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US 8,541,933 B2Granted
Transparent thermally conductive polymer composites for light source thermal management
AssigneeGE Lighting Solutions, LLC
InventorsAshfaqul Islam Chowdhury, Gary Allen
Life of this patent
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Abstract
A light emitting apparatus is provided. The light emitting apparatus includes a light transmissive envelope, a light source being in thermal communication with a heat sink, and a plurality of heat fins in thermal communication with the heat sink and extending in a direction such that the heat fins are adjacent the light transmissive envelope. The plurality of heat fins comprises a carbon nanotube filled polymer composite.
Claims11
A light emitting apparatus comprising:
- a light transmissive envelope;
- a light source being in thermal communication with a heat sink;
- a plurality of heat fins in thermal communication with said heat sink and extending in a direction such that the heat fins are adjacent to said light transmissive envelope, wherein said plurality of heat fins comprises a carbon nanotube filled polymer composite;
- and
- wherein said apparatus has a longitudinal axis dissecting said envelope and said heat sink, and wherein said heat sink has a light blocking angle of less than 30° as measured from said longitudinal axis at a point of exit from said heat sink.
2 more elements
Dependencies are inferred from the claim text.