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Match prediction of highly fluorescent colors
Author(s) -
Simon Frederick T.,
Funk Robert A.,
Laidlaw Ann Campbell
Publication year - 1994
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.5080190606
Subject(s) - standard illuminant , radiance , fluorescence , spectral power distribution , monochromator , biological system , absorption (acoustics) , optics , chemistry , materials science , physics , wavelength , biology
Color formulation of fluorescent materials is not feasible with the usual methods used for nonfluorescent colors. Realizing the need for certain textiles that are dyed with fluorescent colorants, a technique was developed based on using certain dual‐monochromator measurements of the spectra of fluorescent colorants. to accomplish this formulation, a new spectral quantity independent of illuminant was developed for all fluorescent colorants. This is termed RELEX, which describes the relative excitation of the colorant. When this quantity is weighted by the spectral power distribution for a specific illuminant and factored for absorption by all ingredients in a mixture of colorants, the proper fluorescent emission is obtained, which can be added to the spectral reflected radiance factor, β s , for that mixture. Consequently, match prediction can be done for spectral radiance factor, β T , curves of fluorescent materials using an iterative estimation algorithm.