Active illumination and time-of-flight camera system to evaluate facial blood flow, eye movements and physiological parameters

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United States of America

PATENT NO 12226188
APP PUB NO 20230277065A1
SERIAL NO

18118013

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A measurement system comprising one or more semiconductor diodes configured to penetrate tissue comprising skin. The detection system comprising a camera, which may also include a direct or indirect time-of-flight sensor. The detection system synchronized to the pulsing of the semiconductor diodes, and the camera further coupled to a processor. The detection system non-invasively measuring blood within the skin, measuring hemoglobin absorption between 700 to 1300 nm, and the processor deriving physiological parameters and comparing properties between different spatial locations and variation over time. The semiconductor diodes may comprise vertical cavity surface emitting lasers, and the detection system may comprise single photon avalanche photodiodes. The measurement system may be used to observe eye parameters and differential blood flow. The system may be used with photo-bio-modulation therapy, or it may be used in advanced driver monitoring systems for multiple functions including head pose, eye tracking, facial authentication, and smart restraint control systems.

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Patent Owner(s)

  • OMNI MEDSCI, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Islam, Mohammed N Ann Arbor, US 189 5264

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