Share Email Print

Optical Engineering

Design and modeling of a compact imaging spectrometer
Author(s): Chen Feng; Anees Ahmad
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A novel low-f-number, wide-field-of-view imaging spectrometer has been designed for measuring the day-glow spectrum over the wavelength range of 260 to 870 nm with spectral resolutions of 0.5 and 0.03 nm. The zero-obscuration all-reflective design is an f/2.0 imaging spectrograph using commercial gratings. The field of view along the spatial direction is 6 deg, with a spatial resolution of 0.1 mrad. The spectrometer is designed to work with a commercially available 1037 x 1340 CCD detector with 6.8 x 6.8-μm pixel size. The imaging spectrometer optics consists of an aspheric toroidal telescope, a slit, an aspheric toroidal collimator, a planar reflective grating, and three off-axis higher-order aspheric imaging mirrors. Significant improvements in the performance have been achieved by introducing aspheric toroidal elements in the design. The weight and size have been reduced by a factor of 20 as compared to previous similar instruments. A virtual prototype of the instrument has also been modeled by using integrated optical and mechanical design software.

Paper Details

Date Published: 1 November 1995
PDF: 5 pages
Opt. Eng. 34(11) doi: 10.1117/12.213653
Published in: Optical Engineering Volume 34, Issue 11
Show Author Affiliations
Chen Feng, Univ. of Alabama in Huntsville (United States)
Anees Ahmad, Univ. of Alabama in Huntsville (United States)

© SPIE. Terms of Use
Back to Top