Light guiding plate made of transparent resin,...

Details Light guiding plate made of transparent resin,... Light guiding plate made of transparent resin,...

2006-02-27

2009-11-10

Kim, Ellen (Department: 2874)

Optical waveguides

Noncyclindrical or nonplanar shaped waveguide

C362S311040, C362S317000, C264S001700

Reexamination Certificate

active

07616858

ABSTRACT:
A light guiding plate is made of a transparent thermoplastic resin and has a first main surface, a second main surface opposed to said first main surface, a first side wall, a second side wall, a third side wall opposed to said first side wall and a fourth side wall opposed to said second side wall. The surface portion of the first main surface is provided with convex portions and/or concave portions, and the light guiding plate has a longitudinal-direction length, which is a length from the first side wall to the third side wall, of 40 mm or more but 130 mm or less, at least 80% region of the light guiding plate has a thickness of 0.1 mm or more but 0.55 mm or less.

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