請教各位，對于zemax模擬高斯散射，我想控制散射角度為5度，我該如何設(shè)置散射公式中的sigma？ WZy6K(18"'  
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圖片:搜狗截圖_2011-01-12_18-00-47.jpg

this is not easy though...... %RR|QY*  
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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 !

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