公开(公告)号：US20210129391A1

公开(公告)日：2021-05-06

申请号：US17083559

申请日：2020-10-29

Applicant: ALCON INC.

Inventor： Stefan Kastl ,  Steffen Paulekuhn ,  Stephan Pirl ,  Gabriela Cocora

IPC: B29C33/72 ,  B29D11/00

Abstract: A method of removing a lens forming material deposited on a lens forming surface (1) of a reusable glass mold for forming ophthalmic lenses, in particular contact lenses or intraocular lenses, comprises the steps of providing a plasma (2), exposing the lens forming surface (1) of the reusable glass mold to the plasma (2) for removing the lens forming material deposited on the lens forming surface (1). The plasma (2) is generated under atmospheric pressure and potential-free, or is generated under reduced pressure.

公开(公告)号：US20210318468A1

公开(公告)日：2021-10-14

申请号：US17199110

申请日：2021-03-11

Applicant: ALCON INC.

Inventor： Shu Zong ,  Peter Hagmann ,  Roger Biel ,  Axel Heinrich ,  Stephan Pirl

IPC: G02B1/04 ,  B29D11/00 ,  G02C7/02

Abstract: A manufacturing module (MM) for contact lenses comprises a plurality of manufacturing stations (300, 301, 302, 310, 320, 321, 322, 330, 331, 340, 341, 342, 350, 351, 352) arranged in a closed loop and a plurality of lens mold carriers (1, 2) which are transported through the manufacturing stations. Each lens mold carrier (1, 2) comprises a frame (10, 20) having a predetermined number of mounting sites (100, 200) arranged along the frame. Each lens mold carrier (1, 2) further comprises a predetermined number of molds (112, 212) removably mounted to the frame (10, 20) at the mounting sites (100, 200), the molds being reusable male or female molds (212, 112). Two lens mold carriers (1, 2) are assigned to each other to form a pair, so that upon mating the pair of lens mold carriers (1, 2) the male and female molds (212, 112) are mated to form mold cavities defining the shape of the lenses. The manufacturing stations comprise a mold changing station (300, 301, 302) configured to be capable of removing a mold from its mounting site (100, 200) and mounting a different mold at the said mounting site (100, 200), or configured to change the rotational position of a mold (112, 212) mounted to the frame (10, 20), or both.

公开(公告)号：US11759980B2

公开(公告)日：2023-09-19

申请号：US17083559

申请日：2020-10-29

Applicant: ALCON INC.

Inventor： Stefan Kastl ,  Steffen Paulekuhn ,  Stephan Pirl ,  Gabriela Cocora

IPC: B29D11/00 ,  B29C33/72

CPC classification number: B29C33/72 ,  B29D11/00125

Abstract: A method of removing a lens forming material deposited on a lens forming surface (1) of a reusable glass mold for forming ophthalmic lenses, in particular contact lenses or intraocular lenses, comprises the steps of providing a plasma (2), exposing the lens forming surface (1) of the reusable glass mold to the plasma (2) for removing the lens forming material deposited on the lens forming surface (1). The plasma (2) is generated under atmospheric pressure and potential-free, or is generated under reduced pressure.