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. 2015 Jul 30;5:12096. doi: 10.1038/srep12096

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Shown are relative spectral intensities of several illuminations (CIE D65 standard illumination, Cree RGB LED, uniform illumination spectrum I_rel = 1) (a), optical density spectra of biological stains (b), spectral sensitivity characteristics of a Sony ICX285AL/AQ CCD sensor (c), and tristimulus functions of the CIE 1964 norm observer (d).