作者plokijuhygtf (牛奶人)
看板Physics
标题[请益] 光
时间Mon Aug 3 00:21:46 2009
恳请大大帮我推导这个式子:AΩ=A'Ω'
A=source area
Ω=solid angle subtended at the source by the entrance aperture of the optical
system
A'=image area
Ω'=solid angle subtended at the image by the exit aperture
麻烦可以的话请写详细一点,感激不尽!Orz....
相簿里有图,也有一小段叙述,密码是optical
http://www.wretch.cc/album/album.php?id=gary0929&book=7
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