OPTICAL GLASS, GLASS PREFORM, OPTICAL ELEMENT AND OPTICAL INSTRUMENT
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United States of America Patent
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Issued Date -
Oct 17, 2024
app pub date -
Aug 17, 2022
filing date -
Aug 17, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
An optical glass, wherein components of the optical glass are represented by weight percentage, including: 12-30% of SiO2; 6-20% of Nb2O5; 15-35% of TiO2; 15-35% of BaO; 1-10% of ZrO2. Through rational component proportion, the optical glass obtains the optical glass with a refractive index of 1.89-1.96 and an Abbe number of 20-28 in silicate (borate) system; the cost for raw material and production of this optical glass is lower, and the environmental load is smaller.
First Claim
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