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troer 2010-06-10 17:22

zemax菲涅耳透镜设计

zemax设计菲涅耳透镜时,  fresnel1参数中+Depth/-Freq、Radius、conic分别指什么?
hopebox 2010-06-10 21:36
Allow me to repost  here for depth/frequency setting fVG$8tB  
The main fresnel lens types are: a5X`jo  
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    * Constant groove depth. p}96uaC1  
    * Contant groove pitch types. lt{lHat1  
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So if your depth is fixed you will define +ve value in the cell and to specify the "height" or "depth" of each groove feature. If the frequency of the groove is fixed then you use -ve value. Say putting down - 5 this implies that there are 5 grooves with a unit length. =d}gv6v2S  
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For radius, this is the curvature of the base surface. If you define one such lens and chaneg the radius and you shall see what it means. A graphic tells lounder than words. ht2 f-EKf{  
z~BD(FDI  
For conic: check conic section using Wikipedia and you should see what conic constant means. %)BwE  
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troer 2010-06-13 19:50
Thanks very much!
lyyts1987 2010-08-31 22:56
hopebox确实无处不在啊,能不能加你qq?
wangbiyi 2010-09-28 21:29
Thanks very much
zhaoxiaonan 2016-04-13 11:25
hopebox真的是无处不在
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