Fluoride glass
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United States of America Patent
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-
Nov 9, 1982
Grant Date -
N/A
app pub date -
Sep 18, 1980
filing date -
Oct 4, 1979
priority date (Note) -
Expired
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Abstract
A fluoride glass basically containing ingredients of a P-Si-Al-alkaline-earth metals-alkali metals-F system within specific content ranges has extremely high anomalous partial dispersion and low dispersion properties and is stable without tendency to devitrification.
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