Analysis on the scattering characteristics of two stray light removing metal surfaces
For the purpose of stray light suppression,black anodized and sandblasted aluminum alloy is widespread used in spaceborne cameras.Base on the relative measuring method,in the white light irradiation,measure relative backscatter intensity and BRDF of two black anodized and sandblasted sample surfaces.Contrast these surfaces scattering characteristics.Finally BRDF curves have been drawn with measurement data.In the curves,the BRDF of sandblasted aluminum surface is nearly linear relation.Anodized surface curve,its pulse pattern that BRDF sharply increases among the region of critical angles.It is indicate that in critical angle range,anodized aluminum surface specularity is visible and can be treated as specular reflection which harm for stray light suppression.This experiment research can provide objective reference of these two materials scattering characteristics in specific optical system design.
BRDF Scattering Stray light Anodized Sandblasted
Jianjun Chen Zhen Ma Xueting Duan Qiong Liu Juan Han Xing Fu
Xian institute of optics and precision mechanics of CAS,Xian Shaan xi 710119 China;Graduate univer Xian institute of optics and precision mechanics of CAS,Xian Shaan xi 710119 China Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China
国际会议
沈阳
英文
115-119
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）