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High weather resistance antireflection glass

A technology of anti-reflection glass and high weather resistance, which is applied in the field of optical glass, can solve the problem of glass desodination, etc., achieve excellent anti-reflection ability, increase aging resistance, and widely use the environment

Inactive Publication Date: 2016-02-10
CHANGZHOU ALMADEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the anti-reflection coating in the prior art cannot solve the problem of glass desodination, and to provide a high weather resistance anti-reflection glass

Method used

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  • High weather resistance antireflection glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 As shown, the anti-reflection glass with high weather resistance includes an anti-reflection layer 3, an anti-de-sodium layer 2 and a glass substrate 1 from top to bottom. The thickness of the anti-reflection layer 3 is controlled to be 120 nm, the porosity is 30%, and the refractive index is 1.25-1.30. The production process is as follows: firstly, the original glass substrate 1 is processed (edging / cleaning / appearance inspection), then the anti-de-sodium layer 2 is plated, and the anti-reflection layer 3 is plated, then tempered, and finally the finished product is inspected ( Appearance inspection / transmittance inspection). Coating film layer thickness test (testing instrument, J.A.Woollam): anti-de-sodium layer 2 thickness is 1.2nm, porosity 1.3%, refractive index 1.98, anti-reflection layer 3 thickness is 117.2nm, porosity 31.2%, refractive index The ratio is 1.29, and the SEM image of the film layer section is as follows figure 2 shown.

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Embodiment 2

[0027] In embodiment 1, the anti-de-sodium layer 2 material is replaced by Al 2 o 3 , and control the thickness of the anti-sodium removal layer 2 to be less than 5nm and the porosity to be less than 5%, and control the thickness of the anti-reflection layer 3 to be 80nm and the porosity to be 55%. Other conditions are with embodiment 1.

[0028] Coating film thickness test (testing instrument, J.A.Woollam): anti-de-sodium layer 2 has a thickness of 4.8nm, a porosity of 4.9%, and an anti-reflection layer 3 has a thickness of 81.3nm, a porosity of 54.8%, and a refractive index of 1.23.

Embodiment 3

[0030] In embodiment 1, the anti-de-sodium layer 2 material is replaced by ZrO and Ta 2 o 3 The composite film layer (the molar ratio of the two is 1:1), the thickness of the anti-de-sodium layer 2 is controlled to be 0.1nm, and the porosity is less than 5%; the material of the anti-reflection layer 3 is replaced by Al 2 o 3 The film layer is controlled to have a thickness of 150nm, a porosity of 5%, and a refractive index of 1.3. Other conditions are with embodiment 1.

[0031] Coating film thickness test (testing instrument, J.A.Woollam): anti-de-sodium layer 2 has a thickness of 0.3nm, a porosity of 0.2%, and an anti-reflection layer 3 has a thickness of 148.3nm, a porosity of 6.2%, and a refractive index of 1.25.

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Abstract

The invention belongs to the technical field of optical glass and provides high weather resistance antireflection glass which overcomes the defect that an existing antireflection coating film cannot solve the problem of glass sodium removal. The high weather resistance antireflection glass is sequentially provided with an antireflection layer, a sodium removal prevention layer and a glass substrate from top to bottom. The sodium removal prevention layer is a compact inert substance film. The high weather resistance antireflection glass has the advantages that the sodium removal prevention layer is plated between the surface of the glass and a traditional antireflection layer, and the sodium removal prevention layer and the antireflection layer are plated one by one; accordingly, the phenomenon that sodium ions are separated out due to the fact that chemical components corresponding to sodium ions inside glass are subjected to a chemical reaction is avoided, the phenomenon that sodium ions are separated out due to physical migration is avoided, the problem that sodium ions of coated glass are separated out is solved, and anti-aging, acid-base resistance, washing resistance and other characteristics of coated glass are added; the coated glass has the better antireflection capacity and is larger than 2.50%; the light transmittances obtained before and after various aging, acid-base and other tests of the coated glass change within 0.50%; the service life is prolonged, and the obtained coated glass has the wider using environment.

Description

technical field [0001] The invention belongs to the technical field of optical glass, in particular to an anti-reflection glass. Background technique [0002] The coating process of the anti-reflection glass of existing industrialized production: a layer of liquid film is coated on the glass surface, and after high-temperature sintering, a thin film (such as silicon dioxide) with a low refractive index (less than 1.4) nanometer level (about 120nm) thickness is formed on the glass surface ); the light transmittance gain of the coated glass is 1.5%-2.5%. [0003] The existing anti-reflection glass anti-reflection coating technology cannot well solve the problem of glass desalination, which results in poor aging resistance such as damp heat / ultraviolet and acid and alkali resistance of the coated glass. Contents of the invention [0004] The purpose of the present invention is to overcome the defect that the anti-reflection coating cannot solve the problem of glass desodinat...

Claims

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Application Information

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IPC IPC(8): C03C17/34
Inventor 林金汉林金锡王国祥郑友伟林俊良
Owner CHANGZHOU ALMADEN
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