小型Offner光谱成像系统设计.PDF

13　6 　 Vol. 13　No. 6 2005 12 　　　　　　　　　　　　Optics and Precision Engineering 　　　　　　　　　　 Dec. 2005 　1004-924X(2005)06-0650-08 Offner 郑玉权 (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) :Offner , Offner Offner , , Offner 、 、、。 , , Offner , 。 　　:光谱成像系统;超光谱;二级光谱;凸光栅;曲面棱镜 :H744. 1;P73　　:A Design of compact Offner spectral imaging system ZHENG Yu-quan (S tate K ey L aboratory of App lied Op tics,Changchun Institute of Op tics, Fine Mechanics and P hysics,Chinese Academy of S cience, Changchun 130033, China) 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 spec- tral smile and little keystone. he design results of two kinds of spectral imaging systems, and meth- od to filter secondary spectrum and high power spectrum were given. he results show that the sys- tem can satisfy the need of hyperspectral imager, and can be mounted on small or mini satellites. Key words:spectral imaging system;hyperspectrum;secondary spectrum;convex grating;curved prism [1] 。Goetz 1 　引　言 , 20 , [2] , [3] [4] [5] [6] 　　 AVRIS 、CASI 、