The Convergence of the Tritanopic Confusion Loci and the Derivation of the Fundamental Response Functions

The color matching characteristics for tritanopia reported recently by one of us (W.D.W.) have been used to make a new determination of the tritanopic confusion loci. These loci cut the spectrum locus twice, once in the yellow-green and once in the blue and violet, and their point of convergence has been located in the chromaticity chart for a modified C.I.E. observer. Using two other stimuli similar in position to the “red” and “green” fundamental stimuli found by Pitt and Walters, new fundamental response curves have been calculated.