×

Lens array sheet surface light source, and transmission type display device

  • US 5,808,784 A
  • Filed: 09/05/1995
  • Issued: 09/15/1998
  • Est. Priority Date: 09/06/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A lens array sheet, comprising:

  • a transparent substrate having a front surface and an opposite rear surface;

    a lens array having lens elements arranged on said front surface of the substrate; and

    a cluster of a large number of minute cluster members provided on said opposite rear surface of the substrate in a random distribution, each of said minute cluster members having a length, a width, and a height dimension, each of which is in the range of a wave length of a source light for the lens array sheet to 500 μ

    m.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×