Coopervision International Holding Company, LP

Coopervision International Limited

John Robert Gibson

Hayden Atkinson

Terence Michael Cook

Ronnie Dean Dover

Tim Warren

James Bryan Cook

Geoffrey Douglas Sydney Payne

Paul Riggs

Arthur Williams

Jennifer Cowden

Michael Gunner

Justin Daniel Nardone

Houston Paul Tankersley

James Robert Craig

A method of removing an ophthalmic lens from a lens mold portion is provided and includes reciprocally displacing a region of the mold portion and thereby causing an edge portion of the ophthalmic lenses to become detached from the mold portion. Related apparatus, methods of manufacturing ophthalmic lenses, delensing stations, and manufacturing times are provided.

Methods and apparatus for manufacture of ophthalmic lenses

Apparatus and methods are described for manufacturing contact lenses by forming a contact lens mold half, and removing the mold half. The mold half can then be combined with a complementary mold half and used to cast-mold a contact lens. The apparatus includes first and second plates each carrying tool halves. The plates reciprocate between an open, spaced apart configuration, and a closed configuration in which they hold complementary tool halves in contact with one another. When the plates are opened after forming a mold half, a gripper plate removes the mold half from the first plate or the second plate.

Method and apparatus for manufacturing contact lenses

A tray () for holding contact lens mold assemblies () during thermal curing of a contact lens precursor material in an oven () to form contact lenses. The tray () comprises a plurality of plates () and a frame () supporting the plates (). The frame () is configured to be stacked vertically with a plurality of identical frames to form a tray stack (). Each plate () is a carbon-fiber reinforced polymer plate and comprises a plurality of support structures () each arranged to support one contact lens mold assembly () during curing and a plurality of channels () connecting the support structures (), to allow gases to flow between them in the tray stack () during curing.

Tray for use in manufacturing contact lenses

Apparatus and methods for manufacturing ophthalmic lenses by bringing together a pair of mold halves to form a closed mold assembly, are described. The method includes measuring a force applied to bring the mold halves together. The apparatus includes at least one force sensor in operative communication with a single pair of mold halves, and a controller for controlling a velocity of movement of a mold half and for determining when a measured force or average measured force is greater than or equal to a predetermined threshold force.

Apparatus and method for closure of ophthalmic lens molds

Methods and apparatus for exchanging tools and/or tool assemblies used to form different types of molds for in injection-molding machines, are described. The exchange of tools and/or tool assemblies is made using a robot. Contact lens mold halves and assemblies for molding contact lenses of different powers or types can be made with a single injection-molding apparatus.

Method and apparatus relating to manufacture of molds for forming contact lenses

A contact lens mold part and a contact lens mold assembly () are provided. The contact lens mold assembly includes a first mold part () and a second mold part () assembled together. Each mold part has a lens-forming surface with a circumferential edge, a stop surface extending from the circumferential edge, an intermediate region extending from the stop surface, and an alignment surface extending from the intermediate region. The mold parts can be made to fit together with an interference fit. A method of making a contact lens using the contact lens mold assembly is also provided.

Contact lens mold parts, contact lens mold assemblies, and methods of making contact lenses

Contact lens curing systems and methods are described. A contact lens curing system includes an oven that has a plurality of curing zones, a mold advancement system for moving contact lens mold assemblies between the plurality of zones, and a controlled atmosphere in the curing zones that provides a substantially chemically inert environment in which contact lens precursor materials can be polymerized in contact mold assemblies located in the curing zones. Methods of producing contact lenses include curing contact lens precursor materials in contact lens mold assemblies in the lens curing system.

Thermal curing methods and systems for forming contact lenses

Contact lens curing systems and methods are described. A contact lens curing system includes an oven that has a plurality of curing zones, a mold advancement system for moving the contact lens mold assemblies between the plurality of zones, and a controlled atmosphere within the curing zones that provides a substantially chemically inert environment in which contact lens precursor materials can be polymerized in contact lens mold assemblies located in the curing zones. Methods of producing contact lenses include curing contact lens precursor materials in contact lens mold assemblies in the lens curing system. As an example, an oven for curing contact precursor materials in molds, the curing process being done in an inert atmosphere, includes a plurality of heating zones, such as three heating zonesor two heating zonesand a mold advancement system for moving the molds between the plurality of zones, wherein a first zone and second zone of the plurality of zones are maintained at different temperaturesor

Contact lens curing systems and methods are described. A contact lens curing system includes an oven that has a plurality of curing zones a mold advancement system for moving the contact lens mold assemblies between the plurality of zones and a controlled atmosphere within the curing zones that provides a substantially chemically inert environment in which contact lens precursor materials can be polymerized in contact lens mold assemblies located in the curing zones. Methods of producing contact lenses include curing contact lens precursor materials in contact lens mold assemblies in the lens curing system. As an example, an oven for curing contact precursor materials in molds the curing process being done in an inert atmosphere, includes a plurality of heating zones, such as three heating zonesor two heating zonesand a mold advancement system for moving the molds between the plurality of zones, wherein a first zone and second zone of the plurality of zones are maintained at different temperaturesor

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Farnham Common, United Kingdom

John Robert Gibson