Stray Light Analysis of Optical System

Gao Zhishan

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Stray Light Analysis of Optical System

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- Stray Light Analysis of Optical System
- Optics and Precision Engineering Vol. 0, Issue 2, Pages: 1-5(1992)
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- Published Online：15 April 1992，
  
  Published：15 April 1992
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高志山. 光学系统的杂光计算分析[J]. 光学精密工程, 1992,(2): 1-5

Gao Zhishan. Stray Light Analysis of Optical System[J]. Editorial Office of Optics and Precision Engineering, 1992,(2): 1-5
高志山. 光学系统的杂光计算分析[J]. 光学精密工程, 1992,(2): 1-5 DOI：

Gao Zhishan. Stray Light Analysis of Optical System[J]. Editorial Office of Optics and Precision Engineering, 1992,(2): 1-5 DOI：

摘要

探讨了光学系统杂光分析方法

[提出了鬼像判别依据

在修改小镜面散射理论中几何遮挡因子(Geometrical Masking-shadowing Factor)基础上

抽象出光学系统中表面粗糙度σ

/λ≥1.0

的表面双向反射分布函数(BRDF)模型

同时应用矢量微扰理论给出表面粗糙度σ

/λ

1.0的 BRDF 模型

并编制杂光分析程序

Abstract

In this paper

we discuss the techniques of stray light analysis in optical system when the ghost image happens.In the meantime

two different surface theories are given

they can describe surface scattering character ics

which are typical in optical system.The first is correctly accounting for shadowing-masking

which based on mirror-like facets reflection theory

with surface roughness small compare to wavelength.The second is a rigorous theory which is based on vector—perturbation theory.Then

the utility of these two models of stray light calculations is discussed.

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