general expression for the effect of an illuminant on the color appearance of objects in conscious or subconscious comparison with their color appearance under a reference illuminant 某物体在某发光体照射下的颜色效果与该物体在标准发光体下的颜色效果进行比较后所得到的评价。
measure of the degree to which the psycho-physical colors of objects illuminated by the source conform to those of the same objects illuminated by a reference illuminant for specified conditions 表征在特定条件下,经某光源照射的物体所产生的心理感官颜色与该物体在标准光源照射下的心理颜色相符合的程度的参数。