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Anti-radiation optical glass

An optical glass, radiation-resistant technology, applied in the field of optical glass, can solve problems such as non-compliance

Inactive Publication Date: 2004-09-29
CDGM OPTICAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is an existing formula, and its weight percentage is composed of: SiO 2 : 41.36; Pb 3 o 4 : 51.33; KNO 3 : 2.75; K 2 CO 3 : 4.26; CeO 2 : 0.30, the refractive index of the radiation-resistant glass produced according to this formula is 1.6450, which does not meet the requirements

Method used

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Embodiment Construction

[0006] SiO 2 And PbO is the former of glass. SiO 2 In glass, it has the properties of low refractive index, low expansion coefficient and high high temperature viscosity. Therefore in this invention, when SiO 2 When the weight percent content of the glass is more than 65%, the high-temperature viscosity of the glass is particularly large, which is not conducive to the production of the glass, so the addition amount is controlled at 40% to 48%. PbO has high refractive index and low melting point in glass. It mainly plays a role in helping melting and reducing the high-temperature viscosity of glass. Through experiments, it is more appropriate to control the weight percentage of PbO at 36% to 45%.

[0007] Na 2 O is added as a flux. Its introduction is beneficial to reduce the high temperature viscosity of the glass, but Na 2 O can also increase the thermal expansion coefficient of glass and reduce the thermal stability, chemical stability and mechanical strength of glass....

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Abstract

The present invention provides a kind of anti-radiation optical glass. It includes SiO2 40-48 wt%, PbO 36-45 wt%, and CeO2 0.1-1 wt%. It has high anti-radiation performance and refractivity of 1.61409-1.61309.

Description

technical field [0001] The invention relates to an optical glass, in particular to a radiation-resistant optical glass. Background technique [0002] After the high-energy particles and high-energy radiation act on the general optical glass, a series of color centers produced by the combination of oxygen ion vacancies and free electrons in the glass will be produced in the ultraviolet, visible and infrared regions, resulting in a significant decrease in the transmittance of the glass. In order to ensure In order for different optical glasses to work normally in an environment with radiation, it is necessary to invent a radiation-resistant glass with a specific refractive index. There is an existing formula, and its weight percentage is composed of: SiO 2 : 41.36; Pb 3 o 4 : 51.33; KNO 3 : 2.75; K 2 CO 3 : 4.26; CeO 2 : 0.30, the refractive index of the radiation-resistant glass produced according to this formula is 1.6450, which does not meet the requirements. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/102C03C4/00C03C4/08
CPCC03C3/102C03C4/08
Inventor 赵月冯宏
Owner CDGM OPTICAL GLASS