公开(公告)号：US20210154957A1

公开(公告)日：2021-05-27

申请号：US16953600

申请日：2020-11-20

Applicant: Alcon Inc.

Inventor： Lindsay Olson ,  Mark Neely ,  David Saenz Landazabal ,  Uwe Haken

IPC: B29D11/00

Abstract: The invention provides a method producing contact lenses, comprising the step of: separating the mold into the male and female mold halves, with the silicone hydrogel contact lens adhered on one of the male and female mold halves; cooling the lens-adhere mold half with the molded silicone hydrogel contact lens adhered thereon; bringing a shaped ultrasonic horn in direct contact with at least one area of a non-optical surface of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached thereon; and applying a ultrasonic vibrational energy to the at least one area of the non-optical surface of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached thereon so as to separate the molded silicone hydrogel contact lens from the mold half attached thereon.

公开(公告)号：US11840033B2

公开(公告)日：2023-12-12

申请号：US16953600

申请日：2020-11-20

Applicant: Alcon Inc.

Inventor： Lindsay Olson ,  Mark Neely ,  David Saenz Landazabal ,  Uwe Haken

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

CPC classification number: B29D11/00192 ,  B29D11/00201 ,  B29K2083/00 ,  B29K2105/0061

Abstract: The invention provides a method producing contact lenses, comprising the step of: separating the mold into the male and female mold halves, with the silicone hydrogel contact lens adhered on one of the male and female mold halves; cooling the lens-adhere mold half with the molded silicone hydrogel contact lens adhered thereon; bringing a shaped ultrasonic horn in direct contact with at least one area of a non-optical surface of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached thereon; and applying a ultrasonic vibrational energy to the at least one area of the non-optical surface of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached thereon so as to separate the molded silicone hydrogel contact lens from the mold half attached thereon.

公开(公告)号：US11433630B2

公开(公告)日：2022-09-06

申请号：US16709119

申请日：2019-12-10

Applicant: Alcon Inc.

Inventor： Honghui Lu ,  Mark Neely ,  Alice Weimin Liu ,  Xuxian Niu ,  Uwe Haken

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

Abstract: The present invention generally relates to a method for producing silicone hydrogel contact lenses having less optical defects or free of optical defects by subjecting the extraction tray for the formed silicone hydrogel contact lenses to a reciprocating lowering and raising motion thereof to obtain the silicone hydrogel contact lenses.

公开(公告)号：US20220266554A1

公开(公告)日：2022-08-25

申请号：US17662858

申请日：2022-05-11

Applicant: Alcon Inc.

Inventor： Alice Weimin Liu ,  Daryl Reece ,  Kirk Cooper ,  Shridhar Natarajan ,  John Janders ,  Uwe Haken ,  Stacey Elliott

IPC: B29D11/00 ,  B29C37/00 ,  B29C39/36 ,  B29C43/50

Abstract: The invention provides a method producing contact lenses, comprising the step of: separating the mold into the male and female mold halves, with the silicone hydrogel contact lens adhered on one of the male and female mold halves; bring a shaped ultrasonic horn in direct contact with at least one area of a non-optical surface of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached thereon; and applying a ultrasonic vibrational energy to the at least one area of the non-optical surface of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached thereon so as to separate the molded silicone hydrogel contact lens from the mold half attached thereon.

公开(公告)号：US11279103B2

公开(公告)日：2022-03-22

申请号：US15782579

申请日：2017-10-12

Applicant: Alcon Inc.

Inventor： Daryl Reece ,  Uwe Haken ,  Delores Davis

IPC: B29D11/00 ,  G02C7/04 ,  G02B1/04

Abstract: The invention provides a method producing contact lenses, including the step of: holding the molded silicone hydrogel contact lens attached to the one of the female mold half or the male mold half with a vacuum supplied with a suction cup; deforming a surface of the one of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached to with a pin so as to separate the molded silicone hydrogel contact lens from the mold half attached to and to transfer the molded silicone hydrogel contact lens to the suction cup; moving the suction cup away from the pin while the suction cup continues to hold the molded silicone hydrogel contact lens remains; applying a compressed gas to blow the molded silicone hydrogel contact lens away from the suction cup into a container.