GaAs光电阴极与景物反射光谱的光谱匹配系数

SPECTRAL MATCHING FACTORS OF GaAs PHOTOCATHODE FOR REFLECTING SPECTRUMS OF SCENES

本文根据光谱匹配系数的表达式，计算了ＧａＡｓ 光电阴极与暗绿色涂层、粗糙混凝土和绿色草木的光谱匹配系数在满月光下，其结果分别为０４５１９、０５１８４ 和０６９２７；在晴朗星光下，分别为０５８６６、０６１２５ 和０６５１３并分析比较了ＧａＡｓ 和两种Ｓ２５光电阴极与景物反射光谱的光谱匹配系数。

In this paper according to the formula of spectral matching factor,the spectral matching factors of GaAs photocathode for dark green paint,rough concrete and green vegetation are calculated.The calculation results are 0.4519,0.5184 and 0.6927 under the full moon radiation and 0.5866, 0.6125 and 0.6513 under the clear star radiation respectively.The spectral matching factors of GaAs and S 25 photocathodes for reflecting spectrums of scenes are analysed and compared.It shows that the third generation nightvision devices which have good observational results are relative to the good matching degree of the photocathodes for the reflecting spectrums of scenes.