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Lens array sheet and transmission screen and rear projection type display

  • US 7,054,068 B2
  • Filed: 12/03/2002
  • Issued: 05/30/2006
  • Est. Priority Date: 12/03/2001
  • Status: Expired due to Fees
First Claim
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1. A lens array sheet, comprising:

  • a lens array layer;

    the lens array layer being formed by a unified lens layer having a first lens array and a second lens array;

    the first and second lens arrays being formed by disposing a plurality of half-columnar cylindrical lenses in parallel on a common plane;

    a longitudinal direction of the half-columnar cylindrical lens in the first lens array and a longitudinal direction of the half-columnar cylindrical lens in the second lens array crossing each other orthogonally on a common plane;

    a plurality of the half-columnar cylindrical lenses being disposed in parallel with intervals therebetween in either one of the first or second lens arrays;

    at least the first lens array or the second lens array having a group of a plurality of the half-columnar cylindrical lenses which are disposed without intervals therebetween; and

    the group of cylindrical lenses being disposed in parallel.

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