UID:248543
UID:49800
UID:246695
UID:273125
UID:149669
UID:243074
UID:275654
UID:38846
wwwtt02:波带片也是衍射光学元件,所以不能等同为光栅。 6t mNfI34 简单地说应该是通过相位来控制光的元件。 (2012-11-10 11:54) v YmtpKNj%
UID:248397