CN215297793U

CN215297793U - Novel lens structure

Info

Publication number: CN215297793U
Application number: CN202121908828.9U
Authority: CN
Inventors: 韩雪; 何东升
Original assignee: Dongguan Jiuzhou Optical Co ltd
Current assignee: Dongguan Jiuzhou Optical Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2021-12-24
Anticipated expiration: 2031-08-13

Abstract

The utility model belongs to the technical field of optical element, concretely relates to novel lens structure, including first lens and second lens, the one end of first lens forms first curved surface to outside arch, and the one end of second lens forms the second curved surface to sunken inside, is provided with the glue film between first curved surface and the second curved surface, and first bank closes and is provided with between the portion with the second bank and runs gluey groove, is provided with two relief grooves between first lens and the second lens. The utility model discloses novel structure, design benefit, first lens are glued fashionably with the second lens, and the surplus glue film has reduced effectively because of the inhomogeneous risk that has the fracture after high low temperature test of glue film distribution to the running glue groove gathering of both sides after receiving the extrusion, and the air that produces when first lens and second lens veneer is extruded in the relief groove simultaneously to get rid of through the relief groove, reduced the resistance of first lens and second lens veneer in-process.

Description

Novel lens structure

Technical Field

The utility model belongs to the technical field of optical element, concretely relates to novel lens structure.

Background

In order to correct the aberration and chromatic aberration of the optical lens, the optical system usually adopts a cemented lens to solve the problem, and the cemented lens is formed by bonding two lenses made of different materials together, so that the aberration and chromatic aberration of the optical system are corrected. However, the existing cemented lens glue slice is easy to crack after high and low temperature tests due to uneven glue layer distribution, and needs to apply pressure to the lenses in the process of lens gluing, and air may be generated between the two lenses in the process of pressure application, so that a reverse pressure is generated, and the joint effect of the two lenses is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses problem to prior art provides a novel lens structure, is provided with runs and glues position and relief groove for the veneer effect of first lens and second lens is excellent.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a novel lens structure, includes first lens and second lens, the one end of first lens forms first curved surface to the outside arch, the one end of second lens forms the second curved surface to inside sunken, first curved surface with be provided with the glue film between the second curved surface, the both sides of first curved surface are all protruding to be equipped with first bank and close the portion, the both sides of second curved surface are all concave to be equipped with the second bank and close the portion, first bank close the portion with the second bank is provided with between closing the portion and runs gluey groove, first lens with be provided with two decompression grooves between the second lens, the decompression groove is located respectively first lens and the both ends of second lens, the one end in decompression groove link up with the external world, and the other end is located first bank portion and second bank portion.

The other end of the first lens protrudes to the outside to form a third curved surface, and the other end of the second lens is sunken to the inside to form a fourth curved surface.

The first lens and the second lens are made of plastic.

The water absorption rate of the first lens is 0.01, the shrinkage rate of the first lens is 0.60, the water absorption rate of the second lens is 0.07, and the shrinkage rate of the second lens is 0.60.

Wherein, the outer diameter thickness of first lens is 1.211mm, the central thickness of first lens is 2.760mm, the outer diameter thickness of second lens is 3.011mm, the central thickness of second lens is 1.000mm, the curvature of first lens is 4.1185, the curvature of second lens is 4.1145.

The utility model has the advantages that: the utility model discloses novel structure, design benefit, first lens are glued fashionably with the second lens, and the surplus glue film has reduced effectively because of the inhomogeneous risk that has the fracture after high low temperature test of glue film distribution to the running glue groove gathering of both sides after receiving the extrusion, and the air that produces when first lens and second lens veneer is extruded in the relief groove simultaneously to get rid of through the relief groove, reduced the resistance of first lens and second lens veneer in-process.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

The reference numerals are respectively: 1. the lens comprises a first lens, a second lens, a first curved surface, a second curved surface, a glue layer, a first fitting portion, a second fitting portion, a glue running groove, a second fitting portion, a glue layer, a first curved surface, a second curved surface, a glue layer, a first fitting portion, a second fitting portion, a glue layer, a glue running groove, a pressure reducing groove, a third curved surface, a fourth curved surface, a third curved surface, a glue layer, a glue running groove, a pressure reducing groove, a third curved surface, a fourth curved surface, a third curved surface and a fourth curved surface.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.

A novel lens structure, as shown in FIGS. 1-3, comprises a first lens 1 and a second lens 2, one end of the first lens 1 protrudes outwards to form a first curved surface 3, one end of the second lens 2 is sunken inwards to form a second curved surface 4, a glue layer 5 is arranged between the first curved surface 3 and the second curved surface 4, a first engaging part 6 is convexly arranged at both sides of the first curved surface 3, two sides of the second curved surface 4 are both concavely provided with second fitting parts 7, a glue running groove 8 is arranged between the first fitting part 6 and the second fitting part 7, two decompression grooves 9 are arranged between the first lens 1 and the second lens 2, the decompression grooves 9 are respectively positioned at two ends of the first lens 1 and the second lens 2, one end of the pressure reduction groove 9 is communicated with the outside, and the other end is positioned at the first engaging portion 6 and the second engaging portion 7. Specifically, the utility model discloses novel structure, design benefit, first lens 1 is when gluing with second lens 2, unnecessary glue film 5 is receiving the extrusion to the gluey groove 8 gathering of running of both sides, has reduced effectively because of 5 uneven distributions of glue film have the risk of fracture after high low temperature test, the air that produces when first lens 1 and second lens 2 veneer is extruded in the decompression groove 9 simultaneously, and get rid of through decompression groove 9, reduced the resistance of first lens 1 and the 2 veneer in-process of second lens.

In the plastic lens assembly of this embodiment, the other end of the first lens 1 protrudes outward to form a third curved surface 10, and the other end of the second lens 2 is recessed inward to form a fourth curved surface 11. Specifically, the above-mentioned setting makes the utility model discloses an imaging effect is better.

In the plastic lens assembly of the present embodiment, the material of the first lens 1 and the material of the second lens 2 are both plastic. Specifically, the plastic lens has good light transmission and excellent impact resistance.

In the plastic lens assembly, the water absorption of the first lens 1 is 0.01, the shrinkage rate of the first lens 1 is 0.60, the water absorption of the second lens 2 is 0.07, and the shrinkage rate of the second lens 2 is 0.60. Specifically, the material used for the first lens 1 is K22R, and the material used for the second lens 2 is EP 5000.

The novel plastic lens group of this example, the outer diameter thickness of first lens 1 is 1.211mm, the center thickness of first lens 1 is 2.760mm, the outer diameter thickness of second lens 2 is 3.011mm, the center thickness of second lens 2 is 1.000mm, the curvature of first lens 1 is 4.1185, the curvature of second lens 2 is 4.1145. Specifically, in the molding process of the first lens 1, because the whole first lens 1 is in the shape with thin ends and thick center, the first lens 1 is easy to have the problems of large central stress, easy shrinkage and the like in the molding process; similarly, the second lens 2 has a thick outer edge and a thin center, which is prone to generate large edge stress and shrink outer diameter during the molding process, and the curvature of the first lens 1 is modified to 4.1185 and 4.1145 to improve the deformation of the lenses.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. A novel lens structure is characterized in that: including first lens and second lens, the one end of first lens forms first curved surface to the outside arch, the one end of second lens forms the second curved surface to sunken inside, first curved surface with be provided with the glue film between the second curved surface, the both sides of first curved surface are all protruding to be equipped with first threshold portion, the both sides of second curved surface are all concave to be equipped with the second threshold portion, first threshold portion with it runs gluey groove to be provided with between the second threshold portion, first lens with be provided with two relief grooves between the second lens, the relief groove is located respectively first lens and the both ends of second lens, the one end in relief groove link up with the external world, and the other end is located first threshold portion and second threshold portion.

2. The novel lens structure of claim 1, wherein: the other end of the first lens protrudes to the outside to form a third curved surface, and the other end of the second lens is sunken to the inside to form a fourth curved surface.

3. The novel lens structure of claim 1, wherein: the first lens and the second lens are made of plastic.

4. A novel lens structure according to claim 3, wherein: the water absorption rate of the first lens is 0.01, the shrinkage rate of the first lens is 0.60, the water absorption rate of the second lens is 0.07, and the shrinkage rate of the second lens is 0.60.

5. The novel lens structure of claim 4, wherein: the outer diameter thickness of the first lens is 1.211mm, the center thickness of the first lens is 2.760mm, the outer diameter thickness of the second lens is 3.011mm, the center thickness of the second lens is 1.000mm, the curvature of the first lens is 4.1185, and the curvature of the second lens is 4.1145.