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von Kries' persistence law
empirical law stating that colour stimuli that match in one set of adaptation conditions continue to do so in any other set
Note 1 to entry: Von 'Kries' persistence law does not apply to all conditions.
Note 2 to entry: This entry was numbered 845-03-18 in IEC 60050-845:1987.
Note 3 to entry: This entry was numbered 17-1422 in CIE S 017:2011.