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Proceedings Paper

Color shifts in a phosphor display with laser eye protection: LICOM 1
Author(s): Elmar T. Schmeisser; Jim Dykes; Paul Garcia; Tom Kuyk
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Paper Abstract

A color naming task using a computer controlled color monitor (p22 blue, p43 green and p22 and phosphors) was performed with various laser eye protection devices (LEPD) mounted in spectacle frames. Eight standard display colors were used, and were chosen to mimic common phosphor driven color displays. The LEPD spanned the range from out-of-band devices protecting only against infrared wavelengths to those with 532-nm in-band protection, using both dielectric stack and dye technologies. Theoretical and actual performance on the color-naming task was compared using a model. This model (lighting compatibility model: LICOM) uses the spectra of the display phosphors and the spectral transmission profiles of the LEPD to predict shifts of the display color loci in CIE space. The model predictions were compared against colorimetric readings of the monitor colors through the LEPD. These predictions further were compared to actual color naming error rates. Some Euclidean distances in CIELUV uniform color space and/or numerical changes in chromaticity predicted error rates relatively well. Better results were found by fitting color naming regions to the data and testing for boundary crossings. These regions will need to be refined into non-contiguous zones for future modeling since some colors tend to disappear entirely with specific LEPD.

Paper Details

Date Published: 18 June 1999
PDF: 8 pages
Proc. SPIE 3591, Ophthalmic Technologies IX, (18 June 1999); doi: 10.1117/12.350606
Show Author Affiliations
Elmar T. Schmeisser, Air Force Research Lab. and The Analytical Sciences Corp. (United States)
Jim Dykes, Air Force Research Lab. and The Analytical Sciences Corp. (United States)
Paul Garcia, Air Force Research Lab. and The Analytical Sciences Corp. (United States)
Tom Kuyk, Veterans Medical Ctr./Birmingham (United States)

Published in SPIE Proceedings Vol. 3591:
Ophthalmic Technologies IX
Bruce E. Stuck; Pascal O. Rol; Michael Belkin M.D.; Karen Margaret Joos M.D.; Fabrice Manns; Bruce E. Stuck; Michael Belkin M.D., Editor(s)

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