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Proceedings Paper

An optical model of wide field of view superspectral imager
Author(s): Zhiping He; Weiming Xu; Jianjun Jia; Rong Shu; Jianyu Wang
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Paper Abstract

This paper introduces a skill but practical optical model of developing wide field of view push-broom hyperspectral imager. Usually, the field of view of a push-broom hyperspectral imaging sensor is less than 30 degrees, and it can not meet the requirement for typical earth observation mission. This paper addresses the difficulty of developing wide field of view imaging sensor and presents an optical model of wide field of view hyperspectal imager. The optical model of hyperspectral imager is composed of a large field of view lens, a long entrance slit, two spectrometers and two area detector arrays and has a cross-track field of view of 60 degrees. The lens images a ground belt onto the long entrance slit, the slit acts as a field stop and allow only light from a linear belt in the scene to enter the imager. The light passing through the long slit is divided two equal parts using a special skill and it is separated and imaged on the area detector arrays by the two spectrometer. The analysis shows that the wide field of view hyperspectral imager doesn't drop down the spatial resolution.

Paper Details

Date Published: 8 January 2008
PDF: 8 pages
Proc. SPIE 6835, Infrared Materials, Devices, and Applications, 68351F (8 January 2008); doi: 10.1117/12.756030
Show Author Affiliations
Zhiping He, Shanghai Institute of Technical Physics (China)
Weiming Xu, Shanghai Institute of Technical Physics (China)
Jianjun Jia, Shanghai Institute of Technical Physics (China)
Rong Shu, Shanghai Institute of Technical Physics (China)
Jianyu Wang, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 6835:
Infrared Materials, Devices, and Applications
Yi Cai; Haimei Gong; Jean-Pierre Chatard, Editor(s)

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