Patent ID: 7695272

Claim:
A device for producing a polymerizable synthetic material optical lens, comprising: a closure member ( 12 ) that is adapted to grip two molding shells ( 14 A, 14 B) circumferentially to define a molding cavity ( 15 ) in conjunction with said shells ( 14 A, 14 B), said closure member ( 12 ) including a synthetic material wall ( 123 ) adapted to come into contact with said molding shells ( 14 A, 14 B) and said closure member ( 12 ) incorporating a molding material introduction passage ( 125 ) discharging into the molding cavity ( 15 ) through a casting opening ( 126 ); wherein said closure member ( 12 ) includes a seal ( 40 ) that forms said contact wall ( 123 ) and said introduction passage ( 125 ), which seal ( 40 ) is formed of an elastomer material and of a rigid insert ( 43 ) at least part of which has said elastomer material molded over it, said introduction passage ( 125 ) being inside said insert ( 43 ), and said insert ( 43 ) has an internal surface over at least a portion of which the elastomer material is molded.