| Stray light suppression in BRDF measurement infrared optical system |
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| 引用本文： | 齐超,杨春玲,李文娟,戴景民. Stray light suppression in BRDF measurement infrared optical system[J]. 中国光学快报(英文版), 2003, 1(7) |
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| 作者姓名： | 齐超 杨春玲 李文娟 戴景民 |
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| 作者单位： | School of Electrical Engineering & Automation，Harbin Institute of Technology，Harbin 150001，School of Electrical Engineering & Automation，Harbin Institute of Technology，Harbin 150001，School of Electrical Engineering & Automation，Harbin Institute of Technology，Harbin 150001 School of Electrical and Electronic Engineering，Harbin University of Science and Technology，Harbin 150040，School of Electrical Engineering & Automation，Harbin Institute of Technology，Harbin 150001 |
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| 基金项目： | This work was supported by the Scientific Research Foundation of Harbin Institute of Technology project (HIT. MD. 2001.17). |
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| 摘 要： | A set of system based on personal computer for the bi-directional reflectance distribution function (BRDF) measurement was developed, whose laser wavelengths cover 0.6328, 1.34, 3.39, and 10.6 μm from visible to infrared. Stray light in BRDF measurement system was analyzed. It can be reduced and suppressed by the design of the system light path in BRDF measurement system, the choice of the measuring scheme, the processing to the optoelectronic signal, and the radiation control of the optical components and mechanical equipments. So the minimum measurable value of BRDF is less than 10-5/sr.
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Stray light suppression in BRDF measurement infrared optical system |
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| Abstract: | A set of system based on personal computer for the bi-directional reflectance distribution function (BRDF)measurement was developed, whose laser wavelengths cover 0.6328, 1.34, 3.39, and 10.6 μm from visibleto infrared. Stray light in BRDF measurement system was analyzed. It can be reduced and suppressed bythe design of the system light path in BRDF measurement system, the choice of the measuring scheme, theprocessing to the optoelectronic signal, and the radiation control of the optical components and mechanicalequipments. So the minimum measurable value of BRDF is less than 10-5/sr. |
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