Separate optical device for directing light from an LED

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United States of America Patent

PATENT NO 9574743
APP PUB NO 20150036358A1
SERIAL NO

14520891

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Embodiments of the present invention provide separate optical devices operable to couple to a separate LED, the separate optical device comprising an entrance surface to receive light from a separate LED when the separate optical device is coupled to the separate LED, an exit surface opposite from and a distance from the entrance surface and a set of sidewalls. The exit surface can have at least a minimum area necessary to conserve brightness for a desired half-angle of light projected from the separate optical device. Furthermore, each sidewall is positioned and shaped so that rays having a straight transmission path from the entrance surface to that sidewall reflect to the exit surface with an angle of incidence at the exit surface at less than or equal to a critical angle at the exit surface.

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Patent Owner(s)

  • ILLUMITEX, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duong, Dung T Bee Cave, US 29 800
Thomas, Matthew R Austin, US 21 348
Winberg, Paul N Hot Springs Village, US 31 1217

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