CN210323439U

CN210323439U - Spherical lens structure

Info

Publication number: CN210323439U
Application number: CN201921602736.0U
Authority: CN
Inventors: 陈骏
Original assignee: Nanjing Infrared Optical Equipment Co ltd
Current assignee: Nanjing Infrared Optical Equipment Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-04-14
Anticipated expiration: 2029-09-24

Abstract

The utility model relates to a spherical lens structure, including the spherical lens body, its innovation point lies in: the spherical lens comprises a spherical lens body and is characterized by further comprising a bottom coating layer, an antireflection film layer and a protective layer, wherein the bottom coating layer is arranged on the outer surface of the spherical lens body, the antireflection film layer is compounded on the outer surface of the bottom coating layer, and the protective layer is combined on the outer surface of the antireflection film layer. The utility model discloses not only each layer combines firmly, is difficult for moreover by the fish tail and the mould that wets.

Description

Spherical lens structure

Technical Field

The utility model particularly relates to a spherical lens structure.

Background

The existing infrared lens is made by molding a spherical lens, and the spherical lens structure in the prior art is characterized in that an antireflection film layer is additionally arranged on the periphery of a body to ensure the light transmittance, but the structure has the following defects: the outer surface of the anti-reflection film layer is easy to scratch, the bonding force between the anti-reflection film layer and the spherical lens body is poor, the anti-reflection film layer is easy to fall off, and if the anti-reflection film layer falls off, the light transmittance of the spherical lens is affected.

Disclosure of Invention

The utility model aims at: provides a spherical lens structure which not only has firm combination of all layers, but also is not easy to be scratched and damp and mildewed.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a spherical lens structure, includes the spherical lens body, its innovation point lies in: the spherical lens comprises a spherical lens body and is characterized by further comprising a bottom coating layer, an antireflection film layer and a protective layer, wherein the bottom coating layer is arranged on the outer surface of the spherical lens body, the antireflection film layer is compounded on the outer surface of the bottom coating layer, and the protective layer is combined on the outer surface of the antireflection film layer.

In the technical scheme, the bottom layer is a germanium layer, the antireflection film layer is a yttrium fluoride layer, and the protective layer is a zinc sulfide layer.

In the technical scheme, the diameter of the spherical lens body is 6.87 +/-0.015 nm, the thickness of the priming layer is 1000 nm-2500 nm, the thickness of the antireflection film layer is 2000 nm-3800 nm, and the thickness of the protective layer is 2500 nm-5000 nm.

The utility model discloses the positive effect who has is: adopt the utility model discloses a behind the spherical lens structure, because the utility model discloses still include prime layer, anti-reflection coating and protective layer, the surface of spherical lens body is equipped with the prime layer, anti-reflection coating complex is at the surface of prime layer, and the protective layer combines at the surface of anti-reflection coating, the effect of prime layer makes it more firm in order to improve the cohesion between spherical lens body and the anti-reflection coating, is difficult for taking place to drop, the effect of anti-reflection coating is for increasing the luminousness, the effect of protective layer is for the difficult cost of being divided in surface of protection anti-reflection coating to and damp and go mildy, play the guard action to it. The utility model discloses a combine firmly, be difficult for droing between each layer that the spherical lens periphery was equipped with, the surface is difficult for moreover being divided into the money and getting damp and mildewing.

Drawings

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

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but is not limited thereto.

As shown in fig. 1, a spherical lens structure includes a spherical lens body 1, and further includes a bottom layer 2, an anti-reflection film layer 3 and a protection layer 4, the bottom layer 2 is disposed on an outer surface of the spherical lens body 1, the anti-reflection film layer 3 is combined on an outer surface of the bottom layer 2, and the protection layer 4 is combined on an outer surface of the anti-reflection film layer 3.

Bottom 2 is the germanium layer, antireflection rete 3 is the yttrium fluoride layer, and protective layer 4 is the zinc sulfide layer. The priming layer has the effect of improving cohesion, and the luminousness can be improved to the antireflection coating, and the protective layer can prevent that antireflection rete is difficult by the fish tail, certainly, and is not limited to this, the silicon layer also can be chooseed for use to priming layer 2, and antireflection rete 3 is the thorium fluoride layer, and protective layer 4 is the carbon-layer, priming layer 2, antireflection rete 3 and protective layer 4 all are through the coating film of vacuum coating machine.

In order to make the utility model discloses the structure is more reasonable, ball lens body 1's diameter is 6.87 +/-0.015 mm, the thickness of bottoming layer 2 is 1000nm ~2500nm, and the thickness of anti-reflection rete is 2000nm ~3800nm, and the thickness of protective layer is 2500nm ~5000 nm.

The effect of primer layer makes it more firm in order to improve the cohesion between spherical lens body and the anti-reflection coating layer, is difficult for taking place to drop, the effect on anti-reflection coating layer is in order to increase the luminousness, the effect of protective layer is that the surface for protecting anti-reflection coating layer is difficult for being calculated to and the mould that wets, plays the guard action to it. The utility model discloses a combine firmly, be difficult for droing between each layer that the spherical lens periphery was equipped with, the surface is difficult for moreover being divided into the money and getting damp and mildewing.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A spherical lens structure, includes spherical lens body (1), its characterized in that: the spherical lens is characterized by further comprising a bottom coating layer (2), an anti-reflection film layer (3) and a protective layer (4), wherein the bottom coating layer (2) is arranged on the outer surface of the spherical lens body (1), the anti-reflection film layer (3) is compounded on the outer surface of the bottom coating layer (2), and the protective layer (4) is combined on the outer surface of the anti-reflection film layer (3).

2. The ball lens structure of claim 1, wherein: the bottom layer (2) is a germanium layer, the antireflection film layer (3) is a yttrium fluoride layer, and the protective layer (4) is a zinc sulfide layer.

3. The ball lens structure of claim 1, wherein: the diameter of the spherical lens body (1) is 6.87 +/-0.015 mm, the thickness of the bottom layer (2) is 1000 nm-2500 nm, the thickness of the antireflection film layer (3) is 2000 nm-3800 nm, and the thickness of the protective layer (4) is 2500 nm-5000 nm.