It absorbs shorter light wavelength below 480 nm to protect eyes
所有跟帖:
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UV電筒就是發出此波段的光,如此一來豈非減弱電筒的光亮?黃片就能減弱UV?那紅藍片呢?
-chinomango-
♂
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10/11/2020 postreply
10:20:39
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Red, blue don’t work in your case.
-為你而狂-
♀
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10/11/2020 postreply
11:00:21
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謝謝,那隻是為保護眼睛而非增強熒光了?照相機UV濾鏡是無色的,
-chinomango-
♂
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10/12/2020 postreply
13:47:47