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US 2014/0153233 A1Published application
Solid state lighting device
AssigneeCree, Inc.
InventorsPaul Kenneth Pickard, Nicholas W. Medendorp, JR., Michael James Harris, James Michael Lay
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Abstract
A lighting device is disclosed comprising a plurality of light emitters and a heat spreader plate thermally coupled to the plurality of light emitters, wherein the plurality of solid state emitters provides a thermal load upon application of an operating current and voltage, the heat spreader plate dissipating substantially all of the thermal load to an ambient air environment.
Claims32
1-39. (canceled)
A solid state lighting device comprising:
- a plurality of solid state emitters;
- and
- a heat spreader plate of thermally conductive material having a base in thermal communication with the plurality of solid state emitters,
- at least one sidewall projecting from the base, the at least one sidewall thermally coupled to the heat spreader plate;
- and
- at least one of a substantially non-metallic housing, a substantially non-metallic trim element, and a substantially non-metallic reflector.
3 more elements
A solid state lighting device comprising:
- a plurality of solid state emitters;
- a metallic heat spreader plate having a base in thermal communication with the plurality of solid state emitters,
- at least one sidewall projecting in a direction non-parallel from the longitudinal axis of the base;
- and
- at least one of a substantially non-metallic housing, a substantially non-metallic trim element, and substantially non-metallic reflector;
- wherein the ratio of thermal conductivity of the heat spreader plate and the housing and/or the trim element and/or the reflector is between about 10:1 to about 1000:1.
3 more elements
A solid state lighting device comprising:
- a plurality of solid state emitters;
- and
- a heat spreader plate in thermal communication with the plurality of solid state emitters, the heat spreader having a base and at least one sidewall portion projecting substantially non-parallel from the longitudinal axis of the base, and
- at least one of a substantially non-metallic housing coupled to at least a portion of the heat spreader plate, a substantially non-metallic trim element, and substantially non-metallic reflector, and
- a thermal path between the heat spreader plate and the ambient.
2 more elements
Dependencies are inferred from the claim text.