[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， ]PlY}VOY  
我想用zemax的非序列模式仿真玻璃diffuser的透射及反射场。 oE!hF}O  
我用的是thorlabs ground glass diffuser,技术参数如下： U+.PuC[3  
Material: N-BK7 (Uncoated)Scratch-Dig: 80-50Clear Aperture: >90% DiameterPolished Side Surface Irregularity: <4λGaussian Intensity Profile120, 220, 600, or 1500 grit W1?!iE~tO  
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！！

,TF<y#wed

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:/@k5#DY  
Built-in scattering models n9kd2[s|  
Lambertian P?q G  
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

h-r6PY=i  
Gaussian 'f-
  
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 Ql~#((K  
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)

学习，厉害厉害厉害了

mang2004:楼主， )nhfkW=e  
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。 q1UBKhpnH  
如需要具体模型参数，请告知。 )j\r,9<K+5  
祝成功！ <E"*)Oi  
MANG2004 '#H&:Htm;L  
....... (2012-01-20 02:37)  .SG0}8gW  

@|^jq  
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

学习学习

mang2004:楼主， ^Wm*-4  
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。 JxHv<p[  
如需要具体模型参数，请告知。 7u|%^Ao6  
祝成功！ "ct58Y@  
MANG2004 -n-Z/5~ X  
....... (2012-01-20 02:37)  ;7L;  

|WBZN1W)  
同求ABg模型具体参数一份!感谢版主大大！

楼主， L?Cjo4xS  
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。 kf'=%]9#_T  
如需要具体模型参数，请告知。 n>S2}y
 
祝成功！ a
Dh|48}X  
MANG2004 *x!LKIpv