MOLD FOR EYE LENS, ITS MANUFACTURE AND MANUFACTURE OF THE LENS USING THE MOLD

PROBLEM TO BE SOLVED: To provide a mold for an eye lens having a high shape accuracy of a low cost. SOLUTION: In the mold for an eye lens comprising a first mold 2 and a second mold 4 in combination and a molding cavity 6 of the shape formed therebetween for giving the lens to be an object; at least...

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Bibliographische Detailangaben
Hauptverfasser:	TOGO MOTONOBU, ISHIHARA KENICHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON CONTACT LENSES INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a mold for an eye lens having a high shape accuracy of a low cost. SOLUTION: In the mold for an eye lens comprising a first mold 2 and a second mold 4 in combination and a molding cavity 6 of the shape formed therebetween for giving the lens to be an object; at least one of the molds 2, 4 has a laminated mold having a base mold 8 having a sufficient rigidity and strength durable against a molding operation of the lens in the cavity 6, and a thermoplastic film 10 having a molding surface corresponding to one surface of the lens molded to cover a surface of the base mold at the cavity side and held integrally with the base mold.