OPHTHALMIC LENS COMPRISING A LAYER HAVING A VARIABLE REFRACTIVE INDEX

An ophthalmic lens (10) comprises an optical component (1) and a layer (2) placed on a face of the optical component (1a). The layer (2) has a variable refractive index and is structured so that a second order derivative of the index with regard to a linear spatial coordinate along the face of the o...

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Main Authors PETIGNAUD, Cécile, BONNIN, Thierry
Format Patent
LanguageEnglish
French
German
Published 02.12.2020
Subjects
CONTACT LENSES
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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Abstract An ophthalmic lens (10) comprises an optical component (1) and a layer (2) placed on a face of the optical component (1a). The layer (2) has a variable refractive index and is structured so that a second order derivative of the index with regard to a linear spatial coordinate along the face of the optical component (1a) is greater than a fixed threshold. The layer (2) makes it possible to alter the optical power and astigmatism of the lens (10) with regard to corresponding values only relative to the optical component (1). In the event that the ophthalmic lens (10) is a progressive lens, the layer (2) makes it possible to change an addition, a length of progression and/or a design of the progressive lens.
AbstractList An ophthalmic lens (10) comprises an optical component (1) and a layer (2) placed on a face of the optical component (1a). The layer (2) has a variable refractive index and is structured so that a second order derivative of the index with regard to a linear spatial coordinate along the face of the optical component (1a) is greater than a fixed threshold. The layer (2) makes it possible to alter the optical power and astigmatism of the lens (10) with regard to corresponding values only relative to the optical component (1). In the event that the ophthalmic lens (10) is a progressive lens, the layer (2) makes it possible to change an addition, a length of progression and/or a design of the progressive lens.
Author PETIGNAUD, Cécile
BONNIN, Thierry
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DocumentTitleAlternate OPHTHALMISCHE LINSE MIT EINER SCHICHT MIT VERÄNDERLICHEM BRECHUNGSINDEX
VERRE OPHTALMIQUE COMPRENANT UNE COUCHE D'INDICE DE REFRACTION VARIABLE
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Snippet An ophthalmic lens (10) comprises an optical component (1) and a layer (2) placed on a face of the optical component (1a). The layer (2) has a variable...
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SubjectTerms CONTACT LENSES
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
Title OPHTHALMIC LENS COMPRISING A LAYER HAVING A VARIABLE REFRACTIVE INDEX
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