コンタクトレンズモールド充填組み立て装置

Japanese Patent JP4004573

B2

An apparatus for forming contact lenses, wherein front curve mold halves are filled with a hardenable transparent material, such as a polymerizable hydrogel, and back curve mold halves are coupled to the front curve, therein forming a lens. More Particularly, the apparatus includes a conveyor means for transporting pallets of mold halves to the apparatus, an array of piston structures for raising and aligning the back curves with respect to the filled front curve halves, reciprocating means for reciprocating the piston array to couple pairs of front and back curves, and a vacuum chamber and vacuum drawing means for maintaining a vacuum around the curves during coupling. In addition, there is provided individual spring biasing to each reciprocating element whereby sensitivity to thickness variations and pallet misfeeds may be minimized. Further, there is provided a vacuum sleeve, through which the pistons reciprocate within the vacuum chamber, which sleeve preserves the vacuum within the chamber.

Wallace Anthony Martin
Jonathan Patrick Adams
Jeffrey Eldon Stephen
Craig William Walker
Daniel Tu-Hwang Wong
Michael Francis Widman
Finn Sridge Andersen
Tuer Kint-Larsen

JP14337996A

November 07, 2007

May 01, 1996

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Johnson & Johnson Vision Care, Inc.

B29C39/02; G02C7/04; B29C31/04; B29C33/00; B29C33/20; B29C33/24; B29C33/30; B29C33/34; B29C33/40; B29C39/22; B29C39/24; B29C39/42; B29C43/02; B29C43/36; B29C65/00; B29D11/00; B29D11/02; G02B1/04; G02C13/00; B29C31/00; B29C35/08; B29C43/56; B29L11/00

JP62189122A
JP61209138A
JP5084755A
JP4046303A
JP5031738A

Hiroaki Tazawa
Konobu Kato

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