双向反射分布函数的测试方法分析和实验研究

齐超; 杨茂华; 孙晓刚; 戴景民

中国激光, 2003, 30 (s1): 146, 网络出版: 2013-01-29

双向反射分布函数的测试方法分析和实验研究

Analysis and Experimental Study οf BRDF Measuring

论文大纲

齐超 ^*杨茂华孙晓刚戴景民

作者单位

哈尔滨工业大学, 黑龙江哈尔滨 150001

激光技术双向反射系数光谱特性爱里圆斑 laser technique bi-directional reflectance factor spectral characteristic Airy disc

摘要

双向反射分布函数(BRDF)有效地描述了材料表面的空间反射特性和光谱特性。分析了BRDF的不同测试方法。研制了双向反射率测试实验台。分别用He-Ne激光器和YVO_4固体激光器,对1500CCR/RC.S.G防水研磨金刚砂在反射天顶角-15°～55°范围进行了测试研究。最后提到了要精确测量BRDF所面临的困难。

Abstract

The spatial reflected characteristic and spectral characteristic from optical material surfaces were effectively described by the BRDF (Bi-directional Reflectance Distribution Function). The several measuring methods of the BRDF were analysed. A experimental table for the BRDF measuring was developed. With He-Ne laser and YVO4 solid laser, the measurements on 1500 CCR/RC.S.G silicon carbide waterproof abrasive paper were made within the -15°-65° of reflectance zenith angle. Finally, some difficulties in measuring BRDF precisely were mentioned.

参考文献

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齐超, 杨茂华, 孙晓刚, 戴景民. 双向反射分布函数的测试方法分析和实验研究[J]. 中国激光, 2003, 30(s1): 146. QI Chao, YANG Mao-hua, SUN Xiao-gang, DAI Jing-min. Analysis and Experimental Study οf BRDF Measuring[J]. Chinese Journal of Lasers, 2003, 30(s1): 146.

双向反射分布函数的测试方法分析和实验研究

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