By color change on the basis of the control of the spectral reflection characteristics of the spectral distribution characteristic and the coloring material of illumination, efficient usage of the illumination light as well as illumination system utilizing the method,

摘要

PROBLEM TO BE SOLVED: To provide an efficient utilization method for illumination light by color change based on control of spectral distribution characteristics of illumination and spectral reflection characteristics of a color material, capable of achieving efficient utilization of illumination light, and of suppressing color change of a general color material in which a spectral reflective index changes gently.;SOLUTION: In an efficient utilization method for illumination light, preparations are preliminarily performed so that spectral distribution characteristics A of illumination and spectral reflection characteristics B of a color material respectively have comb teeth shapes similar to each other when a horizontal axis indicates a wavelength and a vertical axis indicates a spectrum intensity or a spectral reflective index. A phase difference between the spectral distribution characteristics A of illumination and the spectral reflection characteristics B of the color material is controlled to control stimulus values of human eyes to respective RGB sensors, calculated by multiplying a product of the spectral distribution characteristics A of illumination and the spectral reflection characteristics B of the color material by a spectral sensitivity of a sensor responsible for color sense of human eyes. By changing a mixture ratio of the three RGB stimulus values respectively controlled in such the way, color reflected on the human eyes is changed.;COPYRIGHT: (C)2014,JPO&INPIT