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Proceedings Paper

Development and characterization of a miniature dual-channel spectrometer for spectrocolorimetry
Author(s): Harry J. Oana; Lothar Jahreiss; Danny C. Rich; Stephan Trost
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Paper Abstract

A high performance, miniature, dual-channel spectrometer has been design ed for use in spectrocolorimeters. It contains an aberration corrected holographic grating at f/1.6 and two custom photodiode linear arrays (128 channels each) covering the visible spectrum (380 nm to 720 nm). The spectrometer is interfaced with optical fibers and is calibrated separately from the instrument. A wavelength calibration method based on several spectral lines was developed for the spectrometer. The method calculates the bandpass function, the centroid location and the bandwidth at the calibration wavelengths. The dispersion curve is fitted with a parabolic correction for the residuals. The wavelength scale precision and accuracy were measured.

Paper Details

Date Published: 14 August 1992
PDF: 17 pages
Proc. SPIE 1681, Optically Based Methods for Process Analysis, (14 August 1992); doi: 10.1117/12.137733
Show Author Affiliations
Harry J. Oana, Datacolor International (United States)
Lothar Jahreiss, Datacolor International (United States)
Danny C. Rich, Datacolor International (United States)
Stephan Trost, Datacolor International (United States)

Published in SPIE Proceedings Vol. 1681:
Optically Based Methods for Process Analysis
David S. Bomse; Harry Brittain; Stuart Farquharson; Jeremy M. Lerner; Alan J. Rein; Cary Sohl; Terry R. Todd; Lois Weyer, Editor(s)

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