Fluorophosphate glass

A technology of fluorophosphate glass and phosphorus ions, applied in the field of high hardness fluorophosphate glass, can solve the problems of fragility of fluorophosphate glass, and achieve the effect of high hardness and good thermal expansion coefficient

Active Publication Date: 2022-07-29
PLATINUM OPTICS TECH SUZHOU INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application is to provide a fluorophosphate glass to solve the problems existing in the prior art that the fluorophosphate glass is easy to be broken when it is thinned

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The weight percentage of the ion composition of the fluorophosphate glass of this embodiment includes 21.26% phosphorus ion, 13.49% aluminum ion, 6.85% lithium ion, 2.14% sodium ion, 6.34% magnesium ion, 11.25% calcium ion , 13% strontium ions, 8.44% barium ions, 13.05% zinc ions, 2% zirconium ions and 1.18% copper ions. After the thermal properties and hardness tests, the hardness of the fluorophosphate glass of this embodiment is 422HK, and its thermal expansion coefficient is 13.7*10 -6 k -1 .

Embodiment 2

[0016] The weight percentage of the ion composition of the fluorophosphate glass of this embodiment includes 20.38% phosphorus ion, 13.08% aluminum ion, 11.26% lithium ion, 2.09% sodium ion, 6.7% magnesium ion, 12.96% calcium ion , 6.7% strontium ions, 8.96% barium ions, 13.36% zinc ions, 2.05% zirconium ions and 2.46% copper ions. After the thermal property and hardness test, the hardness of the fluorophosphate glass of this embodiment is 422HK, and its thermal expansion coefficient is 13.8*10 -6 k -1 .

Embodiment 3

[0018] The weight percentage of the ion composition of the fluorophosphate glass of this embodiment includes 20.36% phosphorus ion, 13.08% aluminum ion, 12.26% lithium ion, 2.09% sodium ion, 6.7% magnesium ion, 12.96% calcium ion , 6.13% strontium ions, 3.54% barium ions, 12.38% zinc ions, 0.5% zirconium ions and 10% copper ions. After the thermal properties and hardness tests, the hardness of the fluorophosphate glass of this embodiment is 429HK, and its thermal expansion coefficient is 13.8*10 -6 k -1 .

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Abstract

The application discloses a fluorophosphate glass, the composition of which includes phosphorus ions, aluminum ions, zirconium ions, copper ions, alkali metal ions, alkaline earth metal ions and divalent metal ions, wherein the weight percentage of phosphorus ions is 18%-25% %, the weight percent of aluminum ion is 11%~21%, the weight percent of zirconium ion is 0.5%~7%, the weight percent of copper ion is 0.1%~10%, the weight percent of alkali metal ion is 6%~18% , the weight percent of alkaline earth metal ions is 27~58%, the weight percent of divalent metal ions is 27~58%, the hardness of the fluorophosphate glass of the present application is greater than 400HK, and its thermal expansion coefficient is less than or equal to 14*10 ‑6 k ‑1 , so that the fluorophosphate glass has high hardness and good thermal expansion coefficient, so the fluorophosphate glass of the present application will not be easily broken during thinning, and its thickness can reach less than or equal to 0.1 mm.

Description

technical field [0001] The present application relates to the technical field of fluorophosphate glass, in particular to a high hardness fluorophosphate glass. Background technique [0002] In recent years, near-infrared cut filters have been widely used in image sensors (CCD & CMOS) and other photographic components, and optical materials have also been rapidly developed in the direction of high precision and miniaturization. The base material of this type of infrared cut filter can be divided into inorganic materials, organic materials and organic-inorganic composite materials. [0003] Inorganic materials are represented by copper-containing phosphate glass or fluorophosphate glass. The disadvantage of phosphate glass is poor weather resistance. Fluorophosphate glass is a new type of glass material that is widely used, with better weather resistance, low scattering, etc. Advantages, but the hardness of fluorophosphate glass is lower than 400HK, if the thinning process is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/21
CPCC03C3/21
Inventor 陈哲宇谢祥暐
Owner PLATINUM OPTICS TECH SUZHOU INC
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