Color shifts in a phosphor display with laser eye protection: LICOM 1

Elmar T. Schmeisser; Jim Dykes; Paul Garcia; Tom Kuyk

doi:10.1117/12.350606

18 June 1999 Color shifts in a phosphor display with laser eye protection: LICOM 1

Elmar T. Schmeisser, Jim Dykes, Paul Garcia, Tom Kuyk

Proceedings Volume 3591, Ophthalmic Technologies IX; (1999) https://doi.org/10.1117/12.350606
Event: BiOS '99 International Biomedical Optics Symposium, 1999, San Jose, CA, United States

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.

Citation Download Citation

Elmar T. Schmeisser, Jim Dykes, Paul Garcia, and Tom Kuyk "Color shifts in a phosphor display with laser eye protection: LICOM 1", Proc. SPIE 3591, Ophthalmic Technologies IX, (18 June 1999); https://doi.org/10.1117/12.350606

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