Alcon, Inc.

Novartis Ag

Matthias Schwab

Roger Biel

Matthias Braun

Shu Zong

Susanne Fechner

Sarah Unterkofler

Nicholas Gollas

Halina Heidrich

Thomas Tonn

Jan Bernard

Eduard Jetzlaff

Nils Schweizer

Daniel Kessler

Justyna Justynska-Reimann

Steffen Paulekuhn

Thomas Leibold

Yasin Acikgoez

Marcus Heift

Evgeni Schumm

Maricel Teresa Repetto

Udo Schuessler

Steffen Lieb

Jens Eppig

An automated production line for the production of ophthalmic lenses comprises:

Production line for the production of ophthalmic lenses

A method of providing a male mold half for molding a toric contact lens at a predetermined target rotational orientation is disclosed. The method comprises the steps of: —providing the male mold half at a predetermined rotational orientation, —picking the male mold half up with a gripper having a central axis, —rotating the gripper with the male mold half about the central axis of the gripper by a predetermined rotational angle (α) towards the predetermined target rotational orientation, and —releasing the rotated male mold half from the gripper. Prior to picking the male mold half up, the method comprises centering the grippe and the male mold half relative to each other such that the central axis of the gripper and a central axis of the male mold half coincide.

Method for providing a male mold half for molding a toric ophthalmic lens at a predetermined target rotational orientation

A lens care container (), in particular for contact lenses such as hard or soft contact lenses, comprises: The sensor () is arranged in the receptacle () when the cap () is attached to the receptacle ().

Lens care container

An injection molding apparatus for manufacturing an ophthalmic lens mold having a front surface comprising a lens forming portion and a rear surface, comprises a first molding tool and a second molding tool. The first and second molding tools are movable towards and away from each other between a closed position and an open position. In the closed position the first mold forming portion of the first molding tool and the second mold forming portion of the second molding tool define a cavity between them corresponding in shape to the shape of the ophthalmic lens mold. The surface of the second mold forming portion, at least in a central zone thereof, has a surface roughness Sin the range of 0.3 &#x3bc;m to 2 &#x3bc;m, and a surface roughness Sin the range of 10 &#x3bc;m to 50 &#x3bc;m.

Injection molding apparatus and method for manufacturing an ophthalmic lens mold through injection molding

A method for determining the inversion state of a soft contact lens (), comprising imaging a soft contact lens having a convex surface () and a concave surface (), a lens center and a lens edge () surrounding said soft contact lens (), the method comprising using an optical coherence tomography system to obtain at least one sectional image of at least a part of the contact lens () comprising the lens edge (), determining a cross-sectional edge geometry of the contact lens () extending from the lens edge () towards the lens center of the contact lens in the sectional image, the cross-sectional edge geometry corresponding to the convex and concave surface boundaries of the contact lens () in the sectional image, selecting a parameter defining the cross-sectional edge geometry of the contact lens () imaged and comparing the parameter defining the cross-sectional edge geometry of the contact lens () with a predetermined parameter defining a cross-sectional edge geometry of a non-inverted contact lens to determine whether said contact lens () is inverted.

Contact lens inspection method and system

A contact lens inspection system, in particular for soft contact lenses, comprises a light source () for illuminating a contact lens to be inspected; a plenoptic camera () for producing an electronic plenoptic image; a processing unit () adapted for electronically processing the electronic plenoptic image of the contact lens and configured for refocusing the image.

Contact lens inspection system

Disclosed is an inspection and system method and system for determining the orientation of a contact lens on a lens support, particularly in an automated contact lens manufacturing line.

A method for automated in-line determination of the center thickness of an ophthalmic lens including providing an inspection cuvette () having an optically transparent bottom () and a concave inner surface () and containing the lens immersed in a liquid, providing an interferometer having a light source and a focusing probe () focusing light coming from the light source to a set position () of the lens. Focusing probe () also directs light reflected at the boundary between the back surface of the lens and the liquid as well as light reflected at the boundary between the front surface of the lens and the liquid or at the boundary between the front surface of the lens and the concave inner surface () to a detector of the interferometer. The center thickness of the lens is determined using the light reflected at the respective boundary at the back surface and at the front surface of the lens.

Method for automated in-line determination of center thickness of an ophthalmic lens

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Amorbach, Germany

Matthias Schwab