Illumination – Light fiber – rod – or pipe – Illuminating or display apparatus
Reexamination Certificate
2007-02-06
2007-02-06
Tso, Laura K. (Department: 2875)
Illumination
Light fiber, rod, or pipe
Illuminating or display apparatus
C040S563000, C362S612000, C362S613000, C362S555000
Reexamination Certificate
active
11028928
ABSTRACT:
An illuminated sign having front, back and side surfaces. A plurality of first cavities are formed into the back surface of the sign. A plurality of light emitting modules are disposed in the plurality of first cavities. The modules each include a light emitting diode having an emission axis and for producing at least some light output generally parallel to the emission axis, an optical device disposed adjacent the light source having a reflective surface for reflecting the light output in directions that are generally perpendicular to the emission axis, and a guide element disposed adjacent the optical device for coupling the reflected light output into the interior of the sign. The guide element includes a second cavity formed therein in which the optical device is disposed. The front surface is illuminated by the coupled light output from the light emitting modules by reflection and/or diffusion inside the sign.
REFERENCES:
patent: 6481130 (2002-11-01), Wu
patent: 6558021 (2003-05-01), Wu
patent: 6598998 (2003-07-01), West et al.
patent: 6674096 (2004-01-01), Sommers
patent: 6761471 (2004-07-01), Wu
patent: 2006/0018122 (2006-01-01), Negley
Chung Ching Yuan
Hwang Chinmau James
Tu Chin-Wang
Wu Chen-Ho
DLA Piper (US) LLP
Leotek Electronics Corporation
Tso Laura K.
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