Progressive power lens

A progressive power eyeglass lens is disclosed. The lens is particularly suitable for close-range work while facilitating distinct vision up to a specific distance that is substantially separated from the close-view distance. The lens also provides a wide distinct-vision area in the near-vision regi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	UMEDA, TOSHIAKI
Format:	Patent
Sprache:	eng
Schlagworte:	CONTACT LENSES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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