SCREEN FOR IMAGE PROJECTION AND THREE-DIMENSIONAL IMAGE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a screen for image projection capable of displaying a high-precision three-dimensional body image with full of presence without spoiling a feeling as if it is floating in the air.

SOLUTION: The screen for image projection includes: a lenticular lens array 10 in which a plurality of semi-cylindrical lenses are arranged side-by-side; a planar substrate 11 which is stuck on a planar side of the lenticular lens array 10, transparent in a visible region, and has rigidity; a light scattering layer 13 for scattering visible light with a structure in which a plurality of transparent layers including prescribed thicknesses in the visible region with the refractive indexes different from each other are laminated; and a transparent spacer substrate 12 which is disposed between a lens surface side of the lenticular lens array 10 and the light scattering layer to maintain a gap of a length the same as a focal length of the lenticular lens array 10 and which is formed so that a refractive index in a region 12b corresponding to a valley part of the lens surface of the lenticular lens array 10 is smaller than that of a region 12a corresponding to a convex part of the lens surface.

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