Optical wave guide

Details Optical wave guide Optical wave guide

2005-11-22

2005-11-22

Husar, Stephen (Department: 2875)

Illumination

Edge lighted panel

Particular application

C362S626000, C362S559000, C362S812000

Reexamination Certificate

active

06966684

ABSTRACT:
A lighting apparatus (10) includes a wave guide (14) formed from a translucent material. The wave guide has a top surface (30), a bottom surface (32) that has a pre-defined curvature, and at least one side surface (34) that receives light (40) injected therein. A plurality of microstructures (36) is arranged on selected areas of the bottom surface (32) of the wave guide (14). The plurality of microstructures (36) cooperates with the pre-defined curvature of the bottom surface (32) to scatter at least a portion of the light (40) injected into the at least one side surface (34). The scattered light (42) exits the wave guide (14) through the top surface (30). At least one light emitting diode (16) injects light (40) into the at least one side surface (34) of the wave guide (14). The scattered light (42) that exits the wave guide (14) forms at least one symbol viewable by an associated observer.

REFERENCES:
patent: 4965950 (1990-10-01), Yamada
patent: 5027258 (1991-06-01), Schoniger et al.
patent: 5050946 (1991-09-01), Hathaway et al.
patent: 5375043 (1994-12-01), Tokunaga
patent: 5414599 (1995-05-01), Kaneko et al.
patent: 5418384 (1995-05-01), Yamana et al.
patent: 5433024 (1995-07-01), Lerner
patent: 5555160 (1996-09-01), Tawara et al.
patent: 5575549 (1996-11-01), Ishikawa et al.
patent: 5590945 (1997-01-01), Simms
patent: 5640792 (1997-06-01), Smith et al.
patent: 5664873 (1997-09-01), Kanda et al.
patent: 5842297 (1998-12-01), Tung
patent: 5857761 (1999-01-01), Abe et al.
patent: 5890790 (1999-04-01), Osawa
patent: 6134092 (2000-10-01), Pelka et al.
patent: 6164791 (2000-12-01), Gwo-Juh et al.
patent: 6305109 (2001-10-01), Lee
patent: 6443582 (2002-09-01), Tarne et al.
patent: 6464366 (2002-10-01), Lin et al.
patent: 6473554 (2002-10-01), Pelka et al.
patent: 2001/0049893 (2001-12-01), Maas et al.
patent: 411353920 (1999-12-01), None

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