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US 2010/0133973 A1Published application
Light-emitting device with a long lifespan
OwnerYu-Nung Sheninventor
Life of this patent
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Abstract
A light-emitting device includes a housing, a light-emitting unit, a cup-shaped reflector, and a plurality of leads. The light-emitting unit is disposed in the housing. The cup-shaped reflector is disposed in the housing, and includes a base wall that is formed with a plurality of holes therethrough, and a surrounding wall that diverges from the base wall thereof and that surrounds the light-emitting unit. Each of the leads extends into the housing and is coupled electrically to the light-emitting unit.
Claims11
A light-emitting device, comprising:
- first and second light-transmissible substrates cooperatively defining an accommodating space;
- a plurality of electrical contacts disposed in said accommodating space;
- a light-emitting unit disposed in said accommodating space, and including a light-emitting chip that has a plurality of conductive contacts, each of which is coupled electrically to a respective one of said electrical contacts;
- a coupling unit coupled electrically to said electrical contacts and adapted to be coupled electrically to a power source;
- and
- a heat-dissipating unit including a thermally conductive element, said thermally conductive element having a first end portion that is disposed in said accommodating space, and a second end portion that extends externally of said accommodating space.
3 more elements
Dependencies are inferred from the claim text.