星载大视场短波红外成像光谱仪光学设计

薛庆生; 林冠宇; 宋克非

doi:doi:10.3788/gzxb20114005.0673

光子学报, 2011, 40 (5): 673, 网络出版: 2011-06-14

星载大视场短波红外成像光谱仪光学设计

Optical Design of Spaceborne Shortwave Infrared Imaging Spectrometer with Wide Field of View

论文大纲

薛庆生 ^*林冠宇宋克非

作者单位

中国科学院长春光学精密机械与物理研究所, 长春 130033

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CODE V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.

Abstract

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.

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薛庆生, 林冠宇, 宋克非. 星载大视场短波红外成像光谱仪光学设计[J]. 光子学报, 2011, 40(5): 673. XUE Qing-sheng, LIN Guang-yu, SONG Ke-fei. Optical Design of Spaceborne Shortwave Infrared Imaging Spectrometer with Wide Field of View[J]. ACTA PHOTONICA SINICA, 2011, 40(5): 673.

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