Light emitting diode with reflection cup

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...

Reexamination Certificate

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Details

C257S099000, C257S100000

Reexamination Certificate

active

07042021

ABSTRACT:
A light emitting diode of this invention comprises: a base substrate having a pair of electrode portions; a light emitting element mounted on the base substrate and electrically connected to the electrode portions; a reflection cup placed on the base substrate to surround the light emitting element; and a resin sealant sealing the light emitting element; wherein the base substrate is formed with a raised portion on an upper surface thereof and the light emitting element is placed on a top surface of the raised portion so that side surfaces of the light emitting element are situated higher than a lower end of the reflection cup. With this construction, light emitted from the side surfaces of the light emitting element can be extracted efficiently in an upward direction.

REFERENCES:
patent: 3821775 (1974-06-01), Baird
patent: 5534718 (1996-07-01), Chang
patent: 6274890 (2001-08-01), Oshio et al.
patent: 6495861 (2002-12-01), Ishinaga
patent: 6774406 (2004-08-01), Isoda
patent: 2002-324917 (2002-11-01), None

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