Patent ID: 11896346
Assignee: OMNI MEDSCI, INC.
Field: Measurement (Instruments)
Classification: CPC A  G  H  Y | IPC A  G  H

Claim 0:
1. An optical system, comprising:
a wearable device for measuring one or more physiological parameters, the wearable device adapted to be placed on a wrist or an ear of a user, including a light source comprising a plurality of light emitting diodes that are configured to generate an output optical light having one or more optical wavelengths;
the wearable device comprising one or more lenses configured to receive at least a portion of the output optical light and to deliver a lens output light to tissue;
the wearable device further comprising a detection system configured to receive at least a portion of the lens output light reflected from the tissue and to generate an output signal having a signal-to-noise ratio, wherein the detection system is configured to be synchronized to the light source;
wherein the detection system comprises a plurality of detectors that are spatially separated from each other, and wherein at least one analog to digital converter is coupled to at least one of the spatially separated detectors;
wherein the output signal is indicative of one or more of the physiological parameters;
the wearable device configured to increase the signal-to-noise ratio by increasing light intensity of at least one of the plurality of light emitting diodes from an initial light intensity; and
the detection system further configured to:
generate a first signal responsive to light received while the light emitting diodes are off,
generate a second signal responsive to light received while at least one of the light emitting diodes is on, and
increase the signal-to-noise ratio by comparing the first signal and the second signal;

the wearable device further configured to be coupled to a sensor system for optically detecting the user, the sensor system comprising:
an active illuminator comprising a plurality of semiconductor diodes, each of the semiconductor diodes configured to be modulated and to generate an output diode light having one or more diode optical wavelengths, wherein at least a portion of the one of more diode optical wavelengths is between 700 nanometers and 2500 nanometers;
at least a first of the plurality of semiconductor diodes operating at a first wavelength with lower water absorption and at least a second of the plurality of semiconductor diodes operating at a second wavelength with higher water absorption;
one or more wavelength selective optical filters configured to be placed in front of the active illuminator and configured to pass at least a part of the first wavelength or at least a part of the second wavelength;
the sensor system comprising a housing configured to receive a portion of at least some of the output diode lights passed by the one or more wavelength selective optical filters and to deliver a diode output to the user, the housing further configured to be coupled to an electrical circuit and another processor;
the sensor system further comprising a detection apparatus comprising one or more photo-detectors configured to receive at least a portion of the output diode light reflected from the user and to generate an output diode signal, wherein the detection apparatus is configured to be synchronized to the active illuminator; and
wherein the sensor system including the another processor is at least in part configured to identify the user based on water absorption within the user by generating a first part of the output diode signal related to output diode lights reflected from the user at the first wavelength, by generating a second part of the output diode signal related to output diode lights reflected from the user at the second wavelength, and by comparing at least some of the first part of the output diode signal and at least some of the second part of the output diode signal to generate an output value.