this is not easy though...... 4,aBNuxWd /vQ^>2X% I guess you need to give a try as sigma indicates the projected width of 1/e squared value of the peak irrdiance in direction cosine space...... for a normally incidence it should be around ~ cosine 85. Good luck !
Hi MANG2004, 7;_5[_ Ft|a/e I am curious about your calculation, too. Plus, the definition of σ refers to 1/e^2 width not the FWHM. Even your calculation/defintion is correct. I have a doubt that it will work when the specualr incident ray angle is not normal......... QK@z##U b"zq3$6* For thsoe who knows it better, please have some input. I am rather curious, too!! Thanks!!
mang2004
2011-01-14 22:43
回楼主gmfc: hrW.TwK 这些公式都来自 于ZEMAX用户手册有关非序列元件散射章节,稍加研究就可得出。给我发消息留下你的邮箱,我可以把推导过程发给你。 pkT
a^I MANG2004 Y# lE
mang2004
2011-01-14 22:45
Hi, hopebox, j`#|z9`(pB 6[CX[=P30 Thanks for your reply. Really like those words “guess”, “doubt”… 0\mM^+fO ce;9UBkOg2 For your curiosity, have good luck! "~Eo=R0O zJV4) MANG2004 u )ld