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US 7,922,360 B2Granted
Thermal transfer in solid state light emitting apparatus and methods of manufacturing
AssigneeCree, Inc.
InventorsRussell George Villard, Robert Edward Higley
Life of this patent
Estimating the term…
Abstract
Provided are light emitting apparatus including a solid state light emitting element having a first side and a second side, the solid state light emitting element configured to emit light from the first side. Such apparatus further include an elongated thermally conductive element positioned to conduct thermal energy from the second side of the solid state light emitting element.
Claims15
A light emitting apparatus mounted in a housing, comprising:
- a substrate having a first side and second side;
- a plurality of solid state light emitting elements mounted on the first side of the substrate;
- a plurality of columnar thermally conductive elements that extend from the second side of the substrate, each having a proximal end that is proximate the plurality of solid state lighting elements and a distal end that is configured to thermally engage the housing in which the light emitting apparatus is mounted, wherein the housing is configured to dissipate thermal energy that is conducted from the plurality of solid state light emitting elements via the plurality of thermally conductive elements.
A method of assembling a light emitting apparatus comprising:
- mounting a solid state light emitting element on a substrate by attaching a first side of the solid state light emitting element to a first side of the substrate, the solid state light emitting element configured to emit light from a second side;
- and
- attaching a proximal end surface of a substantially columnar portion of an elongated thermally conductive element to a second side of the substrate corresponding to a central region of the solid state light emitting element, such that a portion of heat generated by the solid state light emitting element is transferred through the substrate to the proximal end of the elongated thermally conductive element,
- wherein the elongated thermally conductive element comprises a plurality of distal ends configured to dissipate thermal energy.
1 more element
A light emitting apparatus, comprising:
- a solid state light emitting element having a first side and a second side, the solid state light emitting element configured to emit light from the first side;
- a substrate having a first side configured to receive the second side of the solid state light emitting element;
- an elongated thermally conductive element configured to extend beyond a second side of the substrate and having a proximal end positioned to conduct thermal energy from the second side of the solid state light emitting element;
- and
- a thermal dissipation component including a housing component in which the light emitting apparatus is mounted and that is conductively coupled to a distal end of the elongated thermally conductive element.
2 more elements
A light emitting apparatus mounted in a housing, comprising:
- a substrate having a first side and second side;
- a plurality of solid state light emitting elements mounted on the first side of the substrate;
- and
- a plurality of non-hollow thermally conductive rods extending from the second side of the substrate, each of the plurality of non-hollow thermally conductive rods having a proximal end that is proximate the plurality of solid state lighting elements,
- wherein each of the plurality of non-hollow thermally conductive rods comprises a plurality of distal ends that are configured to dissipate heat from the plurality of solid state light emitting elements via the corresponding one of the plurality of non-hollow thermally conductive rods.
2 more elements
Dependencies are inferred from the claim text.