Patent ID: 8002608
Filing Date: 2011-08-23
Classification: B24B,B29C,B29D,Y10S

Abstract:
1. A method for creating a mold half for making a contact lens comprising the steps of: obtaining a front tool and a back tool, wherein the front tool and the back tool are needed to create the mold half; polishing a first side of the front tool to obtain an optically critical surface, wherein the first side of the front tool creates the portion of the mold half that contacts prepolymers of a contact lens to be formed using the contact lens mold; polishing a side of the back tool, wherein the polished side of the back tool creates a portion of the mold half that does not contact the prepolymers of the contact lens to be formed using the contact lens mold; and mating the front tool and a back tool and introducing a flowable mold material between the polished sides of the front tool and the back tool, thus creating the mold half.