Multiple panel troffer-style fixture
First Claim
Patent Images
1. A light fixture, comprising:
- a plurality of lighting panels in a light fixture opening, each of said lighting panels emitting a substantially uniform light across its emission surface and emitting in substantially the same direction; and
a power distribution system, each of said panels connected to said power distribution system, said power distribution system comprising a fixture printed circuit board (PCB) that extends along a central spine of said light fixture.
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Abstract
Lighting fixtures are described utilizing a plurality of light sources, or light engines, which are mounted together in a modular fashion in the light fixture opening. In some embodiments, the plurality of light sources can comprise lighting panels that together form the overall fixture light source. The present invention is particularly applicable to troffer-style lighting fixtures that can be arranged with a plurality of lighting panels arranged in the troffer opening to illuminate the space below the troffer. Embodiments of the present invention can also utilize solid state light sources for the lighting panels, with some embodiments utilizing light emitting diodes (LEDs).
191 Citations
48 Claims
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1. A light fixture, comprising:
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a plurality of lighting panels in a light fixture opening, each of said lighting panels emitting a substantially uniform light across its emission surface and emitting in substantially the same direction; and a power distribution system, each of said panels connected to said power distribution system, said power distribution system comprising a fixture printed circuit board (PCB) that extends along a central spine of said light fixture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A troffer-style lighting fixture, comprising:
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a plurality of lighting panels, each of said lighting panels comprising a solid state light source; a frame, said lighting panels mounted to said frame; a source of electrical power, each of said lighting panels electrically connected to said source of electrical power to cause said solid state light source to emit light; a power spine comprising a fixture printed circuit board (PCB) running down the center of said frame, said power spine comprising connectors to receive each of said light panels and to provide an electrical connection between said source of electrical power and each of said light panels. - View Dependent Claims (29, 30, 31, 32)
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33. A light fixture, comprising:
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a plurality of lighting panels having a plurality of solid state light sources, said plurality of lighting panels emitting light out a light fixture opening; an AC/DC converter providing a first DC signal along a central spine of said light fixture to each of said plurality of lighting panels; and a plurality of DC/DC converters, each of which is on a respective one of said lighting panels and providing a second DC signal to said solid state light sources. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A lighting fixture lighting panel, comprising:
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a waveguide for confining LED light between its opposing planar surfaces, one of said planar surfaces being a panel emission surface; an array of light emitting diodes (LEDs) mounted to an LED printed circuit board (PCB) on at least one edge of said waveguide and emitting light into said waveguide; planar interruptions at different areas of said panel emission surface, wherein said planar interruptions provide a uniform emission pattern from the panel; and a DC/DC converter on said LED PCB to provide an electrical signal for driving said array of LEDs, wherein said LED PCB comprises conductors configured such that said LED PCB can be plugged into connectors on an external structure to secure said panel to said external structure and provide an electrical connection. - View Dependent Claims (45, 46, 47, 48)
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Specification