冷屏黑层抑制杂散辐射分析研究  

Analysis and study of suppressing stray radiation using black coating of cold shield

作　　者：林国画[1] 东海杰[1] 孟令超[1] 孟令伟[1] 

机构地区：[1]华北光电技术研究所,北京100015

出　　处：《激光与红外》2013年第8期913-915,共3页Laser & Infrared

摘　　要：通过对冷屏抑制杂散辐射原理的分析,得出测量冷屏内表面的反射是研究工作的切入点,从而从基本能量传递方程中确定表征冷屏内表面黑层特性的BRDF。通过对2.5～14μm冷屏黑层BRDF的测试,发现在接收角度变小的情况下,黑层BRDF出现较大的变化,确定了下一步改进的方向。The principle of suppressing stray radiation with cold shield is analyzed, it is found that the internal surface reflection measurement of cold shield is the key point. BRDF can be obtained from the energy transfer equation, it can characterize the physical property of cold shield black coating. Through BRDF measurement of 2. 5 - 14μm cold shield black coating, it is found that the variation of BRDF is bigger when reflection angle gets smaller.

关 键 词：冷屏 双向反射分布函数 黑层 杂散辐射 

分 类 号：TN214[电子电信—物理电子学]