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Optical glass for precision molding having high refractive index
Optical glass for precision molding having high refractive index
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机译:高折射率精密成型用光学玻璃
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摘要
An optical glass for precision molding having a high refractive index (nd) and a low yield temperature (At). The optical glass comprises, as glass components in wt %, 64 to 83% of Bi2O3; 4 to 17% of B2O3; 0 to 12% of GeO2 (wherein the total of B2O3 and GeO2 is 10 to 20%); 0 to 7% of La2O3; 0 to 7% of Gd2O3 (wherein the total of La2O3 and Gd2O3 is 1 to 13%); 0 to 4% of ZrO2; 0 to 5% of Ta2O5; 0 to 15% of ZnO; 0 to 2% of Sb2O3; and 0 to 1% of In2O3. The optical glass has optical constants, that is, a refractive index (nd) of 2.05 to 2.25 and an Abbe number (νd) of 15 to 22, and a yield temperature (At) of 510° C. or less.
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机译:一种具有高折射率(nd)和低屈服温度(At)的精密成型光学玻璃。光学玻璃包含以重量%计的Bi 2 Sub> O 3 Sub>作为玻璃成分。 B 2 Sub> O 3 Sub>的4%至17%; GeO 2 Sub>的0至12%(其中B 2 Sub> O 3 Sub>和GeO 2 Sub>的总数为10至20%); La 2 Sub> O 3 Sub>的0至7%; Gd 2 Sub> O 3 Sub>的0到7%(其中La 2 Sub> O 3 Sub>和Gd 2 Sub> O 3 Sub>为1%到13%); ZrO 2 Sub>的0%至4%; Ta 2 Sub> O 5 Sub>的0到5%; ZnO的0至15%; Sb 2 Sub> O 3 Sub>的0%至2%;和In 2 Sub> O 3 Sub>的0%到1%。光学玻璃具有光学常数,即,折射率(nd)为2.05至2.25,阿贝数(νd)为15至22,并且屈服温度(At)为510℃以下。
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