US 12,330,385 B2
Cast lens
Hannah Vu, Ramsey, MN (US); David Olund, Ramsey, MN (US); Sarawuth Seewattanangkoon, Ramsey, MN (US); Ladawan Chantharadet, Ramsey, MN (US); Harjit Bhambra, Ramsey, MN (US); Tim Reynolds, Ramsey, MN (US); Robin Kezar, Ramsey, MN (US); Jeff Brown, Ramsey, MN (US); and Richard Blacker, Ramsey, MN (US)
Assigned to HOYA Optical Labs Of America, Inc., Lewisville, TX (US)
Filed by HOYA Optical Labs Of America, Inc., Lewisville, TX (US)
Filed on Feb. 26, 2021, as Appl. No. 17/187,602.
Application 17/187,602 is a division of application No. 15/593,148, filed on May 11, 2017, granted, now 10,962,684.
Claims priority of provisional application 62/336,368, filed on May 13, 2016.
Prior Publication US 2021/0208309 A1, Jul. 8, 2021
Int. Cl. B29D 11/00 (2006.01); G02B 1/04 (2006.01); G02B 1/14 (2015.01); B29K 69/00 (2006.01); B29K 75/00 (2006.01); G02C 7/10 (2006.01); G02C 7/12 (2006.01)
CPC B29D 11/00528 (2013.01) [B29D 11/0048 (2013.01); B29D 11/00865 (2013.01); B29D 11/00923 (2013.01); G02B 1/041 (2013.01); G02B 1/14 (2015.01); B29D 11/00442 (2013.01); B29D 11/00653 (2013.01); B29K 2069/00 (2013.01); B29K 2075/00 (2013.01); G02C 7/102 (2013.01); G02C 7/12 (2013.01); G02C 2202/16 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of forming an ophthalmic lens comprising:
obtaining an optically functional wafer;
coating the optically functional wafer with an adhesion improving coating to form a coated optically functional wafer;
positioning the coated optically functional wafer within a cavity of a lens mold assembly;
introducing a mixture of an aliphatic diisocyanate component, a dual amine/hydroxyl component comprising an amino and a hydroxyl functional group in the same molecule and a hydroxyl-containing component or a mixture of said aliphatic diisocyanate component and said dual amine/hydroxyl component to form a polyurea-urethane lens resin into the cavity of the lens mold adjacent to the adhesion improving coating of the coated optically functional wafer; and
polymerizing the polyurea-urethane lens resin within the cavity of the lens mold.