Novartis Ag

Alcon, Inc.

Fabian Kern

Michael Wolf

Roger Biel

Axel Heinrich

Günter Lässig

Gabriela Cocora

Halina Heidrich

Volker Lanig

Peter Hagmann

Christian Süppel-Adrian

A method of cleaning deposited material from a molding surface () of a mold () for forming ophthalmic lenses, including bringing a cleaning head () into contact with the molding surface (), the rotational axis () of the cleaning head () being arranged normal to the molding surface (), rotating () the cleaning head () around the rotational axis () while maintaining the contact between the cleaning head () and the molding surface (), moving the cleaning head () to perform a precession motion () around a central normal () on the molding surface (), while rotating () the cleaning head () around the rotational axis () and while maintaining the contact between the cleaning head () and the molding surface (). During the precession motion () the rotational axis () includes an inclination angle (&#x3b1;) with the central normal () on the molding surface ().

Method and device for cleaning deposited material from a molding surface of a mold for forming ophthalmic lenses

A gripper (1) for a contact lens (CL) includes a gripper head (10) having a bearing surface (11), the bearing surface (11) having at least one opening (110) through which underpressure can be applied in order to suck the contact lens (CL) against the bearing surface (11) and through which overpressure can be applied in order to release the contact lens (CL) from the bearing surface (11). The gripper further includes a detection opening (111) in the bearing surface (11) through which a separate underpressure can be applied.

Gripper for a contact lens and process for transporting a contact lens

A gripper () for a contact lens (CL) includes a gripper head () having a bearing surface (), the bearing surface () having at least one opening () through which underpressure can be applied in order to suck the contact lens (CL) against the bearing surface () and through which overpressure can be applied in order to release the contact lens (CL) from the bearing surface (). The gripper further includes a detection opening () in the bearing surface () through which a separate underpressure can be applied.

An ophthalmic lens , e.g. a contact lens, is centered in a concave trough () of an inspection cell () which is filled with liquid (W). The inspection cell () has a channel () which is in communication with the concave trough (). Centering of the ophthalmic lens is achieved by applying a pulse (P) of a fluid to the liquid (W) so as to whirl up the ophthalmic lens (CL) and by allowing the ophthalmic lens (CL) to settle down in the center of the concave trough ().

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Amorbach, Germany

Fabian Kern