CN209961988U

CN209961988U - Lens assembly

Info

Publication number: CN209961988U
Application number: CN201920625863.6U
Authority: CN
Inventors: 韦传冬
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-01-17
Anticipated expiration: 2029-05-05

Abstract

The utility model provides a lens assembly, its including lens cone and the holding that has the accommodation space a plurality of lenses inside the lens cone, the lens is including the optical part that is used for the formation of image and the peripheral part that encircles optical part, and peripheral part has the texturing layer that forms after carrying out the texturing with laser. The utility model discloses in, carry out the texturing process with laser to the outward appearance and the inside of the peripheral part of lens after the lens equipment, can promote the formation of image quality, and can not influence the equipment precision of lens.

Description

Lens assembly

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of optical imaging, especially, relate to a lens subassembly.

[ background of the invention ]

With the development of imaging technology and the widespread use of electronic products with a camera function, optical lens assemblies are widely used in various fields of life. In the related art, in order to avoid the multiple reflections in the lens assembly of light incident into the lens assembly from different angles and the formation of stray light interference, the lens assembly is generally assembled into a lens after the stray light absorption treatment is performed on the peripheral position of the lens, but since the plurality of lenses are assembled by matching the matching surfaces with each other, the assembling precision between the lenses is affected by assembling the surfaces of the lenses after the stray light absorption treatment.

[ Utility model ] content

An object of the utility model is to provide a lens subassembly aims at solving and assembles the problem that can influence the equipment precision between the lens to the surface of lens after absorbing the parasitic light and handling among the correlation technique again.

The technical scheme of the utility model as follows: a lens assembly comprises a lens barrel with an accommodating space and a light through hole, and a plurality of lenses stacked in the accommodating space, wherein each lens comprises an optical portion and a peripheral portion, the optical portion is used for imaging and corresponds to the light through hole, the peripheral portion surrounds the optical portion, and a texturing layer is formed after texturing is carried out on the peripheral portion through laser.

Further, the peripheral portion comprises a first surface and a second surface which are oppositely arranged along the axial direction of the lens, the texturing layer is arranged on one side of the peripheral portion close to the first surface, and the texturing layer and the first surface are arranged at intervals.

Further, the peripheral portion comprises a first surface and a second surface which are oppositely arranged along the axial direction of the lens, the texturing layer is arranged on one side of the peripheral portion close to the second surface, and the texturing layer and the second surface are arranged at intervals.

Further, the first surface is closer to the object side than the second surface.

Further, the texturing layer has a plurality of layers.

Further, each texturing layer is in a continuous ring shape.

Further, each texturing layer comprises a plurality of texturing blocks which are arranged at intervals.

Further, the peripheral portion includes a first surface and a second surface which are oppositely disposed along an axial direction of the lens, the first surface includes a first mating surface which mates with the adjacent lens and a first bearing surface which abuts against the adjacent lens, and the texturing layer is disposed on the first surface.

Further, the projection of the texturing layer on the first surface along the direction parallel to the optical axis is at least partially overlapped with the first fitting surface and the first bearing surface.

Further, the first fitting surface is closer to the optical axis than the first bearing surface.

The beneficial effects of the utility model reside in that: the utility model discloses carry out the texturing processing with laser to the peripheral part of lens, form the diffuse reflection phenomenon and absorb the parasitic light to light when light gets into and shines the lens regional scope of texturing processing by logical unthreaded hole, can effectively reduce the reflection phenomenon of lens peripheral part to the parasitic light, promote the formation of image quality to laser texturing is handled and is gone on after the equipment is accomplished to the lens, can not influence the equipment precision of lens. Moreover, a series of customization requirements such as font marking can be realized by utilizing internal laser texturing.

[ description of the drawings ]

Fig. 1 is a schematic overall structure diagram of a lens assembly according to a first embodiment of the present invention;

fig. 2 is a schematic view of an overall structure of a lens according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

fig. 4 is a schematic view of an overall structure of the lens assembly according to the second embodiment of the present invention;

fig. 5 is a schematic view of an overall structure of a lens according to a second embodiment of the present invention;

FIG. 6 is an enlarged schematic view of portion B of FIG. 4;

fig. 7 is a schematic view of an overall structure of a lens assembly according to a third embodiment of the present invention;

fig. 8 is a schematic view of an overall structure of a lens according to a third embodiment of the present invention;

FIG. 9 is an enlarged schematic view of portion C of FIG. 7;

fig. 10 is a schematic overall structure diagram of a lens assembly according to a fourth embodiment of the present invention;

fig. 11 is a schematic view of an overall structure of a lens according to a fourth embodiment of the present invention;

fig. 12 is an enlarged schematic view of a portion D in fig. 10.

[ detailed description ] embodiments

The present invention will be further described with reference to the accompanying drawings and embodiments.

As shown in fig. 1, a lens assembly 100 according to a first embodiment of the present invention includes a lens barrel 2 having an accommodating space 6 and an opening 5, and a plurality of lenses 1 stacked in the accommodating space.

In the above embodiment, as shown in fig. 2 and 3, the lens 1 includes the optical portion 11 for image formation corresponding to the light passing hole and the peripheral portion 12 surrounding the optical portion 11. The peripheral portion 12 has a texturing layer formed by texturing with a laser. Specifically, the peripheral portion 12 includes a first surface 121 and a second surface 122 which are oppositely disposed along the axial direction of the lens 1, the texturing layer includes a first texturing layer 30, the first texturing layer 30 is disposed on one side of the peripheral portion 12 close to the first surface 121, and the first texturing layer 30 is disposed at an interval from the first surface 121. The laser texturing processing is carried out on the inner part of the peripheral part 12, when light enters from the light through hole 5 and irradiates to the area range of the lens 1 subjected to texturing processing, the light forms diffuse reflection phenomenon and absorbs stray light, the reflection phenomenon of the peripheral part of the lens 1 to the stray light can be effectively reduced, the imaging quality is improved, the laser texturing processing is carried out after the lens 1 is assembled, and the assembling precision of the lens 1 cannot be influenced. Because first texturing layer 30 is close to first surface 121 and sets up with first surface 121 interval, has both guaranteed the absorption effect of first texturing layer 30 to the parasitic light, makes first texturing layer 30 can not exert an influence to between the first surface 121 of mutually supporting between the different lenses 1 again, just can not influence the equipment precision of lens 1 yet. In addition, the laser track can be used for scanning out the desired characters in the lens 1, so that a series of customization requirements such as font marking and the like can be realized.

In the above embodiment, as shown in fig. 2 and fig. 3, the first surface 121 includes a first mating surface 1212 that mates with the adjacent lens 1 and a first bearing surface 1211 that abuts against the adjacent lens 1, the first texturing layer 30 is disposed on a side close to the first surface 121 and spaced apart from the first surface 121, and a projection of the first texturing layer 30 on the first surface 121 along a direction parallel to the optical axis at least partially coincides with the first mating surface 1212 and the first bearing surface 1211. In addition, in the present embodiment, the first mating surface 1212 is closer to the optical axis than the first bearing surface 1211. In other embodiments, the positions of the first mating surface 1212 and the first bearing surface 1211 may be reversed, or a first mating surface 1212 may be further disposed on a side of the bearing surface 1211 away from the optical axis.

In order to enlarge the roughened area in the lens 1 and ensure that the roughened layer absorbs light sufficiently, the roughened layer has a continuous ring-like structure. In other embodiments, the texturing layer may also include a plurality of texturing blocks arranged at intervals, and in order to make the absorption of stray light more sufficient, the projection of one of the corresponding texturing blocks between two adjacent texturing layers covers the gap between two adjacent texturing blocks of the other layer.

In addition, in the above embodiment, the first surface 121 further includes non-bearing surfaces 1213 spaced from the adjacent lenses 1, and a layer of stray light absorption layer 4 is disposed between the non-bearing surfaces 1213 of the two adjacent lenses 1. The stray light adsorption layer 4 can also absorb stray light in the lens assembly, and the imaging quality is further improved. Preferably, the stray light adsorption layer is a black film layer, the black film layer can be directly coated on the non-bearing surfaces 1213, and since a gap exists between the non-bearing surfaces 1213 of the two lenses 1 and is not in contact with each other, the thickness of the black film layer is smaller than the gap between the non-bearing surfaces 1213 of the two lenses 1, the assembling precision of the lenses 1 is not affected.

As shown in fig. 4 to fig. 6, a lens assembly 200 according to a second embodiment of the present invention is provided, in this embodiment, the peripheral portion 12 includes a first surface 121 and a second surface 122 oppositely disposed along the axial direction of the lens 1, and a second roughened layer 31 is disposed on the first surface 121 and the second surface 122. Specifically, the first surface 121 includes a first mating surface 1212 mating with the adjacent lens 1 and a first bearing surface 1211 abutting against the adjacent lens 1, the second surface 122 includes a second mating surface 1222 mating with the adjacent lens 1 and a second bearing surface 1221 abutting against the adjacent lens 1, the first mating surface 1212 and the first bearing surface 1211 are at least partially covered with the second texturing layer 31, and the second mating surface 1222 and the second bearing surface 1221 are at least partially covered with the second texturing layer 31. In this embodiment, the second texturing layer 31 on the first surface 121 and the second surface 122 can also effectively reduce the reflection of the peripheral portion 12 to stray light, thereby improving the image quality. Except for the above structure, the other structures of the second embodiment are the same as those of the first embodiment, and are not described herein again.

As shown in fig. 7 to fig. 9, a lens assembly 300 according to a third embodiment of the present invention is provided. The peripheral portion 12 of the lens 1 of the lens assembly 300 includes a first surface 121 and a second surface 122 which are oppositely arranged along the axial direction of the lens 1, the texturing layer further includes a third texturing layer 32, the third texturing layer 32 is arranged on one side of the peripheral portion 12 close to the second surface 122, and the third texturing layer 32 and the second surface 122 are arranged at intervals. Specifically, the second surface 122 includes a second mating surface 1222 mating with the adjacent lens 1 and a second bearing surface 1221 abutting against the adjacent lens 1, the third textured layer 32 is disposed at a side close to the second surface 122 and spaced apart from the second surface 122, and a projection of the third textured layer 32 on the second surface 122 along a direction parallel to the optical axis at least partially coincides with the second mating surface 1222 and the second bearing surface 1221. Optionally, the first surface 121 is closer to the object side than the second surface 122. In this embodiment, the roughened area inside the lens assembly 300 is further enlarged, so that stray light can be further absorbed, and the imaging quality is improved. Except for the above structure, other structures of the third embodiment are the same as those of the first embodiment, and are not described herein again.

As shown in fig. 10 to 12, a lens assembly 400 according to a fourth embodiment of the present invention is provided. The lens assembly 400 has three texturing layers, namely a first texturing layer 30, a third texturing layer 32 and a fourth texturing layer 33, in the peripheral portion 12 of the lens 1. The first texturing layer 30 is adjacent to the first surface 121, the third texturing layer 32 is adjacent to the second surface 122, and the fourth texturing layer 33 is arranged in the middle of the peripheral portion 12 in the axial direction of the lens 1, at the edge of the peripheral portion 12. The fourth texturing layer 33 is located at the periphery of the lens 1, and it is also difficult to avoid the interference of stray light due to the incidence of partial light, so that the stray light can be further absorbed by disposing the fourth texturing layer 33 at this position, and the imaging quality can be improved. In other embodiments, the textured layer inside the peripheral portion 12 may be 4, 5, 6, or more layers. Except for the above structure, other structures of the fourth embodiment are the same as those of the first embodiment, and are not described herein again.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A lens assembly comprises a lens barrel with an accommodating space and a light through hole, and a plurality of lenses stacked in the accommodating space, wherein each lens comprises an optical portion and a peripheral portion, the optical portion is used for imaging and corresponds to the light through hole, the peripheral portion surrounds the optical portion, and the lens assembly is characterized in that the peripheral portion is provided with a texturing layer formed after texturing is carried out on the peripheral portion by laser.

2. The lens assembly of claim 1, wherein the peripheral portion comprises a first surface and a second surface that are oppositely disposed along an axial direction of the lens, wherein the textured layer is disposed on a side of the peripheral portion adjacent to the first surface, and wherein the textured layer is spaced apart from the first surface.

3. The lens assembly of claim 1 or 2, wherein the peripheral portion comprises a first surface and a second surface that are oppositely arranged along an axial direction of the lens, the roughened layer is arranged on a side of the peripheral portion close to the second surface, and the roughened layer is arranged at a distance from the second surface.

4. The lens assembly of claim 2, wherein the first surface is closer to the object side than the second surface.

5. The lens assembly of claim 2, wherein the textured layer has a plurality of layers.

6. The lens assembly of claim 5, wherein each of the textured layers is continuous annular.

7. The lens assembly of claim 5, wherein each of the textured layers comprises a plurality of spaced apart textured blocks.

8. The lens assembly of claim 1, wherein the peripheral portion includes a first surface and a second surface disposed opposite to each other along an axial direction of the lens, the first surface includes a first mating surface that mates with an adjacent lens and a first bearing surface that abuts an adjacent lens, and the textured layer is disposed on the first surface.

9. The lens assembly of claim 8, wherein a projection of the textured layer onto the first surface in a direction parallel to the optical axis at least partially coincides with the first mating surface and the first bearing surface.

10. The lens assembly of claim 9, wherein the first mating surface is closer to the optical axis than the first bearing surface.