VEHICULAR HOLOGRAPHIC DISPLAY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a vehicular holographic display system which does not generate the flare light and whose visual area is wide and which doed not cause longitudinal directional contraction of an image and image distortion. SOLUTION: The information containing light 3 irradiated at an incident angleθi to a hologram 2 arranged in a dark color concealing part 11 of windshield glass 7 through a prism 30 from an information display source having a display body 5 having an inclination to the optical axis, is diffracted at an angleθd (≠θi) of diffraction by the hologram 2, and a display image 10 is visually confirmed by an observer.