Shaanxi Key Laboratory of Optical Information Technology, The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, China.
Opt Lett. 2010 May 1;35(9):1458-60. doi: 10.1364/OL.35.001458.
A novel approach is proposed for measuring a surface's bidirectional reflectance distribution function rapidly and accurately. By using a hemi-parabolic mirror, the angular distribution of a surface's reflectance in three-dimensional space can be transformed into a two-dimensional planar image, which is collected by a CCD camera and goes through a followed coordinate mapping. It is shown that, using this method and apparatus, measurement of in plane and out of plane reflectance distributions may be realized within two minutes.
提出了一种快速准确测量表面双向反射分布函数的新方法。通过使用半抛物面镜，可以将表面反射的角分布从三维空间转换为二维平面图像，该图像由 CCD 相机收集，并经过跟随的坐标映射。结果表明，使用该方法和装置，可以在两分钟内实现平面内和平面外反射分布的测量。
