US 11,777,340 B2
Charging case for electronic contact lens
Ryo Kubota, Seattle, WA (US); Patrizia Weber, Bern (CH); Marco Burgener, Bern (CH); Jonas Butscher, Zürich (CH); Praveenth Sanmugarajah, Biberist (CH); Hans Bernhard, Schliern (CH); and Amitava Gupta, Roanoke, VA (US)
Assigned to ACUCELA INC., Seattle, WA (US)
Appl. No. 17/904,450
Filed by ACUCELA INC., Seattle, WA (US)
PCT Filed Feb. 19, 2021, PCT No. PCT/US2021/070166
§ 371(c)(1), (2) Date Aug. 17, 2022,
PCT Pub. No. WO2021/168481, PCT Pub. Date Aug. 26, 2021.
Claims priority of provisional application 62/979,994, filed on Feb. 21, 2020.
Prior Publication US 2023/0063265 A1, Mar. 2, 2023
Int. Cl. H02J 50/10 (2016.01); H02J 50/40 (2016.01); A45C 11/00 (2006.01); A45C 15/00 (2006.01); G02C 7/04 (2006.01); G02C 11/00 (2006.01); H02J 7/00 (2006.01)
CPC H02J 50/10 (2016.02) [A45C 11/005 (2013.01); A45C 15/00 (2013.01); G02C 7/04 (2013.01); G02C 11/10 (2013.01); H02J 7/0013 (2013.01); H02J 7/0044 (2013.01); H02J 50/40 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A charging case for an electronic contact lens (eCL), comprising:
a housing;
a power source within the housing;
a container sized and shaped to receive the eCL;
an aperture formed in the housing and shaped to receive the container therein;
a charging coil coupled to the power source, the charging coil comprising a maximum cross-sectional dimension larger than a maximum cross-sectional dimension of a coil of the eCL; and
a protrusion extending from the container and configured to couple the container to the housing while the charging coil charges the eCL.