US 12,072,603 B2
Double-layer electrode for electro-optic liquid crystal lens
Liwei Li, Tempe, AZ (US); Anthony Van Heugten, Sarasota, FL (US); Dwight P. Duston, Laguna Niguel, CA (US); Phil Bos, Hudson, OH (US); and Douglas Bryant, Aurora, OH (US)
Assigned to e-Vision Smart Optics, Inc., Sarasota, FL (US); and Kent State University, Kent, OH (US)
Filed by e-Vision Smart Optics, Inc., Sarasota, FL (US)
Filed on Nov. 14, 2022, as Appl. No. 18/055,061.
Application 18/055,061 is a continuation of application No. 17/175,050, filed on Feb. 12, 2021, granted, now 11,513,416.
Application 17/175,050 is a continuation of application No. 16/444,607, filed on Jun. 18, 2019, granted, now 10,955,707, issued on Mar. 23, 2021.
Application 16/444,607 is a continuation of application No. 15/487,934, filed on Apr. 14, 2017, granted, now 10,345,656, issued on Jul. 9, 2019.
Application 15/487,934 is a continuation of application No. 14/649,708, granted, now 9,625,767, issued on Apr. 18, 2017, previously published as PCT/US2013/077467, filed on Dec. 23, 2013.
Claims priority of provisional application 61/746,754, filed on Dec. 28, 2012.
Prior Publication US 2023/0089097 A1, Mar. 23, 2023
Int. Cl. G02F 1/29 (2006.01); G02B 30/00 (2020.01); G02F 1/1333 (2006.01); G02F 1/1343 (2006.01)
CPC G02F 1/29 (2013.01) [G02B 30/00 (2020.01); G02F 1/133345 (2013.01); G02F 1/134309 (2013.01); G02F 1/13439 (2013.01); G02F 1/294 (2021.01)] 17 Claims
OG exemplary drawing
 
1. An electro-optic device comprising:
a first liquid crystal lens to impart a first phase profile on incident light, the first liquid crystal lens comprising first concentric electrode rings separated by respective first insulating gaps; and
a second liquid crystal lens, in optical series with the first liquid crystal lens, to further impart a second phase profile on the incident light, the second liquid crystal lens comprising second concentric electrode rings separated by respective second insulating gaps,
wherein the first concentric electrode rings are positioned over the respective second insulating gaps and the second concentric electrode rings are positioned over the respective first insulating gaps.