【作者】 齐超； 杨茂华； 孙晓刚； 戴景民；

【Author】 QI Ghao, YANG Mao-hua, SUN Xiao-gang, DAI Jing-min(Harbin Institute of Technology, Harbin, Heilongjiang 150001, China)

【机构】 哈尔滨工业大学；

【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YVO₄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。更多还原

【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°-55° of reflectance zenith angle. Finally, some difficulties in measuring BRDF precisely were mentioned.更多还原