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Preferably Pb-free and As-free optical glasses with Tg≦500° C.
Preferably Pb-free and As-free optical glasses with Tg≦500° C.
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机译：优选地，Tg≤500℃的无铅和无砷光学玻璃。
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摘要
The present invention relates to preferably lead-free and arsenic-free optical glasses, having a refractive index of 1.48≦nd≦1.56, an Abbe number of 64≦νd≦72, a low transformation temperature (Tg≦500° C.) and good ion exchange properties, as well as good chemical resistance and crystallization stability, and comprising the following composition (in % by weight):;
;The glass may additionally contain standard refining agents. The invention also relates to the use of the optical glasses according to the invention in the application areas of imaging, projection, telecommunications, optical communication technology and/or laser technology.
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机译：本发明涉及优选地无铅且无砷的光学玻璃，其具有1.48≤n d ≤1.56的折射率，阿贝数64≤νd≤72，低转变温度（ Tg≤500℃）和良好的离子交换性能，以及良好的耐化学性和结晶稳定性，并且包含以下组成（以重量％计）：
<标题/> <行> entry align =“ center” nameEnd =“ 2” nameStart =“ offset” rowSep =“ 1” /> <行> SiO 2 53-58 <行> B 2 O 3 11-15 <行> Al 2 O 3 16-20 <行> Na 2 O 0-13 <行> K 2 O 0-13 <行> ΣM 2 O 9-13 <行> F 0.5-4 <行> entry align =“ center” nameEnd =“ 2” nameStart =“ offset” rowSep =“ 1” /> ;玻璃还可以包含标准的澄清剂。本发明还涉及根据本发明的光学眼镜在成像，投影，电信，光通信技术和/或激光技术的应用领域中的用途。
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