LENTICULAR LENS SHEET CAPABLE OF EFFICIENTLY REDUCING COLOR SHIFT OF LENTICULAR LENS SHEET

摘要

PURPOSE: A lenticular lens sheet is provided to efficiently reduce a color shift of the lenticular lens sheet by fully reflecting a predetermined part of a red color and a blue color. CONSTITUTION: A lenticular lens sheet(4) is used at a rear projection screen for ejecting light of an image source from a back side to an observer. The lenticular lens sheet(4) includes a plurality of incident lens elements aligned at a light incident side and a plurality of ejection lens elements aligned at a light ejection side. The light passing through each incident lens element passes through a convex point of each ejection lens corresponding to the incident lens element. The lenticular lens sheet(4) vertically and horizontally disperses an image light ejected from a fresnel lens sheet(3) with a predetermined angle.