US 12,326,617 B2
Flexible electro-active lens
Ronald D. Blum, Roanoke, VA (US); Joshua N. Haddock, Roanoke, VA (US); William Kokonaski, Gig Harbor, WA (US); and John D. Hunkeler, Mission, KS (US)
Assigned to e-Vision Smart Optics, Inc., Sarasota, FL (US)
Filed by e-Vision Smart Optics, Inc., Sarasota, FL (US)
Filed on Oct. 5, 2022, as Appl. No. 17/938,070.
Application 17/938,070 is a division of application No. 16/159,289, filed on Oct. 12, 2018, granted, now 11,474,380.
Application 16/159,289 is a division of application No. 14/850,232, filed on Sep. 10, 2015, granted, now 10,126,569, issued on Nov. 13, 2018.
Application 14/850,232 is a continuation of application No. 12/017,858, filed on Jan. 22, 2008, granted, now 9,155,614, issued on Oct. 13, 2015.
Claims priority of provisional application 60/960,607, filed on Oct. 5, 2007.
Claims priority of provisional application 60/881,514, filed on Jan. 22, 2007.
Prior Publication US 2023/0028581 A1, Jan. 26, 2023
Int. Cl. G02C 7/04 (2006.01); A61F 2/14 (2006.01); A61F 2/16 (2006.01); G02B 1/04 (2006.01); G02C 7/08 (2006.01); A61N 1/05 (2006.01)
CPC G02C 7/083 (2013.01) [A61F 2/145 (2013.01); A61F 2/1616 (2013.01); A61F 2/1627 (2013.01); G02B 1/043 (2013.01); G02C 7/04 (2013.01); G02C 7/049 (2013.01); A61F 2250/0001 (2013.01); A61N 1/0543 (2013.01); G02C 2202/18 (2013.01); G02C 2202/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electro-active contact lens comprising:
a flexible refractive optic having a fixed refractive index and a semi-permeable membrane; and
a rigid electro-active element embedded within the flexible refractive optic, the rigid electro-active element comprising an electro-active material switchable between a first state and a second state, the electro-active material having a refractive index approximately equal to the fixed refractive index in the first state,
wherein the flexible refractive optic comprises a hydrophilic acrylic material.