Johnson and Johnson Vision Care, Inc.

Eric Dogan

Ivan M Nunez

Venkat Sekharipuram

Joseph A Bishop

Amitava Gupta

Edgar V Menezes

Steven Wade Hamblin

Edwin Van Doorn

Charles Foster

Michele Alton

Marc Evers

Jack Van Nunen

Michael Hompus

Ron Kok

Elbert Basham

Dan Boulay

Gary Marceau

The present invention provides methods and compositions for producing lenses by casting. The processes utilize a two-stage, ultraviolet cure to provide a fast and reliable method for producing ophthalmic lenses.

Methods and compositions for the manufacture of ophthalmic lenses

An apparatus for the automated production of ophthalmic lenses, particularly compound lenses having a plastic coating on a plastic lens is described. A mold, after rotational orientation, is placed in a gimbal assembly to provide for the proper tilt. This gimbal assembly forms part of a fixture attached to an indexing means which moves for complete assembly of a molding fixture and then moves the molding fixture through a chamber to cure the resin. A preform, after rotational orientation, is held, by a preform gripper placed above the mold, and with sufficient clearance between the mold and the preform to allow the correct resin thickness during the curing portion of the process. The fixture is also provided with members to firmly grip the preform gripper so as to maintain its orientation throughout the curing process.

Apparatus for automated ophthalmic lens fabrication

The fixture of the invention provides a bottom portion into which a mold half is placed. Movably mounted above the bottom portion is a top portion having two horizontal plates adapted to slide relative to each other to control the X direction and Y direction and hold a preform or wafer. The top portion is further adapted to allow for the adjustment of the relative angle between the preform or wafer and mold half, as well as adjustment of the distance between the top portion and bottom portion.

Four axis casting fixture

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Roanoke, VA, United States of America

Eric Dogan