光学精密工程2016，Vol.24Issue(11)：2627-2635,9.DOI:10.3788/OPE.20162411.2627
航天消光黑漆双向反射分布函数的测量与应用
BRDF measurement of matte coating and its application
摘要
Abstract
To explore the scattering characteristics of the stray light on hood surface of a camera ,the Bidirectional Reflectance Distribution Function (BRDF) of the matte coating (Z306) on a aluminium plate specimen was measured and modeled to suppress the stray light . The BRDF value of the specimen coated with matte coating Z 306 at 0 .65 μm was obtained .On the basis of the scattering characteristics of the specimen coated with matte coating Z 306 ,the microfacet-based model suitable for roughness matte coating was selected and corrected .The corrected microfacet-based model was used to model and process the measurement data and to obtain the BRDF data of the specimen in the whole hemisphere space to make up the defects of the less data and measurement errors .The BRDF data of the matte coating was induced to the software to analyze the stray light of an optical system and to compare the performance with the results of the stray light measurement .It shows that after the measurement data are processed by the correction microfacet-based model ,the analysis results of the stray light have high consistency with the measurement results of the stray light , and the logarithm value of the ratio of tested value and analyzed value is less than 0 .5 . The results demonstrate that the BRDF model is necessary and the data processing is accurate ,which provides an important method for stray light suppression in optical systems .关键词
航天相机/消光黑漆/双向反射分布函数/光学系统/杂散光/建模/误差分析Key words
space camera/matte coating/Bidirectional Reflectance Distribution Function (BRDF )/optical system/stray light/modeling/error analysis分类
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赵青,赵建科,徐亮,刘峰,李朝辉..航天消光黑漆双向反射分布函数的测量与应用[J].光学精密工程,2016,24(11):2627-2635,9.基金项目
神光Ⅲ大科学工程资助项目 （）
