[求助]应该选择哪种内建模型（散射模型）来模拟玻璃diffuser的表面？ [复制链接]

请教各位GGJJ， mz>GbImVD~  
我想用zemax的非序列模式仿真玻璃diffuser的透射及反射场。 z=FOymvC  
我用的是thorlabs ground glass diffuser,技术参数如下： \rpXG9  
Material: N-BK7 (Uncoated)Scratch-Dig: 80-50Clear Aperture: >90% DiameterPolished Side Surface Irregularity: <4λGaussian Intensity Profile120, 220, 600, or 1500 grit SSQB1c  
请问是否可以使用zemax的内建散射模型？如果可以，应该使用哪一种？谢谢！！

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Built-in scattering models ]&;K:#J  
Lambertian 4 (c{%%  
BSDF = 1/p

• The scattered ray projection vector has equal probability anywhere on the projected plane    
• The scattered intensity varies like cos(q_s)    
• The scattered intensity is independent of the incident angle

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Gaussian
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BSDF(x) = A*exp[-|x|²/s²]

• The scattering distribution is symmetric in direction cosine space    
• s determines the width of the Gaussian distribution on the projected plane    
• Maximum value allowed for s is 5 (for s > 5, distribution is nearly Lambertian)

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ABg _ ?o>i/  
BSDF(x) = A/[B + |x|^g]

• Widely used to model scattering due to random isotropic surface roughness    
• Input values for A, B, and g are provided in an ASCII file (in the <data>\ABg_Data\ directory)    
• Input value limitations: A >= 0, B >= 1.0E-12 (unless g = 0, then B = 0 is allowed)

楼主， #&}j'oD|N  
从diffusion power vs. angle 曲线看，朗伯散射模型是不合适的，考虑用高斯和ABg散射模型更现实。 ZOBcV,K  
如需要具体模型参数，请告知。 ]~
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祝成功！ LC,6hpmh  
MANG2004 nv<t$r  

mang2004:楼主， ~3Za"q*0s  
从diffusion power vs. angle 曲线看，朗伯散射模型是不合适的，考虑用高斯和ABg散射模型更现实。 {oS/Xa  
如需要具体模型参数，请告知。 -,Js2+QZ#  
祝成功！ pD!j#suMA  
MANG2004 UIkO_/}  
....... (2012-01-20 02:37)  *'*,mfk[  

8!b>[Nsc  
同求ABg模型具体参数一份!感谢版主大大！

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mang2004:楼主， w ~"%&SNN  
从diffusion power vs. angle 曲线看，朗伯散射模型是不合适的，考虑用高斯和ABg散射模型更现实。 s(ap~UCOw  
如需要具体模型参数，请告知。 L7nG5i  
祝成功！ GIT"J}b}  
MANG2004 cW_l|  
....... (2012-01-20 02:37)  , Y,^vzX6  

sxS%1hp3  
同求ABg模型具体参数一份~~感谢版主~~O(∩_∩)O谢谢。我的邮箱私信给您哈

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