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Proceedings Paper

Constant-bandwidth grating-lens spectrometer
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Paper Abstract

Most spectrometers illuminate a dispersing grating with collimated light. This form of the instrument is optimum when high spectral resolution is required. There are many applications such as color matching and desktop publishing that require only 10 nm resolution over the limited spectral region of 390 nm to 700 nm. In addition, the design must lead to a configuration that is affordable. This paper describes a spectrometer design that uses divergent light incident on a grating. The grating is followed by a glass lens used to focus the light on the exit slit. This design uses a simple scanning mechanism that combines the motion of the grating with the chromatic aberrations of the lens to produce a linear-dispersion constant-bandwidth spectrometer. In this configuration the spectrometer is compact a light.

Paper Details

Date Published: 27 April 1995
PDF: 9 pages
Proc. SPIE 2413, Color Hard Copy and Graphic Arts IV, (27 April 1995); doi: 10.1117/12.207592
Show Author Affiliations
Edward M. Granger, Light Source, Inc. (United States)
James M. Zavislan, Lucid Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 2413:
Color Hard Copy and Graphic Arts IV
Jan Bares, Editor(s)

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