摘要
根据大视场短波红外成像光谱仪的要求,考虑到市售探测器的限制,提出了视场分离的方法,分析了视场分离方法的原理.利用此方法设计了一个星载大视场短波红外成像光谱仪光学系统,该系统由11.42°远心离轴三反消像散前置望远系统和2个Offner凸面光栅光谱成像系统组成,运用光学设计软件CODEV和ZEMAX对成像光谱仪光学系统进行了光线追迹和优化,并对设计结果进行了分析,分析结果表明,光学系统在各个谱段的光学传递函数均达到0.7以上,完全满足设计指标要求.
Based on the requirements of shotwave infrared imaging spectrometer with wide field of view,considering the restrictive off-the-shelf detectors,a split field of view（FOV） method was developed.The principle of split field of view was analyzed.A spaceborne shortwave infrared imaging spectrometer with wide field of view was designed using the method.The imaging spectrometer are composed of a 11.42° telecentric off-axis three-mirror anastigmatic telescope and two offner convex grating spectral imaging system.Ray tracing,optimization and analyzing were performed by CODE V and ZEMAX software.The analyzed results demonstrate that the modulation transfer function for different spectral band is more than 0.7 which satisfies the pre-designed requirement.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2011年第5期673-678,共6页
Acta Photonica Sinica
基金
国家高技术研究发展计划(No.2009AA12Z151)资助
