See here

來源: 於 2012-02-01 08:05:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

Spherical aberration graph

http://amazing-space.stsci.edu/resources/explorations/groundup/lesson/basics/g11/

Coma video clip

http://www.youtube.com/watch?v=EXmaY2txEBo

還有象散 astigmatism, 水平和垂直方向不能聚焦在一起Astigmatism

http://en.wikipedia.org/wiki/Astigmatism