Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1997-11-12
1999-06-22
Vargot, Mathieu D.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 401, 425135, 4251744, 425808, B29D 1100
Patent
active
059140747
ABSTRACT:
An apparatus and method for curing a polymerizable monomer or monomer mixture to form a soft contact lens includes a transport device for transporting a plurality of contact lens molds to a precure station in a low oxygen environment, each contact lens mold including a first and second mold half with a polymerizable monomer or monomer mixture therebetween. A clamping member clamps a first contact lens mold half against a second contact lens mold half for a predetermined pressure and time. While the mold halves of the contact lens mold are clamped, the polymerizable monomer or monomer mixture is exposed to a radiant energy source for partially polymerizing the polymerizable monomer or monomer mixture contained in each contact lens mold.
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Adams Jonathan Patrick
Bjerre Kaj
Christensen Svend
Kindt-Larsen Ture
Martin Wallace Anthony
Johnson & Johnson Vision Products Inc.
Vargot Mathieu D.
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