US 11,870,390 B2
Receiver for free-space optical power beaming
Raymond Hoheisel, Arlington, VA (US); and Andreas Heller, Stuttgart (DE)
Filed by Raymond Hoheisel, Arlington, VA (US); and Andreas Heller, Stuttgart (DE)
Filed on Jan. 31, 2022, as Appl. No. 17/588,762.
Claims priority of provisional application 63/144,699, filed on Feb. 2, 2021.
Prior Publication US 2022/0247348 A1, Aug. 4, 2022
Int. Cl. H01L 31/042 (2014.01); H02S 10/00 (2014.01); H02S 40/20 (2014.01); H02S 40/42 (2014.01); H02S 40/22 (2014.01); H02J 50/30 (2016.01); G02B 5/10 (2006.01); H02S 30/00 (2014.01)
CPC H02S 40/22 (2014.12) [G02B 5/10 (2013.01); H02J 50/30 (2016.02); H02S 30/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A free-space optical power beaming device configured to receive a light beam from an external source, the device comprising:
a plurality of photovoltaic elements configured to convert light to electrical energy;
a plurality of electrical charge storage elements, each electrical charge storage element coupled with at least one of the plurality of photovoltaic elements and configured to store electrical energy output from the at least one of the plurality of photovoltaic elements; and
a light reflector element configured to reflect a light beam toward one or more of the plurality of photovoltaic elements,
wherein a set of the plurality of photovoltaic elements is configured in a tilted manner in which each of the set of the plurality of photovoltaic elements fan in or out from the light reflector element, and
wherein a vector normal to a light receiving surface of each photovoltaic element of the set of the plurality of photovoltaic elements is substantially not directed toward the symmetry axis of the light reflector element.