Glass, optical glass, glass raw material for press molding, and optical element

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United States of America Patent

PATENT NO 9828280
SERIAL NO

15148354

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Abstract

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A glass including at least one type of oxide selected from TiO2, Nb2O5, WO3, and Bi2O3 as a glass component therefor, having a total TiO2, Nb2O5, WO3, and Bi2O3 content of at least 20 mol %, and having a βOH value indicated in formula (1) that fulfills the relationship indicated in formula (2).

description='In-line Formulae' end='lead'βOH=−[ln(B/A)]/t  (1);description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'βOH≧0.4891×ln(1/HR)+2.48  (2).description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
HOYA CORPORATIONTOKYO JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Yasuhiro Tokyo, JP 101 714
Mikami, Shuhei Tokyo, JP 7 32

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