Color-rendering index device

Abstract

A color chart device for providing color standards for a plurality of colors, with less power consumption as well as reduced luminance variations in colored light within an emission surface, is provided. The color chart device includes a plurality of first light emission sections emitting colored light in wavelength ranges corresponding to the plurality of colors. The first light emission section includes: an enclosure having an emission surface; a single-color light source arranged in the enclosure to emit colored light; a reflective sheet formed on inner surfaces other than the emission surface in the enclosure; and a shielding plate arranged between the single-color light source and the emission surface so as to interrupt the colored light emitted from the single-color light source. The wavelength ranges of the colored light emitted from the first light emission sections are different from one another.

Dependencies are inferred from the claim text.