US 11,757,308 B2
Laser wireless power transfer system with active and passive safety measures
Behrooz Abiri, Pasadena, CA (US); Aroutin Khachaturian, Pasadena, CA (US); and Seyed Ali Hajimiri, La Canada, CA (US)
Assigned to California Institute of Technology, Pasadena, CA (US)
Filed by California Institute of Technology, Pasadena, CA (US)
Filed on Jan. 29, 2020, as Appl. No. 16/776,482.
Application 16/776,482 is a continuation of application No. 15/604,587, filed on May 24, 2017, granted, now 10,587,152.
Claims priority of provisional application 62/340,951, filed on May 24, 2016.
Prior Publication US 2020/0227949 A1, Jul. 16, 2020
Int. Cl. H02J 50/30 (2016.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01)
CPC H02J 50/30 (2016.02) [H02J 50/80 (2016.02); H02J 50/90 (2016.02)] 24 Claims
OG exemplary drawing
 
1. A wireless laser power transfer system comprising:
a first source of laser beam;
a first controller adapted to vary a power and a direction of the first laser beam, said first controller further adapted to modulate the first laser beam; and
a first wireless communication system adapted to receive a radio frequency signal or an infrared signal from a first target receiving the laser beam to coordinate the laser beam delivery to the first target;
a second source of laser beam; and
a second controller adapted to vary a power and a direction of the second laser beam, and wherein said second controller is further adapted to modulate the second laser beam, wherein said first controller causes the first modulated laser beam to strike a first target during a first time interval and the second controller causes the second modulated laser beam to strike a second target during the first time interval, and wherein said first controller causes the first modulated laser beam to strike the second target during a second time interval, and the second controller causes the second modulated laser beam to strike the first target during the second time interval.