterized in that: said camera lens module further comprises one second anti-dazzling screen; Said second anti-dazzling screen comprises central transparent area and centers on the shading region of central transparent area; Said second anti-dazzling screen is carried on the picture end face of non-optical division of said second lens, and the central transparent area of said second anti-dazzling screen aligns with the optic of said second lens mutually.

7. camera lens module as claimed in claim 6; It is characterized in that: said camera lens module further comprises one the 3rd lens; Said the 3rd lens comprise that an optic reaches the non-optical division around optic, and the non-optical division of said the 3rd lens is carried on the shading region of said second shading element.

8. camera lens module as claimed in claim 7; It is characterized in that: said optical filter is carried on the picture side of non-optical division of said the 3rd lens, said first lens, second lens, second shading element, the 3rd lens, and optical filter along the thickness sum on the optical axis direction greater than the cylindrical shell of said lens barrel along the thickness on the optical axis direction.

9. camera lens module as claimed in claim 1 is characterized in that: said optical filter is a cutoff filter.

10. camera lens module as claimed in claim 1 is characterized in that: said first, second anti-dazzling screen is a no reflection events type anti-dazzling screen.