Lighting devices having optical waveguides for controlled light distribution

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12152756
APP PUB NO 20230417382A1
SERIAL NO

18135586

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Lighting devices having optical waveguides for controlled light distribution are provided. A lighting device includes a housing, a light emitter disposed in the housing, and a waveguide at least partially disposed in an opening of the housing. The waveguide includes a light input surface defining coupling features, wherein the light emitter is disposed adjacent the light input surface and emits light into the coupling features. The waveguide further includes a light transmission portion disposed between the light input surface and a light extraction portion, wherein light from the light emitter received at the light input surface propagates through the light transmission portion toward the light extraction portion. The waveguide further includes the light extraction portion, which comprises at least one light redirection feature and at least one light extraction feature that cooperate to generate a controlled light pattern exiting the lighting device.

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Patent Owner(s)

Patent OwnerAddress
CREE LIGHTING USA LLC9201 WASHINGTON AVENUE RACINE WI 53406

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lim, Jin Hong Morrisville, US 33 332
Progl, Curt Raleigh, US 56 1249
Wilcenski, Steve Cary, US 7 44
Wilcox, Kurt Libertyville, US 80 1218
Yuan, Zongjie Libertyville, US 39 921

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