Light emitting device

Details Light emitting device Light emitting device

2007-06-28

2011-11-08

Wilson, Allan R (Department: 2815)

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

With reflector, opaque mask, or optical element integral...

C257S100000, C257SE33061

Reexamination Certificate

active

08053798

ABSTRACT:
The present invention provides a light emitting device which comprises a blue light emitting diode, and at least an orthosilicate based phosphor for emitting light ranging from a green to yellow regions and a nitride or oxynitride based phosphor for emitting light in a red region over the light emitting diode. Accordingly, since white light with a continuous spectrum ranging from green to red can be implemented, a light emitting device with improved color rendering can be provided, and the light emitting device can be used for a general illumination or a flash. Further, since the phosphors having stable chemical characteristics against their external environment such as moisture are employed, the stability in optical characteristics of the light emitting device can also be improved.

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