Directional reflection screen and projection display

摘要

A directional reflection screen includes a corrugated mirror sheet constituted by a plurality of mirrors, and a lens sheet for diffusing and reflecting rays of light in the direction of ridge lines of the corrugated mirror sheet. The ridge lines of the corrugated mirror sheet intersect the lens lines of said lens sheet at angles other than 90. degree.. The projection display further includes projection means for projecting an image onto the directional reflection screen.