PURPOSE: To obtain a color holographic display capable of realizing the display of plural colors where colors easy-to-view and difficult-to-view for a viewer such as a driver do not exist, and information with the color difficult-to-view is not made more difficult-to-view by information with the color easy-to-view in the case of simultaneously viewing plural colors.
CONSTITUTION: As to the color holographic display, the light of plural colors emitted from a light emitting display means 14 is diffracted to the viewer 11 by a combiner 12 constituted of a hologram exposed to obtain diffraction efficiency in accordance with the intensity of the light of plural colors from the means 14 so that the intensity of the light of plural colors viewed by the viewer 11 may be nearly uniform.
AIZAWA YUJI
NAKAZAWA NORITO
