Patent ID: 6101031
Filing Date: 2000-08-08
Classification: G03B

Abstract:
A double-sided lenticular lens sheet having an incident side lenticular lens on its light beam incident side surface and further having an emergent side lenticular lens on its emergent side surface, with peak portions of said emergent side lenticular lens being formed at substantially convergent positions of said incident side lenticular lens, wherein, in terms of inter-lens distances being distances between peak portions of said incident side lenticular lens and said peak portions of said emergent side lenticular lens, when said inter-lens distance of a central portion of a viewable area of a rear-projection screen composed of said lenticular lens sheet is taken to be t.sub.0 and said inter-lens distance of an end portion of said viewable area thereof is taken as t.sub.1, the rate of said inter-lens distances t.sub.0 to t.sub.1, is determined to satisfy the following condition:0.98.ltoreq.t.sub.1 /t.sub.0 .ltoreq.1.10wherein t.sub.1 does not equal t.sub.0.