CN211928279U

CN211928279U - Lens group of optical lens

Info

Publication number: CN211928279U
Application number: CN202020387526.0U
Authority: CN
Inventors: 田佳鹏
Original assignee: Nanyang Haiyuan Photoelectric Instrument Co ltd
Current assignee: Nanyang Haiyuan Photoelectric Instrument Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-13
Anticipated expiration: 2030-03-24

Abstract

The utility model relates to a lens group of an optical lens, which adopts the technical proposal that the optical lens comprises a first lens, the lower end of the first lens is adhered to the second lens through a pressure sensitive adhesive layer, a mounting groove is arranged in the first lens, the mounting groove is internally provided with a second antireflection film, the second lens is internally provided with a placing groove, the placing groove is internally provided with a first antireflection film, the optical axis centers of the first lens and the second lens are favorably improved to be coaxial through the annular groove, the lens performance and the imaging quality are prevented from being influenced when the lens is mounted, the first lens and the second lens are tightly bonded through the pressure-sensitive adhesive film, meanwhile, the stress of the connecting part is eliminated through the pressure-sensitive adhesive film, the influence of stray light generated at the connecting position on the imaging quality is avoided, the transmission force is increased through the second antireflection film and the first antireflection film in the first mirror body and the second mirror body.

Description

Lens group of optical lens

Technical Field

The utility model belongs to the technical field of optical imaging, a lens group of optical lens piece is related to.

Background

At present, with the rapid development of portable devices, image devices mounted on the portable devices are also rapidly updated, and the demands on the resolution, stability and the like of the portable devices are also increasing, so that a snap-in lens having certain advantages in resolution and reliability becomes a direction for future development. However, because the precision requirements of the snap-fit lens on the snap-fit surface and the adjacent surface are high, the snap-fit lens cannot be processed in the conventional manners of sand blasting, ink coating and the like, so that the image quality is relatively poor due to the influence of stray light, and in addition, the spacer in the middle of the snap-fit gap of the adjacent lens is deviated due to the transitional connection structure at the end position of the annular snap-fit surface after the snap-fit structure is formed, so that part of optical parameters are abnormal.

SUMMERY OF THE UTILITY MODEL

In view of the problem that exists among the prior art, the utility model discloses a lens group of optical lens piece, the technical scheme of adoption is, including first lens, its characterized in that: the low ends of the first lenses are adhered to the second lenses through pressure-sensitive adhesive layers, mounting grooves are formed in the first lenses, second antireflection films are mounted in the mounting grooves, placing grooves are formed in the second lenses, and first antireflection films are mounted in the placing grooves.

As a preferred embodiment of the present invention, the central portion of the first lens is convex.

As an optimized scheme of the utility model, the bottom of first lens and second lens is annular groove structure.

As a preferred embodiment of the present invention, the middle portion of the second lens is convex.

As a preferred embodiment of the present invention, the first lens and the second lens are plastic or glass.

The utility model has the advantages that: the utility model discloses an annular groove forms one to first lens and second lens and dodges the position, the optical axis center that is favorable to improving first lens and second lens is the axiality, influence camera lens performance and formation of image quality when avoiding installing, make first lens and second lens tightly adhere through pressure-sensitive adhesive film, eliminate the stress at connection position through pressure-sensitive adhesive film simultaneously, avoid hookup location to produce stray light and exert an influence to formation of image quality, second antireflection coating and first antireflection coating through in first lens and the second lens increase the ventilation power.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural view of the position a of the present invention;

in the figure: 1-first lens, 2-second lens, 3-first antireflection film, 4-second antireflection film and 5-pressure sensitive adhesive layer.

Detailed Description

Example 1

As shown in fig. 1, fig. 2 and fig. 3, the technical solution of the present invention is that, the present invention includes a first lens 1, which is characterized in that: the low ends of the first lenses 1 are adhered to the second lenses 2 through pressure-sensitive adhesive layers 5, mounting grooves are formed in the first lenses 1, second antireflection films 4 are mounted in the mounting grooves, placing grooves are formed in the second lenses 2, and first antireflection films 3 are mounted in the placing grooves.

The central part of the first lens 1 is convex.

The bottoms of the first lens 1 and the second lens 2 are in an annular groove structure.

The middle part of the second lens 2 is convex.

The first lens 1 and the second lens 2 are both plastic or glass.

The utility model discloses a theory of operation: the utility model discloses an annular groove forms an avoidance position to first lens 1 and second lens 2, the optical axis center that is favorable to improving first lens 1 and second lens 2 is the axiality, influence camera lens performance and formation of image quality when avoiding installing, make first lens 1 and second lens 2 tightly adhere through pressure-sensitive adhesive film 5, eliminate the stress at connection position through pressure-sensitive adhesive film 5 simultaneously, avoid hookup location to produce stray light and produce the influence to formation of image quality, through second antireflection coating 4 and the 3 increase of first antireflection coating in first lens 1 and the second lens 2 pass through the power.

The structural components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.

Claims

1. A set of optical lenses comprising a first lens (1), characterized in that: the low ends of the first lenses (1) are adhered to the second lenses (2) through pressure-sensitive adhesive layers (5), mounting grooves are formed in the first lenses (1), second antireflection films (4) are mounted in the mounting grooves, placing grooves are formed in the second lenses (2), and first antireflection films (3) are mounted in the placing grooves.

2. The set of optical lenses of claim 1, wherein: the central part of the first lens (1) is convex.

3. The set of optical lenses of claim 1, wherein: the bottoms of the first lens (1) and the second lens (2) are of annular groove structures.

4. The set of optical lenses of claim 1, wherein: the middle part of the second lens (2) is convex.

5. The set of optical lenses of claim 1, wherein: the first lens (1) and the second lens (2) are both plastic or glass.