涂层目标1.06μm偏振双向反射分布函数测量方法研究  

Study of measurement method of 1.06μm polarized bidirectional reflectance distribution function for painted surface

作　　者：冯巍巍[1,2] 魏庆农[1,2] 汪世美[1,2] 刘世胜[1,2] 伍德侠[1,2] 刘增东[1,2] 王东方[1,2] 

机构地区：[1]中国科学院安徽光学精密机械研究所中国科学院环境光学重点实验室,合肥230031 [2]安徽省环境光学重点实验室,合肥230031

出　　处：《光学技术》2009年第2期299-302,共4页Optical Technique

基　　金：973国家重大安全基础研究项目资助(61341020201-1)

摘　　要：为了获取复杂涂层目标的光学散射特性,介绍了一套全自动偏振双向反射分布函数测量系统,可以测量半球空间内几乎所有角度下的偏振双向反射分布函数。采用双波片旋转法实现了对光的偏振调制,利用离散傅里叶变换反演出了涂层目标的Muller矩阵。给出了某涂层样品的测量结果与模型的计算比较。结果表明,这种方法是一种测量涂层目标偏振双向反射分布函数的有效方法。In order to get the optical scattering properties of complex painted material, a system used for the measurement of the polarized Bidirectional Reflectance Distribution Function （BRDF）is proposed which could do measurement at any illumination and viewing geometric of the hemisphere. Two retarders are used to modulate the polarization states, the Mueller matrix elements are got through Discrete Fourier Transform. The comparison between the experiment result and model calculation are given for a painted sample. The result shows that it＇ s an effective way to get the polarized Bidirectional Reflectance Distribution Function.

关 键 词：偏振 双向反射分布函数(BRDF) 离散傅里叶变换 

分 类 号：O434.12[机械工程—光学工程]