MULTIFOCAL DIFFRACTIVE OPHTHALMIC LENSES WITH EVENLY SPACED ECHELETTES

Certain embodiments described herein are directed to a multifocal ophthalmic lens including a base lens having a base curvature corresponding to a base power, and a diffractive structure comprising a central zone and a plurality of annular echelettes formed on a first surface of the base lens. A rad...

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Bibliographische Detailangaben

Hauptverfasser:	DAS, Kamal K, BORDBAR, Behzad
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CONTACT LENSES OPTICS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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