Production of fluorophosphate optical glass, and production of optical element

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United States of America Patent

PATENT NO 8769991
APP PUB NO 20120111061A1
SERIAL NO

13278875

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Abstract

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In a method for producing a fluorophosphate optical glass comprising melting a glass raw material to give a molten glass, and refining, homogenizing and then quickly quenching the molten glass to produce the fluorophosphate optical glass, even if the glass is flown from a refining tank that is set to a high temperature to an operation tank that is set to a low temperature, bubbles are not generated in the glass.

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Patent Owner(s)

  • HOYA CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kenishi, Mikio Tokyo, JP 1 0

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