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

Claim 5:
6. An optical system, the system comprising:
a light source comprising a plurality of semiconductor sources, each of the semiconductor sources configured to be modulated and to generate an output light having one or more optical wavelengths, wherein at least a portion of the one of more optical wavelengths is a near-infrared wavelength between 700 nanometers and 2500 nanometers;
at least a first of the plurality of semiconductor sources comprising a first modulated light-emitting diode operating at a first wavelength with lower water absorption near 1090 nanometers and at least a second of the plurality of semiconductor sources comprising a second modulated light-emitting diode operating at a second wavelength with higher water absorption near 1440 nanometers;
one or more wavelength selective optical filters placed in front of the light source and configured to pass at least a part of the first wavelength or at least a part of the second wavelength, wherein the one or more wavelength selective optical filters comprise one or more dielectric filters;
the system comprising a housing configured to receive a portion of the at least a part of the first wavelength or at least a part of the second wavelength passed by the one or more wavelength selective optical filters and to deliver an output to an object, the housing further configured to be coupled to an electrical circuit and a processor;
the system including the processor further comprising a detection system comprising one or more photo-detectors configured to receive at least a portion of the output reflected from the object and to generate an output signal having a signal-to-noise ratio, wherein the detection system is configured to be synchronized to the first modulated light-emitting diode or the second modulated light-emitting diode; and
wherein the system including the processor is at least in part configured to identify the object based on water absorption within the object by generating a first part of the output signal related to output reflected from the object at the first wavelength, by generating a second part of the output signal related to output reflected from the object at the second wavelength, and by comparing at least some of the first part of the output signal and at least some of the second part of the output signal to generate an output value; and
wherein the system including the processor is configured to compare the output value to a threshold.