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Optical waveguide plate of surface light emitting apparatus

  • US 20020197051A1
  • Filed: 05/21/2002
  • Published: 12/26/2002
  • Est. Priority Date: 05/22/2001
  • Status: Active Grant
First Claim
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1. An optical waveguide plate of a surface light emitting apparatus comprising a light emitting plane and a reflecting plane that oppose each other, said reflecting surface having a plurality of dots so that a light inputted from a light source that is provided on one end face or two opposing end faces is output through said light emitting surface with uniform intensity, wherein said dots are arranged so as to form a plurality of band regions each of which is defined as a region that has a constant distribution density, said each band region having a plurality of vertical lines which are formed by the dots and are formed at substantially equal intervals in the direction toward adjacent band regions, said intervals between the vertical lines of dots is set so as to be different between the adjacent band regions.

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