Vehicle external illumination device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12222077
APP PUB NO 20240044469A1
SERIAL NO

18238088

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A directional illumination device for a vehicle external light comprises an array of light sources and an imaging waveguide comprising an input surface and a reflective end. Opposed guide surfaces are arranged to guide input light from the input surface to the reflective end and back along the waveguide after reflection at the reflective end, the waveguide being arranged to extract input light as it is guided back along the waveguide after reflection and to cause the extracted light to exit through the first guide surface. The reflective end has positive optical power in the direction laterally across the waveguide and the waveguide is arranged to direct the extracted light in respective output illumination directions distributed in a lateral direction in dependence on the input positions of the light sources in the direction laterally across the waveguide. A thin, high brightness and high efficiency controllable directional vehicle headlight is provided.

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Patent Owner(s)

  • REALD SPARK, LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harrold, Jonathan Upper Heyford, GB 197 7056
Robinson, Michael G Boulder, US 272 7550
Woodgate, Graham J Henley-on-Thames, GB 193 5219

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