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Optical glass with high stability

A kind of optical glass, high stability technology, applied in the field of glass, can solve the problems of hard melting, difficult to obtain homogeneous glass without ribs, etc., achieve high transmittance, stable product quality, and promote the effect of degassing

Inactive Publication Date: 2015-08-05
刘泽华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case Si0 2 It is difficult to melt, so there is a so-called problem that it is difficult to obtain a homogeneous glass without stria

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Dissolve 0.85 g of cerous nitrate hexahydrate with a concentration of 0.3 mol / L in deionized water, add 0.6 g of polyvinylpyrrolidone and 0.8 g of urea, ultrasonicate for a period of time to form a mixed solution, and then transfer the mixed solution to Put it into a stainless steel autoclave lined with polytetrafluoroethylene, seal it, put it in an incubator to heat, control the temperature between 145 °C, react for 25 h, and cool it to room temperature in the air to collect samples. After centrifugation, washing and drying, white dendritic basic cerium carbonate is obtained.

[0017] A high-stability optical glass is characterized in that the components of the raw materials are grouped by weight as follows:

[0018] 18 parts of silicon dioxide, 12 parts of calcium oxide, 2 parts of phosphorus pentoxide, 1 part of aluminum oxide, 2 parts of metal oxide composed of antimony oxide, lead oxide and strontium oxide in a weight ratio of 1:2:2, fluorine 4 parts of lead chlor...

Embodiment 2

[0020] Dissolve 0.85 g of cerous nitrate hexahydrate with a concentration of 0.35 mol / L in deionized water, add 0.65 g of polyvinylpyrrolidone and 0.9 g of urea, ultrasonicate for a period of time to form a mixed solution, and then transfer the mixed solution Put it into a stainless steel autoclave lined with polytetrafluoroethylene, seal it, put it in a constant temperature box to heat, control the temperature between 150 °C, react for 20 h, and cool it to room temperature in the air to collect samples. After centrifugation, washing and drying, white dendritic basic cerium carbonate is obtained.

[0021] A high-stability optical glass is characterized in that the components of the raw materials are grouped by weight as follows:

[0022] 20 parts of silicon dioxide, 13 parts of calcium oxide, 3 parts of phosphorus pentoxide, 2 parts of aluminum oxide, 3 parts of metal oxide composed of antimony oxide, lead oxide and strontium oxide in a weight ratio of 1:2:2, fluorine 5 parts...

Embodiment 3

[0024] Take 0.85 g of cerous nitrate hexahydrate with a concentration of 0.4 mol / L and dissolve it in deionized water, add 0.7 g of polyvinylpyrrolidone and 1 g of urea, ultrasonicate for a period of time to form a mixed solution, and then transfer the mixed solution to In a stainless steel autoclave lined with polytetrafluoroethylene, seal it, put it in a constant temperature box to heat, control the temperature between 160 ° C, react for 18 hours, and cool to room temperature in the air, and collect samples. After centrifugation, washing and drying, white dendritic basic cerium carbonate is obtained.

[0025] A high-stability optical glass is characterized in that the components of the raw materials are grouped by weight as follows:

[0026] 22 parts of silicon dioxide, 15 parts of calcium oxide, 4 parts of phosphorus pentoxide, 3 parts of aluminum oxide, 4 parts of metal oxide composed of antimony oxide, lead oxide and strontium oxide in a weight ratio of 1:2:2, fluorine 6...

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PUM

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Abstract

The invention discloses an optical glass with high stability. The glass is characterized in that raw materials are composed of the following components by weight: 18 to 22 parts of silicon dioxide, 12 to 15 parts of calcium oxide, 2 to 4 parts of phosphorus pentoxide, 1 to 3 parts of aluminium oxide, 2 to 4 parts of metal oxides, 4 to 6 parts of lead fluoride, 2 to 3 parts of potassium oxide, 0.6 to 0.8 part of tellurium dioxide and 4 to 6 parts of basic cerium carbonate. According to the invention, production process of the basic cerium carbonate is simple and easy to realize, raw materials are cheap and easily available, product quality is stable, and repeatability is good, so the optical glass has good stability; the metal oxides can ease devitrification resistance of the glass, promote defoaming during melting of the glass and improve meltbility of the glass, so homogeneous optical glass is obtained; and prepared optical glass has high transmittance, high thermal stability parameter and high refractive index, wherein stimulated emission cross section of the optical glass can reach to 1.48pm2.

Description

technical field [0001] The invention belongs to the technical field of glass, in particular to a high-stability optical glass. Background technique [0002] Optical glass is a glass material used to manufacture lenses, prisms, mirrors, windows, etc. of optical instruments or mechanical systems. Including colorless optical glass (usually referred to as optical glass), colored optical glass, radiation-resistant optical glass, radiation-resistant glass and optical quartz glass, etc. Optical glass has high transparency, high uniformity in chemistry and physics (structure and performance), and has specific and precise optical constants. It can be divided into silicate, borate, phosphate, fluoride and chalcogenide series. With the continuous expansion of the application field of optical glass, its varieties are constantly expanding, and its composition includes almost all elements in the periodic table. [0003] Existing optical glasses having the above range of optical cons...

Claims

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Application Information

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IPC IPC(8): C03C6/06
Inventor 刘泽华
Owner 刘泽华
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