Design of compact Offner hyperspectral imaging system with Féry prism

被引：5
|
作者：
Cheng X. [1 ,3 ]
Hong Y.-F. [1 ]
Zhang B. [1 ]
Xue Q.-S. [1 ,2 ,3 ]
机构：
[1] Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
[2] State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
[3] Graduate University of Chinese Academy of Sciences
来源：
Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2010年 / 18卷 / 08期
关键词：
Féry prism; Hyperspectral imaging system; Imaging spectrometer; Offner configuration; Optical design;
D O I：
10.3788/OPE.20101808.1773
中图分类号：
学科分类号：
摘要：
In order to decrease the volume and quality of an imaging system and to correct the smile of a spectral image, a novel Offner hyperspectral imaging system with Féry prisms is presented. In this system, a pairs of Féry curved surface prisms are located at two arms of the Offner relay configuration and the light beam passes through the prisms twice to be dispersed. Therefore, the system shows a lighter and smaller structure as compared with conventional one when it gains a given dispersion value. To decrease the nonlinear dispersion of spectral channel in Visible-Near Infrared (VNIR), a couple of anti-dispersion flint Féry prisms are introduced into this system again. Then, two kinds of hyperspectral imaging systems applied to VNIR and Short-Wave Infrared (SWIR) channels are designed, respectively. The analytical results indicate the smiles and keystones of the two spectral imaging systems are less than 0.1 pixel and 0.045 pixel, respectively, and the nonlinearity is less than 0.1, which satisfies the requirements of airborne or spaceborne hyperspectral imagers.
引用
收藏
页码：1773 / 1780
页数：7
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