kimclps:使用說明書Chapter 2 page 26
P~@I`r567 The chief ray (or principal ray) from every field point will be iterated to pass
^ANz=`N5, through the center (x=0, y=0) of the stop surface, unless you override this behavior
w%kaM= with chief ray aiming (this is only necessary in a few unusual sit ..
(2016-10-10 14:44)
`u7twW*U2