请教各位GGJJ，
4#B 56f8 我想用zemax的非
序列模式
仿真玻璃diffuser的透射及反射场。
? a/\5`gnN 我用的是thorlabs ground glass diffuser,技术
参数如下：
|#(y?! A ^ Material: N-BK7 (Uncoated)Scratch-Dig: 80-50Clear Aperture: >90% DiameterPolished Side Surface Irregularity: <4λGaussian Intensity Profile120, 220, 600, or 1500 grit
G//hZwf0 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！！
YlZ&4 dTwYDV}: Built-in scattering models xd4~[n\hm Lambertian wS|hc+1 BSDF = 1/
p- The scattered ray projection vector has equal probability anywhere on the projected plane
- The scattered intensity varies like cos(qs)
- The scattered intensity is independent of the incident angle
?ihRt+eR~ Gaussian < 7*9b 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)
nM!_C-yX ABg a3Xd~Q s 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)
