Patent ID: 11857316
Assignee: HI LLC
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 0:
1. A non-invasive optical detection system, comprising:
an acoustic assembly configured for emitting ultrasound to create an optical masking zone in a volume of non-interest of a scattering medium;
an interferometer configured for delivering sample light, during a measurement period, into the scattering medium further having a volume of interest, such that a first portion of the sample light passes through the volume of interest without passing through the optical masking zone in the volume of non-interest and without being tagged by the emitted ultrasound, and exits the scattering medium as signal light, and a second portion of the sample light passes through the optical masking zone in the volume of non-interest and exits the scattering medium as background light that is combined with the signal light to create a sample light pattern, the interferometer further configured for combining reference light with the sample light pattern to create at least one interference light pattern, each having a holographic beat component, wherein the optical masking zone decorrelates at least a portion of the background light of the sample light pattern from the holographic beat component of each of the at least one interference light pattern;
at least one detector configured for detecting the holographic beat component of each of the at least one interference light pattern during the measurement period; and
a processor configured for determining an optical parameter of the volume of interest based on the detected holographic beat component of each of the at least one interference light pattern.