Patent Document ID: 5559604
Application ID: 08313470
Patent Flag: 1

Claim One:
1. A color matching apparatus for reproducing visually the same color under different illuminants, said apparatus comprising: a spectralphotometer for detecting the color temperature of an observational illuminant; and a transforming means for transforming colorimetric values of a target color under a predetermined first illuminant into color separation values for a reproduced color which under said observational illuminant visually appears the same as said target color under said first illuminant, said transforming means storing the relationship between the colorimetric values of said target color and corresponding color separation values under a plurality of second illuminants having given color temperatures, said corresponding color separation values determined so as to visually reproduce with a colorant at each of said second illuminants the same color as said target color under said first illuminant, into which transforming means the color temperature detected by said spectralphotometer and the colorimetric values of said target color under said first illuminant are inputted, and from which transforming means the color separation values of said reproduced color under the observational illuminant are outputted into a color output device.