US 12,261,456 B2
Wireless charging systems
Tobias Dahl, Trondheim (NO); and Jostein Thorstensen, Trondheim (NO)
Assigned to SINTEF TTO AS, Trondheim (NO)
Appl. No. 17/926,492
Filed by SINTEF TTO AS, Trondheim (NO)
PCT Filed May 20, 2021, PCT No. PCT/GB2021/051231
§ 371(c)(1), (2) Date Nov. 18, 2022,
PCT Pub. No. WO2021/234400, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 2007604 (GB), filed on May 21, 2020; and application No. 2106711 (GB), filed on May 11, 2021.
Prior Publication US 2023/0187977 A1, Jun. 15, 2023
Int. Cl. H02J 50/30 (2016.01); H02J 7/35 (2006.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01)
CPC H02J 50/30 (2016.02) [H02J 7/35 (2013.01); H02J 50/80 (2016.02); H02J 50/90 (2016.02)] 21 Claims
OG exemplary drawing
 
1. A system for wirelessly charging at least one device, said device comprising a photovoltaic cell for converting incident light into electrical energy, the system further comprising a supply unit arranged to transmit a charging laser beam to the photovoltaic cell of the device, wherein the supply unit is further arranged to transmit a visible light pattern for providing a user with information relating to charging of the device.