[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， SdfrLdi}Y  
我想用zemax的非序列模式仿真玻璃diffuser的透射及反射场。 zAxwM-`  
我用的是thorlabs ground glass diffuser,技术参数如下： 5)yQrS !{:  
Material: N-BK7 (Uncoated)Scratch-Dig: 80-50Clear Aperture: >90% DiameterPolished Side Surface Irregularity: <4λGaussian Intensity Profile120, 220, 600, or 1500 grit Cu\A[6g,  
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！！

ya'@AJS

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Built-in scattering models *S.2p*Vd  
Lambertian -hP@L ++D  
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

U!-|.N,  
Gaussian ?6 "F.\O@  
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 {=,?]Z+  
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， P,O9On  
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。 F,e_`  
如需要具体模型参数，请告知。 P$@5&/]  
祝成功！ t9PS5O ;  
MANG2004 SF;;4og  

mang2004:楼主， PQvq$|q  
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。 [gzw<b:`  
如需要具体模型参数，请告知。 v<tH 3I+  
祝成功！ ~?-U J^#  
MANG2004 |RAi6;  
....... (2012-01-20 02:37)  q&Q* gEFK  

@OFl^
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同求ABg模型具体参数一份!感谢版主大大！

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mang2004:楼主， rx_'(  
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。 {x2N~1!E  
如需要具体模型参数，请告知。 0~Yg={IKhK  
祝成功！ pgU54Ef  
MANG2004 D\j1`  
....... (2012-01-20 02:37)  )u\"xxcV  

Sr2c'T"  
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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