增透膜：245-400 nm、350-700 nm、650-1050 nm
通光孔径：Ø18 mm/Ø20 mm
更多设计自由度，可实现更高的成像质量
单点低反增透膜，工作波长下R<0.25%
空气隙石英设计，高损伤阈值
通光孔径：Ø18 mm
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