Share Email Print
cover

Proceedings Paper

Convex grating imaging spectrograph with light weight and high fidelity
Author(s): Yiqun Ji; Yuheng Chen; Quan Liu; Shanbing Zhu; Guangbiao Gong; Weimin Shen
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The optimized design, alignment and experimental results of a compact convex grating hyper-spectral imager with high fidelity are reported and evaluated. The imager works in visible wavelength range from 0.4 to 0.78 μm. The numerical aperture of system is 0.2, and the entrance slit images with -1 magnification and linearly dispersed into 7.5mm in width. In addition, the spectral sample resolution is 0.76nm/pixel with negligible distortion. In order to get good performance and facilitate alignment, the optical system is both imagery and objective telecentric. The efficiency of the convex grating can up to about 40 percents by ion-beam etching. The size is 190mm×180mm×90mm and the mass is less than 1kg. The light weighted compact system is portable, and it is feasible in remote sensing.

Paper Details

Date Published: 26 January 2009
PDF: 8 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71560K (26 January 2009); doi: 10.1117/12.806070
Show Author Affiliations
Yiqun Ji, Soochow Univ. (China)
Yuheng Chen, Soochow Univ. (China)
Quan Liu, Soochow Univ. (China)
Shanbing Zhu, Soochow Univ. (China)
Guangbiao Gong, Soochow Univ. (China)
Weimin Shen, Soochow Univ. (China)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
Yunlong Sheng; Yongtian Wang; Lijiang Zeng, Editor(s)

© SPIE. Terms of Use
Back to Top