kimclps:使用說明書Chapter 2 page 26
VrnK)za*H The chief ray (or principal ray) from every field point will be iterated to pass
s&_IWala through the center (x=0, y=0) of the stop surface, unless you override this behavior
Hz!U_? with chief ray aiming (this is only necessary in a few unusual sit ..
(2016-10-10 14:44) )$lSG}WD