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US 8,476,812 B2Granted
Solid state lighting device with improved heatsink
AssigneeCree, Inc.
InventorsWai Kwan Chan, Derek Ian Darley, Antony Paul Van De Ven, Gerald H. Negley
Life of this patent
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AssigneeCree, Inc.
InventorsWai Kwan Chan, Derek Ian Darley, Antony Paul Van De Ven, Gerald H. Negley
Estimating the term…
A solid state lighting device includes at least one emitter and a forged heatsink arranged to receive and dissipate heat generated by emitter(s). The heatsink may have a thickness and/or profile that varies in at least two dimensions. Fabrication of a solid state lighting device may include providing a forged heatsink, and mounting at least one solid state emitter in thermal communication with the heatsink. A space or object may be illuminated with a lighting device including at least one solid state emitter and a forged heatsink. The lighting device may be operated responsive to at least one sensor arranged to sense temperature and/or at least one characteristic of light emitted by the emitter(s).
A lighting device comprising a light bulb including:
A heatsink adapted for use with a solid state light bulb to dissipate heat emanating from at least one solid state emitter, the heatsink comprising an impression die-forged body having a thickness and/or profile that varies in at least two dimensions, wherein at least a portion of the heatsink is arranged to be exposed along an exterior surface of the solid state light bulb, at least a portion of the heatsink comprises a cavity arranged to receive the at least one solid state emitter and to receive at least a portion of at least one solid state emitter drive control component providing at least one of ballast utility, color control utility, and dimming utility, and at least a portion of the cavity of the heatsink comprises a substantially frustoconical shape.
Dependencies are inferred from the claim text.