Colored lighting device

Details Colored lighting device Colored lighting device

2006-06-20

2006-06-20

Quach-Lee, Y. My (Department: 2875)

Illumination

Illuminated scale or dial

Internal light source

C362S027000

Reexamination Certificate

active

07063430

ABSTRACT:
A lighting device for generating mixed colors comprises a light emission surface and a plurality of light sources of different colors, including an optical waveguide plate into which a plurality of cavities is provided. Each cavity accommodates a light source and has an upper side and side walls. The upper side faces the light emission surface and is coated with a first reflecting layer. The coupling of light into the optical waveguide plate takes place through the side walls.

REFERENCES:
patent: 2945313 (1960-07-01), Hardesty
patent: 2948073 (1960-08-01), Roper
patent: 3077535 (1963-02-01), Dupree
patent: 4998804 (1991-03-01), Horiuchi
patent: 5115379 (1992-05-01), Nagai
patent: 5537300 (1996-07-01), Kraines et al.
patent: 6404131 (2002-06-01), Kawano et al.
patent: 0921568 (1999-06-01), None

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