likang80 发表于 2004-9-27 18:54:00

clear aperture 是通光孔径嘛？



clear aperture 是通光孔径嘛？



zhouxiaojun 发表于 2004-9-27 20:19:00



<P>是的</P>



cuiwangbin 发表于 2008-12-2 11:32:52



顺便问一下这个老帖子，有效的通光口径的计算怎么算呢？比如换算成百分比，是用面积比还是用长度比等？



cout 发表于 2008-12-5 17:18:56



haha, supplier hope they can use dimension percentage to calculate CA, but custome hope CA can be specified with area percentage, hehe, Just kidding



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