Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With heterojunction
Patent
1996-04-23
1998-01-06
Crane, Sara W.
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With heterojunction
257 79, 257 81, 257 94, 257 98, H01L 3300
Patent
active
057058342
ABSTRACT:
In an LED a large portion of the light produced is lost due to total internal reflection at the air-semiconductor interface. A reverse taper of the semiconductor is used to change the angle at which light strikes the interface so that a greater portion of the light is transmitted.
REFERENCES:
patent: 5233204 (1993-08-01), Fletcher et al.
patent: 5349211 (1994-09-01), Kato
Egalon Claudio O.
Rogowski Robert S.
Chasteen Kimberly A.
Crane Sara W.
The United States of America as represented by the Administrator
Wille Douglas A.
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