20010049893-A1 is referenced by 3 patents.

A luminaire comprises a relatively thin and flat light-emitting panel (1) having a light-emitting window (2) and, opposite said light-emitting window, a rear wall (3) with opposed edge surfaces (4, 14). At least one of the edge surfaces (4) is light transmitting and associated with a plurality of light sources (5, 5, 5, . . . ). Light originating from the light sources (5, 5, 5, . . . ) is spread in the panel (1). The invention is characterized in that a plurality of deformities (7, 7, 7, . . . ; 8, 8, . . . ) is provided in the panel (1) for extracting light from the panel (1) via the light emission window (2). The deformities (7, 7, 7, . . . ; 8, 8, . . . ) are clustered so as to form at least one light symbol (27; 28). The configuration of the clusters (17; 18) of deformities (7, 7, 7, . . . ; 8, 8, . . . ) corresponds to the shape of the light symbol (27; 28). Preferably, the luminaire has a first and a second light-transmitting edge surface, with respectively, a first and a second plurality of light sources being associated with said surfaces. A first cluster of deformities only couples light from the first light source out of the panel, thereby forming a first light symbol, while a second cluster of deformities only couples light from the second light source out of the panel, thereby forming a second light symbol, independently of the formation of the first light symbol. The luminaire according to the invention provides independent lighting and coloring possibilities of light symbols in a single-panel luminaire.

Title
Luminaire and light-emitting panel
Application Number
9/754636
Publication Number
20010049893
Application Date
January 4, 2001
Publication Date
December 13, 2001
Inventor
Edwin Van Lier
Constance J E Saalberg Seppen
Jelle Hilbrand Schuurmans
Theodorus Mattheus Maria Maas
Agent
c o US PHILIPS CORPORATION
NY, US
Agent
Jack E Haken
NY, US
IPC
F21S 04/00
G09F 13/22
F21V 07/04
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