COLORING MEMBER FOR LIGHT CONTROLLING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a coloring member for a light controlling material having excellent stability in a colored state, wherein deterioration due to irradiation with UV is not caused and temperature dependence is eliminated in principle. SOLUTION: The coloring member for the light controlling material includes a colored layer 2 and a light controlling layer 4, wherein the colored layer 2 contains an diarylethene-based photochromic compound and is repetitively colored and faded according to the degree of irradiation with light and the light controlling layer 4 is provided on the light irradiation side of the colored layer 2 and has a function of controlling incidence of light having a wavelength which is unnecessary for coloring and fading color among the light made incident in the colored layer 2. COPYRIGHT: (C)2006,JPO&NCIPI