04-4
Chapter One
TRANSLATION OF CIE 1931
RESOLUTIONS ON COLORIMETRY
DECISION 1
It is recommended that in order to obtain a normalized basis to specify colorimetric
quantities, regarding its technical and commercial applications, these quantities
shall be expressed in relation to a hypothetic observer to be called CIE 1931 reference
observer and characterized by its visibility curve, which is the normalized
curve adopted by the CIE. For this observer, there shall be a chromatic equivalence
between the monochromatic stimulus defined by the wavelength indicated in the
fourth column of Table 1.1, and the mixture of three monochromatic stimuli of
the following wavelengths: 700.0 nm, 546.1 nm, and 435.8 nm, in the proportions
listed in columns 1, 2, and 3 of Table 1.1.
In Table 1.1, the units, in which r, g, and b are expressed, are chosen so that the
equal quantity mixture of these three monochromatic stimuli shall be chromatically
equivalent to a specific nonmonochromatic stimulus for which the total radiant
energy of all wavelengths in a range of two extreme wavelengths situated in the
visible spectrum is ... read full excerpt from Colorimetry: Understanding the CIE System ebook
