SCREEN FOR IMAGE LIGHT PROJECTION AND DISPLAY SYSTEM

摘要

A screen (10) for image light projection is provided with a plurality of non-periodic lens array units (11) two-dimensionally arranged regularly and without gaps at least within an image display region (13) on a main surface (12). Each of the non-periodic lens array units (11) includes four or more vertices of spherical surface shaped microlenses arranged without gaps and non-periodically, and has symmetry that maintains continuity of curved surface shape in the microlenses positioned at boundary parts.