Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...
Reexamination Certificate
2011-07-26
2011-07-26
Zarneke, David A (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With reflector, opaque mask, or optical element integral...
C257SE33067, C257SE33072
Reexamination Certificate
active
07985979
ABSTRACT:
Structures are incorporated into a semiconductor light emitting device which may increase the extraction of light emitted at glancing incidence angles. In some embodiments, the device includes a low index material that directs light away from the metal contacts by total internal reflection. In some embodiments, the device includes extraction features such as cavities in the semiconductor structure which may extract glancing angle light directly, or direct the glancing angle light into smaller incidence angles which are more easily extracted from the device.
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Choy Henry Kwong-Hin
David Aurelien J. F.
Wierer Jonathan J.
Koninklijke Philips Electronics , N.V.
Philips Limileds Lighting Company LLC
Zarneke David A
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