抄録
This study examined the relationships among illuminance level, light source spectral distribution and observation sample colors by subjectively evaluating color samples under various illuminations. It also clarified the evaluation structure when impression of color samples under various illuminations were sujectively observed. Four types of lamps (Ra19-Ra96), two illumination levels (700 lx, 10 lx), and three types of samples (two-color ones, multi-color arrays, pictures) were used. The results were found to depend on whether the sample contained red. Factor analysis with “color quality” and “preference” as factors revealed that subjective brightness and vividness of the red were important in forming a subjective impression of the samples.
