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US 7,682,053 B2Granted
Light-emitting device with a long lifespan
OwnerYu-Nung Sheninventor
Life of this patent
Estimating the term…
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.
Claims12
A light-emitting device, comprising:
- a housing including complementary first and second housing parts that cooperatively define an accommodating space therebetween;
- a light-emitting unit disposed in said accommodating space in said housing, and including a light-emitting chip that has a plurality of conductive contacts;
- a plurality of leads, each of which extends into said accommodating space in said housing and is coupled electrically to a respective one of said conductive contacts of said light-emitting chip of said light-emitting unit;
- and
- a cup-shaped reflector disposed in said accommodating space in said housing and mounted on said first housing part for reflecting light emitted from said light-emitting chip of said light-emitting unit toward said second housing part, said cup-shaped reflector including:
- a base wall that is formed with a plurality of holes therethrough;
- and
- a surrounding wall that diverges from said base wall thereof and that surrounds said light-emitting unit.
5 more elements
Dependencies are inferred from the claim text.