空间调制干涉成象光谱仪中入射狭缝离焦的分析  

ANALYSIS OF INTERFEROGRAM IN SPATIALLY MODULATED IMAGING INTERFEROMETER DUE TO OFF-FOCUS INPUT SLIT

作　　者：高瞻[1] 相里斌[1] 周仁魁[1] 薛鸣球[1] 

机构地区：[1]中国科学院西安光学精密机械研究所空间光学室,西安710068

出　　处：《光子学报》1998年第1期77-80,共4页Acta Photonica Sinica

基　　金：国家863计划(308)资助

摘　　要：本文讨论了自行研制的空间调制干涉成象光谱仪中入射狭缝离焦所带来的问题，推导了禹焦后的光程差表达式，讨论了它对干涉图的影响，得到该离焦量主要受空间分辨率限制的结论．A novel spatially modulated imaging interferometer is introduced. The optical pathdifference expression and interference fringe disortions due to off-focus is derived and discussed. Theconclusion that the off-focus is mainly restricted by the spatial resolution is obtained.

关 键 词：成象光谱仪 空间调制 干涉仪 离焦 入射狭缝 

分 类 号：TH744.1[机械工程—光学工程]