LIGHT ENVIRONMENT EVALUATION METHOD AND LIGHT ENVIRONMENT EVALUATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To solve the problem that there is yet no method capable of easily evaluating an actual light environment.

SOLUTION: The light environment including a plurality of light sources to be evaluated is photographed by relative spectral sensitivity and melatonin secretion suppression sensitivity to acquire photographed images of respective sensitivities. In the photographed images of the respective sensitivities, light source regions of the respective light sources are extracted and pixel values of pixels within the light source regions of the respective light sources are multiplied to calculate a brightness amount under the relative spectral sensitivity related to the respective light sources and a melatonin secretion suppressive component amount under the melatonin secretion suppression sensitivity, light properties of the respective light sources are estimated on the basis of the brightness amount and the melatonin secretion suppressive component amount, and the light environment is evaluated on the basis of the estimation.

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