Light emitting diode

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With housing or contact structure

Reexamination Certificate

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Details

C257S100000, C257S101000, C257S102000, C257S678000

Reexamination Certificate

active

06943379

ABSTRACT:
In a light emitting diode, a blue light emitting element is mounted on a base having a cup through a phosphor-containing mount so that the light emitting element is located within the cup and is mounted on the bottom of the cup through the phosphor-containing mount. The light emitting diode includes a light emitting element and a p electrode. By virtue of the above construction, blue light emitted from the light emitting element can be reflected from the lower surface of the p electrode without being radiated directly from the upper surface of the light emitting element to the outside of the light emitting diode. As a result, the blue light emitted from the light emitting element can be efficiently mixed with yellow light given off from the phosphor in the phosphor-containing mount to provide white light which is radiated to the outside of the light emitting diode with high efficiency. The white light can be perceived by a viewer to be uniformly radiated from the light radiating surface of the light emitting diode.

REFERENCES:
patent: 6469322 (2002-10-01), Srivastava et al.
patent: 6509651 (2003-01-01), Matsubara et al.
patent: 2001/0002049 (2001-05-01), Reeh et al.
patent: 2001/0024087 (2001-09-01), Suehiro et al.
patent: 2003/0160259 (2003-08-01), Uemura
patent: 2947344 (1999-07-01), None
patent: 2001-217466 (2001-08-01), None

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