METHOD FOR MANUFACTURING AN OPHTHALMIC LENS

METHOD FOR MANUFACTURING AN OPHTHALMIC LENS

A method for manufacturing an ophthalmic lens including selecting a base of polymeric material and applying a multiple layer structure coating. The coating is selected by designating an interphase, a first layer (of 91-169 nm) with a refraction index higher than 1.8, a second layer (of 128-248 nm) w...

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Hauptverfasser: DÜRSTELER LÓPEZ, Juan Carlos, RIGATO, Franco, CASANELLAS PEÑALVER, Glòria, VILAJOANA MAS, Antoni, ARTÚS COLOMER, Pau
Format: Patent
Sprache:eng
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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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creator DÜRSTELER LÓPEZ, Juan Carlos
RIGATO, Franco
CASANELLAS PEÑALVER, Glòria
VILAJOANA MAS, Antoni
ARTÚS COLOMER, Pau
description A method for manufacturing an ophthalmic lens including selecting a base of polymeric material and applying a multiple layer structure coating. The coating is selected by designating an interphase, a first layer (of 91-169 nm) with a refraction index higher than 1.8, a second layer (of 128-248 nm) with a refraction index lower than 1.65, a third layer (of 73-159 nm) with a refraction index higher than 1.8 and a fourth layer (of 40-138 nm) with a refraction index lower than 1.8. A total thickness of the multiple layer structure is less than 600 nm. The structure has intermediate layer(s) with intermediate refraction indices, wherein a doublet of two adjacent layers that fulfil the thicknesses above is replaced by a triplet so that the thickness and an optical thickness of the triplet differ from those of the doublet by less than 5%, respectively.
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subjects CONTACT LENSES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
title METHOD FOR MANUFACTURING AN OPHTHALMIC LENS
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