Study on imaging spectrometer with smile and keystone eliminated
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- 作者：Xiaolong Zhang ; long1986lucky@163.com ; Kun Yu ; Jun Zhang
- 关键词：Grating-based imaging spectrometer instrument ; Smile ; Keystone ; Off-axis lens
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：15 March 2017
- 年：2017
- 卷：387
- 期：Complete
- 页码：245-251
- 全文大小：2183 K
- 卷排序：387
文摘
In this work, the formulas of image height in two-dimensional field about tilted imaging system of grating-based imaging spectrometer instrument are deduced firstly. The determined expressions of smile and keystone are obtained. A long-wave infrared imaging spectrometer is designed by adding an off-axis lens behind the plane grating to eliminate the smile and keystone. The maximum of smile and keystone are less than 8.57 µm and 13.33 µm, respectively.