Light emitting diode

Details Light emitting diode Light emitting diode

2008-09-30

2010-06-01

Luu, Chuong A. (Department: 2892)

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

Incoherent light emitter structure

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

C257S100000, C257S099000, C257S102000

Reexamination Certificate

active

07728344

ABSTRACT:
A light emitting diode includes a reflective cup, an LED chip, and many electrodes, a first light scattering layer, and a phosphor layer. The reflective cup includes a bottom and a sidewall extending from the bottom. The LED chip is received in the reflective cup and mounted on the bottom thereof for emitting first light of a first wavelength. The electrodes each has a first end electrically connected to the LED chip and an opposite second end exposed at an outer surface of the reflective cup. The first light scattering layer formed in the reflective cup on the bottom thereof and covering the LED chip, which has a concave surface at an opposite side thereof to the LED chip. The phosphor layer formed on the concave surface of the light scattering layer for converting part of the first light into second light of a second wavelength.

REFERENCES:
patent: 6310364 (2001-10-01), Uemura
patent: 6340824 (2002-01-01), Komoto et al.
patent: 6593598 (2003-07-01), Ishinaga
patent: 6717355 (2004-04-01), Takahashi et al.
patent: 6835958 (2004-12-01), Uemura
patent: 7026663 (2006-04-01), Krames et al.

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