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Photochromic glass and production method thereof

A technology of photochromic glass, weight percentage, applied in glass molding, glass pressing, glass manufacturing equipment, etc., can solve the problems of poor protection performance, low refractive index, slow color change and fading, etc., to achieve good protection performance, refraction High rate, fast fading effect

Inactive Publication Date: 2006-07-05
HAIMEN CITY KANGLING GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the problem of raw material composition, its color fading is slow, the refractive index is low, and the protective performance is also poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Put the following standard raw material (weight percentage) mixture into all-platinum multi-crucible for continuous production:

[0064] SiO 2 50-60

[0065] B 2 o 3 18-25

[0066] al 2 o 3 5-10

[0067] K 2 O5-10

[0068] Na 2 O2-5

[0069] Li 2 O1-5

[0070] ZrO 2 2-5

[0071] TiO 2 1-3

[0072] Ag0.08-0.3

[0073] CuO0.002-0.015

[0074] Cl0.2-0.6

[0075] Br0.05-0.3.

[0076] The above raw material mixture is melted and clarified at a temperature of 1420-1480°C, then stirred at a temperature of about 1150°C, mechanically pressed into a blank lens, and finally reheated at a temperature of about 600°C for about 40 minutes, namely Blanks with photochromic effects that can be used to make lenses can be obtained.

Embodiment 2

[0078] Put the following standard raw material (weight percentage) mixture into all-platinum multi-crucible for continuous production:

[0079] SiO 2 50-60

[0080] B 2 o 3 18-25

[0081] al 2 o 3 5-10

[0082] K 2 O5-10

[0083] Li 2 O1-5

[0084] BaO1-3

[0085] TiO 2 0-1

[0086] Ag0.08-0.3

[0087] CuO0.002-0.015

[0088] Cl0.2-0.6

[0089] Br0.05-0.3.

[0090] The above raw material mixture is melted and clarified at a temperature of 1420-1480°C, then stirred at a temperature of about 1150°C, mechanically pressed into a blank lens, and finally reheated at a temperature of about 600°C for about 40 minutes, namely Blanks with photochromic effects that can be used to make lenses can be obtained.

Embodiment 3

[0092] Put the following standard raw material (weight percentage) mixture into all-platinum multi-crucible for continuous production:

[0093] SiO 2 50-60

[0094] B 2 o 3 18-25

[0095] al 2 o 3 5-10

[0096] K 2 O5-10

[0097] Na 2 O2-5

[0098] Li 2 O1-5

[0099] BaO1-3

[0100] Ag0.08-0.3

[0101] CuO0.002-0.015

[0102] Cl0.2-0.6

[0103] Br0.05-0.3.

[0104] The above raw material mixture is melted and clarified at a temperature of 1420-1480°C, then stirred at a temperature of about 1150°C, mechanically pressed into a blank lens, and finally reheated at a temperature of about 600°C for about 40 minutes, namely Blanks with photochromic effects that can be used to make lenses can be obtained.

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Abstract

The photochromatic glass consists of oxide SiO2, B2O3 and Al2O3 and photochromatic material Ag, CuO, Cl and Br, as well as 3-6 kinds of characterized alkali oxide. Its preparation process includes melting with the standard material mixture inside platinum crucibles at 1420-1480 deg.c, clarifying, stirring at 1150 deg.c, mechanically pressing into lens blank, and finally reheating at 600 deg.c for about 40 min. The photochromatic glass has fast photochromatic rate, ultraviolet resistance and high refractivity.

Description

Technical field: [0001] The invention relates to a glass lens in optical technology, which is a photochromic glass lens blank and its production technology. Background technique: [0002] Photochromic glass lenses are very popular lens materials. The existing photochromic glass lens blanks are produced by the production method of porcelain platinum continuous melting, usually containing oxides SiO 2 , B 2 o 3 、Al 2 o 3 And photochromic agent Ag, CuO, Cl, Br components. Due to the problem of raw material composition, it has slow fading, low refractive index, and poor protective performance. Invention content: [0003] The object of the present invention is to provide a photochromic glass with fast color change and fading, high refractive index and good protection performance and a production method thereof. [0004] Technical solution of the present invention is: [0005] A photochromic glass comprising oxide SiO 2 , B 2 o 3 、Al 2 o 3 And photochromic agent Ag, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C4/06C03C3/11C03C3/091C03C3/093C03B11/08G02B3/00
CPCC03C4/06C03C3/11
Inventor 顾锦东沈俞成陈永新张连萍陈锦法
Owner HAIMEN CITY KANGLING GLASS
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