FRAME OF SPECTACLES

PURPOSE:To execute easily replacement of a lens by forming a ring-like lens frame whose lower half is notched, by a magnetic mateial, sticking a band- like magnet to the upper half of the lens, and holding the lens by the frame by magnetic force. CONSTITUTION:Ring-like lens frames 4, 4' whose l...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NISHIMURA TAKASHI, YAMAMOTO KATSUZOU
Format:	Patent
Sprache:	eng
Schlagworte:	CONTACT LENSES OPTICS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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Beschreibung
Zusammenfassung:	PURPOSE:To execute easily replacement of a lens by forming a ring-like lens frame whose lower half is notched, by a magnetic mateial, sticking a band- like magnet to the upper half of the lens, and holding the lens by the frame by magnetic force. CONSTITUTION:Ring-like lens frames 4, 4' whose lower half circumferential part is notched are formed by a magnetic material, and on its inside circumferential face, a lens fitting groove 7 is provided by carving. On the other hand, a band- like magnet 10 is stuck to the upper half circumferential part of lenses 9, 9'. When attaching and detaching the lens by this contitution, they are executed by moving the lenses 9, 9' in the upper and lower directions against the lens frames 4, 4' and fitting and detaching the magnet 10 to and from the fitting groove 7. Therefore, replacement of the lens can be executed easily, and it is unnecessary to possess several kinds of spectacles which are different in a degree of a lens.