US 12,440,135 B2
Systems and methods for calibration of an optical measurement system
Alex Borisevich, Lancaster, CA (US); Ryan Field, Culver City, CA (US); and Han Yong Ban, Los Angeles, CA (US)
Assigned to HI LLC, Culver City, CA (US)
Filed by HI LLC, Los Angeles, CA (US)
Filed on Feb. 10, 2022, as Appl. No. 17/668,722.
Claims priority of provisional application 63/208,341, filed on Jun. 8, 2021.
Claims priority of provisional application 63/154,162, filed on Feb. 26, 2021.
Prior Publication US 2022/0273212 A1, Sep. 1, 2022
Int. Cl. A61B 5/16 (2006.01); A61B 5/00 (2006.01); A61B 5/375 (2021.01)
CPC A61B 5/165 (2013.01) [A61B 5/375 (2021.01); A61B 5/4064 (2013.01); A61B 5/6803 (2013.01)] 27 Claims
OG exemplary drawing
 
1. An optical measurement system comprising:
a light source configured to emit light directed at a target;
a first detector configured to detect arrival times for photons of the light after the light is scattered by the target;
a second detector configured to function as both a temperature sensor configured to output a temperature signal representative of a temperature of the light source and an optical sensor configured to output a power signal representative of an optical power level of the light emitted by the light source; and
a driver circuit configured to output, based on the temperature signal and the power signal output by the second detector, an input current for the light source.