Planar light source and planar lighting apparatus

Details Planar light source and planar lighting apparatus Planar light source and planar lighting apparatus

2006-03-06

2008-09-09

Ward, John A. (Department: 2885)

Illumination

Light modifier

Refractor

C362S326000, C362S332000, C362S333000, C362S331000

Reexamination Certificate

active

07422347

ABSTRACT:
A planar light source comprises at least one point light source disposed on a supporting substrate, and a cylindrical lens that covers the light emitting observation side of the point light source, wherein the cylindrical lens has a concave lens function in the direction (y direction) perpendicular to the supporting substrate, and has a convex lens function in at least part of the horizontal direction (x direction).

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