LENTE A CONTATTO MORBIDA PERFORATA E METODO DI FABBRICAZIONE DELLA STESSA

LENTE A CONTATTO MORBIDA PERFORATA E METODO DI FABBRICAZIONE DELLA STESSA

A perforated soft contact lens which has at least one perforated formed inside the optical zone of lens, i.e. in the distance 0 to 3.5 mm from the lens center. It is manufactured by placing the lens in a swollen state with its inner surface on an elastic base and pressing a punch perpendicularly to...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: WICHTERLE OTTO
Format: Patent
Sprache:ita
Schlagworte:
CONTACT LENSES
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A perforated soft contact lens which has at least one perforated formed inside the optical zone of lens, i.e. in the distance 0 to 3.5 mm from the lens center. It is manufactured by placing the lens in a swollen state with its inner surface on an elastic base and pressing a punch perpendicularly to the outer surface. Further possible method of manufacturing consists in sticking the soft hydrophilic lens on a hard base, drying and then drilling the openings, advantageously to the first contact of a drill with the base.