Colored lighting device
First Claim
1. A lighting device for generating mixed colors, which device 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 accommodating a light source, and each cavity having an upper side facing the light emission surface and side walls, said upper side being coated with a first reflecting layer, while the coupling of the light into the optical waveguide plate takes place through the side walls.
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Accused Products
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.
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Citations
20 Claims
- 1. A lighting device for generating mixed colors, which device 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 accommodating a light source, and each cavity having an upper side facing the light emission surface and side walls, said upper side being coated with a first reflecting layer, while the coupling of the light into the optical waveguide plate takes place through the side walls.
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13. A lighting device, comprising:
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a housing; a plurality of light sources of different colors; and an optical waveguide plate disposed within the housing, the optics waveguide plate having a light emission surface, wherein a plurality of cavities are defined within the optical waveguide plate, each cavity accommodating one of the light sources, each cavity having an upper side facing the light emission surface and side walls, said upper side being coated with a first reflecting layer, wherein the coupling of the light into the optical waveguide plate takes place through the side walls, and wherein the optical waveguide mixes the colors of the light sources to output a mixed color light through the light emission surface. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification