US 11,864,867 B2
Control circuit for a light source in an optical measurement system by applying voltage with a first polarity to start an emission of a light pulse and applying voltage with a second polarity to stop the emission of the light pulse
Alex Borisevich, Los Angeles, CA (US); and Ryan Field, Culver City, CA (US)
Assigned to HI LLC, Los Angeles, CA (US)
Filed by HI LLC, Los Angeles, CA (US)
Filed on Mar. 16, 2021, as Appl. No. 17/202,554.
Claims priority of provisional application 63/038,485, filed on Jun. 12, 2020.
Claims priority of provisional application 62/992,486, filed on Mar. 20, 2020.
Prior Publication US 2021/0290067 A1, Sep. 23, 2021
Int. Cl. G01J 1/44 (2006.01); A61B 5/00 (2006.01); H01S 5/062 (2006.01)
CPC A61B 5/0082 (2013.01) [A61B 5/4064 (2013.01); A61B 5/6803 (2013.01); G01J 1/44 (2013.01); H01S 5/062 (2013.01); A61B 2562/0238 (2013.01); G01J 2001/442 (2013.01); G01J 2001/4466 (2013.01)] 28 Claims
OG exemplary drawing
 
1. An optical measurement system comprising:
a light source; and
a control circuit configured to:
apply voltage having a first polarity to the light source for a first time period to provide a threshold charge for the light source to start an emission of a light pulse, and
apply voltage having a second polarity opposite the first polarity to the light source for a second time period subsequent to the first time period to discharge the light source to stop the emission of the light pulse.