Green coatings are an important military camouflage material. Based on the theory of polarization detection,polarization properties and reflection properties of deep green and medium green coatings were compared and analyzed by the polarization experiments of hyper spectral reflectance,and the change rule of bidirectional reflectance function and linear polarization degree with the wavelengths was obtained;the relationship between bidirectional reflectance function BRF and linear polarization degree DOLP was also obtained. The results show that:(1) Compared with the near-infrared band,the BRF difference between two coatings in the visible band is obvious,and detection angle of specular reflection is easier to distinguish the two coatings. (2) When the incident angle is constant,the linear polarization degree of coating increases with the increase of detection angles. With the reduction of the incident angle or detection angle of specular reflection,the difference of DOLP between green and medium green coatings increases. (3) The BRF and DOLP changes of coatings have negative correlation in the 400-1000nm bands.
参考文献
相似文献
引证文献
引用本文
李兆兆,武文远,黄雁华,杨云涛,范化喜.涂层材料的偏振光谱反射特性分析[J].激光与红外,2017,47(5):575~581 LI Zhao-zhao, WU Wen-yuan, HUANG Yan-hua, YANG Yun-tao, FAN Hua-xi. Analysis on polarization spectral reflectance properties of coating materials[J]. LASER & INFRARED,2017,47(5):575~581