Linear optical projection device and method of use thereof

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United States of America Patent

PATENT NO 11466837
APP PUB NO 20210095832A1
SERIAL NO

17037174

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Abstract

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An optical projection device for projecting a linear image is disclosed. Light emitted by an array of light emitting diodes arranged along an array axis is focused in at least a direction perpendicular to the array axis and diffused in a direction parallel to the array axis, thereby generating a linear image in which light from adjacent light emitting diodes is spatially overlapped. In some embodiments, the focusing and diffusion of the light is performed by a Fresnel lens and a lenticular lens, respectively. The optical projection device may be employed to virtually mark a surface, such as a floor in an industrial setting. High power light emitting diodes may be employed to generate a linear image having an illuminance of at least 4000 lux that is focused to a distance between 7.5 and 20 feet.

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Patent Owner(s)

Patent OwnerAddress
PHOTONIC ENDEAVOURS INC99-B INGRAM DRIVE NORTH YORK ON M6M 2L7

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fedorov, Dimitry Toronto, CA 2 1

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