| 小型Offner光谱成像系统的设计 |
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| 引用本文： | 郑玉权.小型Offner光谱成像系统的设计[J].光学精密工程,2005,13(6):650-657. |
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| 作者姓名： | 郑玉权 |
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| 作者单位： | 中国科学院,长春光学精密机械与物理研究所,应用光学国家重点实验室,吉林,长春,130033 |
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| 基金项目： | 应用光学国家重点实验室开放基金. |
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| 摘 要： | 研究了在发散光束中使用色散元件的小型Ofiner光谱成像系统，分析了Ofiner凸光栅光谱成像系统和Ofiner曲面棱镜光谱成像系统的优缺点，与传统准直光束中使用光栅或棱镜的方法相比，Ofiner光谱成像系统具有体积小、质量轻、无谱线弯曲、色畸变小的特点。给出了两种系统的设计结果，并研究了滤除二级和高级次光谱的方法，给出了与Ofiner光谱成像系统匹配的不同形式的像方远心前置光学系统，可满足微小卫星超光谱成像仪的要求。
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| 关 键 词： | 光谱成像系统 超光谱 二级光谱 凸光栅 曲面棱镜 |
| 文章编号： | 1004-924X(2005)06-0650-08 |
| 收稿时间： | 2005-04-22 |
| 修稿时间： | 2005-08-18 |
Design of compact Offner spectral imaging system |
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| ZHENG Yu-quan.Design of compact Offner spectral imaging system[J].Optics and Precision Engineering,2005,13(6):650-657. |
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| Authors: | ZHENG Yu-quan |
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| Affiliation: | State Key Laboratory of Applied Optics ,Changchun Institute of Optics, Fine Mechanics and Physics ,Chinese Academy of Science, Changchun 130033, China |
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| Abstract: | A compact Offner spectral imaging system using dispersive elements in divergent beam was designed, and the advantages and disadvantages of the Offner spectral imaging system with convex grating and curved prism were analyzed. Compared with spectral imaging systems with grating or prism, Offner spectral imaging systems have characteristics of small volume, light weights, free spectral smile and little keystone. The design results of two kinds of spectral imaging systems, and method to filter secondary spectrum and high power spectrum were given. The results show that the system can satisfy the need of hyperspectral imager, and can be mounted on small or mini satellites. |
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| Keywords: | spectral imaging system hyperspectrum secondary spectrum convex grating curved prism |
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