Light emitting diode and light emitting diode array having unifo

Details Light emitting diode and light emitting diode array having unifo Light emitting diode and light emitting diode array having unifo

1993-06-18

1995-05-30

Ngo, Ngan V.

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

Incoherent light emitter structure

With housing or contact structure

257 98, 257465, H01L 3300, H01L 2978, H01L 3100

Patent

active

054204445

ABSTRACT:
An LED array in which the optical output distribution in each light emitting region is as uniform as possible. An n electrode 3 is provided on the under surface of a substrate 2 and a p electrode is provided on the upper surface thereof. A multiplicity of light emitting regions 4 are formed on the upper layer of the substrate 2. Two strip-like conductor portions 6c extending over each light emitting region 4 in ohmic contact are connected to each electrode 6 so that a current is efficiently applied to the conductor portions 6c of each light emitting region 4 and the optical output distribution in each light emitting region 4 is made uniform.

REFERENCES:
patent: 4375686 (1983-03-01), de Waard
patent: 4633280 (1986-12-01), Takasu
patent: 4721977 (1988-01-01), Fukae
patent: 4722089 (1988-01-01), Botez et al.
patent: 4792959 (1988-12-01), Mueller et al.
patent: 4924276 (1990-05-01), Heime
patent: 4951098 (1990-08-01), Albergo
patent: 4956684 (1990-09-01), Urata
patent: 4984035 (1991-01-01), Kanazawa
patent: 5077587 (1991-12-01), Albergo et al.
patent: 5250820 (1993-10-01), Sawase et al.

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