Measurement and application of bidirectional reflectance distribution function

Fei Liao; Lin Li; Chengwen Lu

doi:10.1117/12.2246859

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19 October 2016 Measurement and application of bidirectional reflectance distribution function

Fei Liao; Lin Li; Chengwen Lu

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Proceedings Volume 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation; 101541G (2016) https://doi.org/10.1117/12.2246859
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

When a beam of light with certain intensity and distribution reaches the surface of a material, the distribution of the diffused light is related to the incident angle, the receiving angle, the wavelength of the light and the types of the material. Bidirectional Reflectance Distribution Function (BRDF) is a method to describe this distribution. For an optical system, the optical and mechanical materials’ BRDF are unique, and if we want to calculate stray light of the system we should know the correct BRDF data of the whole materials. There are fundamental significances in the area of space remote sensor where BRDF is needed in the precise radiation calibration. It is also important in the military field where BRDF can be used in the object identification and target tracking, etc. In this paper, 11 kinds of aerospace materials’ BRDF are measured and more than 310,000 groups of BRDF data are achieved , and also a BRDF database is established in China for the first time. With the BRDF data of the database, we can create the detector model, build the stray light radiation surface model in the stray light analysis software. In this way, the stray radiation on the detector can be calculated correctly.

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Fei Liao, Lin Li, and Chengwen Lu "Measurement and application of bidirectional reflectance distribution function", Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 101541G (19 October 2016); https://doi.org/10.1117/12.2246859