Lens for improved color mixing and beam control of an LED light source

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12234984
APP PUB NO 20240230061A1
SERIAL NO

18431165

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Importance

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Abstract

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A multi-color LED illumination device and specifically a lens comprising a cylindrical opening extending into the lens from a light entry region at which one or more LEDs are configured. A concave spherical surface extends across the entirety of the light exit region of the lens, and a TIR outer surface shaped as a CPC extends between the light entry region and the light exit region. There are various diffusion surfaces placed on the sidewall surface of the cylindrical opening, as well as its upper planar surface and, depending on whether glare control is not needed, the exit surface of the lens. Lunes can also be configured on the sidewall surfaces of the cylindrical opening and if lessening glare is needed, also on the TIR outer reflective surface. The combination of lunes, diffusion elements, and the overall configuration of the lens provides improved color mixing and output brightness.

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Patent Owner(s)

  • LUTRON TECHNOLOGY COMPANY LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dong, Fangxu Austin, US 32 145

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