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
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.
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.