公开(公告)号：US20240399684A1

公开(公告)日：2024-12-05

申请号：US18678833

申请日：2024-05-30

Applicant: Alcon Inc.

Inventor： Newton T. Samuel ,  Ya-Wen Chang ,  Richard Charles Breitkopf ,  Augustine Twum Kumi ,  Steve Yun Zhang ,  David Borja ,  Ethan Leveillee ,  Joseph Michael Lindacher

IPC: B29D11/00 ,  B29C35/08 ,  B29K105/24 ,  B29L11/00 ,  G02B1/04

Abstract: The invention provides a method for producing embedded diffractive contact lenses involving use of a mold set in two-curing steps. The mold set consists of three mold halves, one of which is used twice, the first time for molding a diffractive insert and the second time for an embedded contact lens with the molded diffractive insert embedded therein. The twice-used mold half has been treated with a corona plasma or a vacuum UV in a central circular area having a diameter equal to or smaller than the diameter of the insert to ensure that the molded insert consistently adheres to the twice-used mold half, even though the other mating insert mold half for molding the diffractive insert has a great tendency to bind strongly the molded insert due to the diffractive structure on its molding surface.

公开(公告)号：US20210191154A1

公开(公告)日：2021-06-24

申请号：US17125040

申请日：2020-12-17

Applicant: Alcon Inc.

Inventor： David Borja ,  Joseph Michael Lindacher ,  Ying Pi

IPC: G02C7/04

Abstract: A hybrid diffractive and refractive contact lens, and methods of treatment of optical conditions using such a lens. A first lens portion is formed from a first lens material having a first index of refraction and includes at least one diffractive optical element. A second lens portion is formed from a second lens material having a second index of refraction different from the first index of refraction. The diffractive optical element may be embedded within the second lens portion to provide comfort, tear film stability, and optical performance.

公开(公告)号：US20240288713A1

公开(公告)日：2024-08-29

申请号：US18588279

申请日：2024-02-27

Applicant: Alcon Inc.

Inventor： Ethan Leveillee ,  Joseph Michael Lindacher ,  David Borja ,  Ying Pi ,  Newton T. Samuel ,  Ya-Wen Chang

IPC: G02C7/04 ,  B29D11/00 ,  G02C7/02 ,  B29K29/00

CPC classification number: G02C7/049 ,  B29D11/00057 ,  B29D11/00317 ,  B29D11/0048 ,  G02C7/021 ,  B29C2795/007 ,  B29K2029/04

Abstract: An embedded contact lens that comprises a lens body that has an anterior surface and an opposite posterior surface. The lens body is composed of a bulk hydrogel material and a circular insert embedded in the bulk hydrogel material and comprises an annular mask on the anterior surface or the posterior surface of the lens body. The circular insert comprises a peripheral edge. Both the annular mask and the insert are concentric with a central axis of the lens body. The annular mask is an opaque colored area that covers or overlaps the peripheral edge of the circular insert to minimize or eliminate optical disturbances induced by peripheral edge of the circular insert.

公开(公告)号：US20230004023A1

公开(公告)日：2023-01-05

申请号：US17838358

申请日：2022-06-13

Applicant: Alcon Inc.

Inventor： Zahra Bassampour ,  Chandana Kolluru ,  Steve Yun Zhang ,  Adam K. Sniady ,  Thomas M. Moy ,  Frank Chang ,  David Borja ,  Joseph Michael Lindacher ,  Ying Pi

IPC: G02C7/04 ,  C08J3/075 ,  C08G77/14

Abstract: The invention provides a delamination-resistant embedded silicone hydrogel contact lens having an insert that is embedded in a silicone hydrogel bulk material. The insert is made of a crosslinked polymeric material having a refractive index higher than that of the silicone hydrogel bulk material by at least 0.07 and comprises a diffractive structure disposed on one of the front and back curve surfaces of the insert for providing a diffractive power that contributes to the overall optical power of the contact lens.

公开(公告)号：US20210191153A1

公开(公告)日：2021-06-24

申请号：US17125003

申请日：2020-12-17

Applicant: Alcon Inc.

Inventor： David Borja ,  Joseph Michael Lindacher ,  Ying Pi

IPC: G02C7/04

Abstract: A hybrid diffractive and refractive contact lens, and methods of treatment of optical conditions using such a lens. A first lens portion is formed from a first lens material having a first index of refraction and includes at least one diffractive optical element. A second lens portion is formed from a second lens material having a second index of refraction different from the first index of refraction. The diffractive optical element may be embedded within the second lens portion to provide comfort, tear film stability, and optical performance.

公开(公告)号：US20240288712A1

公开(公告)日：2024-08-29

申请号：US18588225

申请日：2024-02-27

Applicant: Alcon Inc.

Inventor： Ethan Leveillee ,  Joseph Michael Lindacher ,  David Borja ,  Ying Pi ,  Newton T. Samuel ,  Ya-Wen Chang

IPC: G02C7/04

CPC classification number: G02C7/04

Abstract: A bi-layer contact lens having an insert embedded in a bulk hydrogel material. The insert comprises at least one peripheral edge, wherein the peripheral edge of the insert is configured to provide improved lens performance by selective application of at least one design parameter selected from width, angle, shape configuration, and combinations thereof the peripheral edge of the insert.

公开(公告)号：US20240100791A1

公开(公告)日：2024-03-28

申请号：US18373366

申请日：2023-09-27

Applicant: Alcon Inc.

Inventor： David Andrew Icenogle ,  Joseph Michael Lindacher

IPC: B29D11/00

CPC classification number: B29D11/00951 ,  B29D11/00125

Abstract: A system and method for automated production of a hybrid lens product comprising a lens insert embedded within a lens body. The system preferably includes a first carrier for holding at least one first mold half, a second carrier for holding at least one lens insert, and a third carrier for holding at least one second mold half. The system preferably also includes an automated movement enabling pick-and-place subassembly for positioning a lens insert within a first mold half, and for engaging a second mold half with a first mold half.