MOLD CLAMPING AND PRECURE OF A POLYMERIZABLE HYDROGEL
摘要
An apparatus and method for partially 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 polymerizing the polymerizable monomer or monomer mixture contained in each contact lens mold.
申请公布号
CA2151341(A1)
申请公布日期
1995.12.11
申请号
CA19952151341
申请日期
1995.06.08
申请人
JOHNSON & JOHNSON VISION PRODUCTS, INC.
发明人
MARTIN, WALLACE ANTHONY;ADAMS, JONATHAN PATRICK;BJERRE, KAJ;CHRISTENSEN, SVEND;KINDT-LARSEN, TURE;WALKER, CRAIG WILLIAM;WANG, DANIEL TSU-FANG;WIDMAN, MICHAEL FRANCIS