一般鏡片每個麵有百分之幾的反射損失,鍍了可見光增透膜可以把反射損失減小到每麵<1%。
有些特殊鏡頭鍍dual bandpass膜,比如可見和紅外,有的鍍high pass, high cutoff, etc, etc。
一般鏡片每個麵有百分之幾的反射損失,鍍了可見光增透膜可以把反射損失減小到每麵<1%。
有些特殊鏡頭鍍dual bandpass膜,比如可見和紅外,有的鍍high pass, high cutoff, etc, etc。
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