发明授权
US06903038B2 Glass with a minimal stress-optic effect 失效
具有最小应力光学效应的玻璃

Glass with a minimal stress-optic effect
摘要:
A glass comprising in mole percent based on oxide: SiO255-70 PbO30-38 Na2O>0-4.5 K2O 0-2.5 and essentially free of TiO2.
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