看文献上似乎variable比quick focus好,光斑小 ,而我设计的时候发现用quick focus出来的光斑更小,所以该如何运用variable,marginal ray height 和quick focus阿,到底用哪个好些?谢谢了。
williamopt
2007-05-12 09:42
用于优化还是象质评价?
iwishiwish
2007-05-17 22:57
不懂啊,优化不就是为了获得高像质吗?
williamopt
2007-05-19 23:08
有两点: NT 'Y h 1. 什么叫做高像质?是小的spot size,还是高的MTF?这决定了你的评价方式和优化目标 E:AXnnGKO 2. variable,marginal ray height 和quick focus都可用于优化或像质评价,但不同的要求就需要用不同的方式。当你明确了第一点后第二点就好解决了。
Variable => the results then depends on the merit function criterion (eg, it could be RMS Spot Radius) hq|/XBd|| 09r.0Ks Marginal Ray height => when Pupil Zone setting is 0, you are focus on paraxial focal plane; useful when your system is close to paraxial region. If Pupil Zone is not 0 real ray tracing is used, In general, it' risky to use this option as you only use marginal ray to determine where you focal plane is going to be. bLg1Dd7Q s&4Y+dk93 quick focus: this is take you to the location where RMS Spot Size is minimum. c(:GsoO