High-power white LEDs

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United States of America Patent

PATENT NO 9105816
APP PUB NO 20140151736A1
SERIAL NO

14172308

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Abstract

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A light emitting apparatus has a first radiation source without a dome, a substantially transparent and light transmissive optic device devoid of scattering particles and phosphor, a lens, a down conversion material containing phosphor that is disposed on the planar top surface of the optic device between the lens and the radiation source, and a heat sink, upon which the radiation source is mounted, having a recess formed therein in which the radiation source, the optic device and the down conversion material are positioned, wherein an air space is defined between a boundary of the recess and the optic device.

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Patent Owner(s)

  • RENSSELAER POLYTECHNIC INSTITUTE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gu, Yimin Milpitas, US 18 807
Narendran, Nadarajah Clifton Park, US 30 1088

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