Process for producing contact lens

The contact lens of the present invention is produced by a process comprising a step of irradiating a transparent polymeric material with charged particles and a step of applying an etching treatment to the resulting material to form microfine holes therein along the tracks of the charged particles.

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Bibliographische Detailangaben
Hauptverfasser:	SAWAMOTO, TAKEYUKI, IKUSHIMA, AKIRA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONTACT LENSES CUTTING CUTTING-OUT HAND CUTTING TOOLS OPTICS PERFORATING PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE PUNCHING SEVERING SEVERING BY MEANS OTHER THAN CUTTING SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECTACLES STAMPING-OUT SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The contact lens of the present invention is produced by a process comprising a step of irradiating a transparent polymeric material with charged particles and a step of applying an etching treatment to the resulting material to form microfine holes therein along the tracks of the charged particles.