公开(公告)号：US20220365371A1

公开(公告)日：2022-11-17

申请号：US17661121

申请日：2022-04-28

Applicant: Alcon Inc.

Inventor： Junhao Ge ,  Richard Charles Breitkopf ,  Steve Yun Zhang ,  Yuan Chang ,  Augustine Twum Kumi

IPC: G02C7/10 ,  G02B1/04 ,  G02C7/04

Abstract: The invention is directed to a colored cosmetic photochromic contact lens, comprising: a pupil section, a generally annular iris section surrounding the pupil section, wherein at least the pupil section is photochromic, wherein the iris section having a colored, printed, opaque, intermittent pattern, wherein the said pattern is covered by a clear ink layer, wherein the clear ink layer is on outer surface of lens to the observer.

公开(公告)号：US11433629B2

公开(公告)日：2022-09-06

申请号：US16429776

申请日：2019-06-03

Applicant: Alcon Inc.

Inventor： Weihong Lang ,  Wei Liang ,  Ying Zheng ,  Karen Belinda Sentell ,  Richard Charles Breitkopf ,  Daqing Wu ,  Steve Yun Zhang

IPC: B29D11/00 ,  G02B1/04 ,  B29K83/00 ,  B29K105/00

Abstract: The invention provides a contact lens manufacturing method for cast-molding of silicone hydrogel contact lenses having enhanced oxygen permeability without adversely affecting desirable lens mechanical properties (e.g., modulus). A method of the invention comprises adding a small amount of a radical scavenger (e.g., H-TEMPO) in a polymerizable composition for cast-molding of SiHy contact lenses) to provide the resultant polymerizable composition with a bi-phase curing profile at a curing temperature of from about 45° C. to about 100° C. With such a bi-phase curing profile, the resultant polymerizable composition can be thermally cured at the curing temperature to form a SiHy contact lens having an oxygen permeability higher than that for a polymerizable composition having the substantially identical composition excepting being free of any radical scavenger.

公开(公告)号：US11365288B2

公开(公告)日：2022-06-21

申请号：US17038293

申请日：2020-09-30

Applicant: Alcon Inc.

Inventor： Steve Yun Zhang ,  Daqing Wu ,  Junhao Ge ,  Richard Charles Breitkopf ,  Xinming Qian ,  Zach Munoz ,  Matthew D. Nelson ,  Augustine Twum Kumi ,  Weihong Lang ,  Ying Zheng ,  Feng Jing ,  Frank Chang

IPC: C08G77/442 ,  C08G77/20 ,  C08G77/388 ,  C08G77/392 ,  C08G77/14 ,  C08L83/10 ,  G02B1/04 ,  C08G77/12 ,  B29D11/00 ,  G02C7/04

Abstract: The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.