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B270

    Colorless optical glass is mainly for BK7, B270, quartz glss of JGS1,JGS2,JGS3 and other materials. And we can custom made according to customers requirements. Its transmission is 7% higher than common glass, it can arrive at 99%.
And B270 show windows common size for 300*400, 400*600, etc.  

Colorless optical glass--B270 technology requirement
ModelThicknessλtjλ0Tλ0K
(mm)(nm)(nm)(%)
B270 1-5310±10400≥89.5≥1.0