GIESSFORMHÄLFTE UND GIESSFORM ZUR HERSTELLUNG VON KONTAKTLINSEN

A casting mold half ( 5, 5 a) for producing contact lenses comprises a mount ( 50 ) and an insert ( 51, 51 a), which is arranged at one end of the mount ( 50 ) and can be connected to the mount ( 50 ) and which has a shaping surface ( 510 ) for the shaping of the front or rear surface of the contact...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAGMANN, PETER, HOERNER, WILHELM
Format:	Patent
Sprache:	ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS 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 TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A casting mold half ( 5, 5 a) for producing contact lenses comprises a mount ( 50 ) and an insert ( 51, 51 a), which is arranged at one end of the mount ( 50 ) and can be connected to the mount ( 50 ) and which has a shaping surface ( 510 ) for the shaping of the front or rear surface of the contact lens to be produced. The insert ( 51, 51 a) consists in the region of the shaping surface ( 510 ) of a material which is permeable to the energy crosslinking the starting material of the contact lens. Finally, a mask made of a material impermeable to the energy crosslinking the starting material is provided for spatially delimiting this energy. The mask comprises a separate surround ( 512 ) made of a material impermeable to the energy crosslinking the starting material of the contact lens, which surrounds the edge region of the shaping surface ( 510 ) of the insert ( 51, 51 a).