Optical waveguide plate of surface light emitting apparatus

Details Optical waveguide plate of surface light emitting apparatus Optical waveguide plate of surface light emitting apparatus

2005-06-07

2005-06-07

Lee, John R. (Department: 2881)

Optical waveguides

Noncyclindrical or nonplanar shaped waveguide

C385S147000, C385S901000, C385S031000

Reexamination Certificate

active

06904225

ABSTRACT:
An optical waveguide for emitting light of uniform intensity distributed over the light emitting surface so as to suppress the occurrences of bright lines includes an optical waveguide and surface light emitting apparatus that has a light emitting plane and a reflecting plane that oppose each other. The reflecting surface has a plurality of dots formed thereon so that light entering from the light source, provided on one end face or two opposing end faces, is output through the light emitting surface with uniform intensity, wherein the dots are arranged so as to form band regions each being defined as a region that has a constant density of distribution. A plurality of vertical lines of the dots are formed at substantially equal intervals in each of the band regions in the direction toward adjacent bands, and the interval between the vertical lines of dots is made different in different bands.

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