Essilor International (compagnie Generale D'optique)

Essilor International

Aude Contet

Cyril Guilloux

Farid Karioty

Soazic Mousset

Isabelle Poulain

Claude Pedrono

Bruno Amir

Agnes Ladous

Benedicte Deldalle

Björn Drobe

Benjamin Rousseau

Laurent Calixte

Cécile Petignaud

Damien Paille

Martha Hernandez-Castaneda

Helene De Rossi

Hélène De Rossi

Marie-Gaelle Froeliger

Bénédicte Deldalle

Fanny Ferre

Agnès Ladous

Bruno Doucin

Paulyn Ng Hwei Kien

Stéphanie Vialet

Cedric Goulard

Stephanie Vialet

Marie-Gaëlle Froeliger

Cédric Goulard

A method implemented by computer means of modifying an initial dioptric function of an initial ophthalmic lens surface, for manufacturing an ophthalmic lens, the method comprising: 

Method of modifying an dioptric function of an ophthalmic lens surface

Disclosed is a method for comparing first and second ophthalmic lenses, including:

Method for comparing a first ophthalmic lens with a second ophthalmic lens

A multifocal lens supply system including a multifocal lens ordering computing unit and a multifocal lens determination computing unit, for providing to a wearer a customized progressive spectacle ophthalmic lens having a customized addition Add, wherein Add=Add+corr, wherein corr is a corrective value which is the output of a function where the input is at least an individual wearer parameter value and at least an output value over the input range is different from nil, and wherein Addis a prescribed addition.

Multifocal lens supply system for providing to a wearer a customized progressive spectacle ophthalmic lens

A pair of progressive ophthalmic lenses () meets special conditions for improving binocular vision of a wearer, while avoiding discomfort for peripheral vision. A first one of the conditions relates to height values of far vision fields, intermediate vision fields and/or proximate vision fields, for indicating that the fields are different enough in height between both lenses. A second one of the conditions sets a maximum value for the relative difference in mean refractive power gradient between both lenses.

Pair of progressive ophthalmic lenses

A pair of progressive ophthalmic lenses () meets special conditions for improving binocular vision of a wearer, while avoiding discomfort for peripheral vision. A first one of the conditions sets a minimum value for the difference between nasal and temporal half-widths of far vision field and/or proximate vision field for at least one of the lens. A second one of the conditions sets a maximum value for the relative difference in mean refractive power gradient between both lenses.

A pair of progressive ophthalmic lenses () meets special conditions for improving binocular vision of a wearer, while avoiding discomfort for peripheral vision. A first one of the conditions relates to width values of far vision fields and/or proximate vision fields, for indicating that the fields are different enough in width between both lenses. A second one of the conditions sets a maximum value for the relative difference in mean refractive power gradient between both lenses.

Pair of progressive ophthamlic lenses

A system for the supply of ophthalmic lenses and related methods for providing ophthalmic lenses for enhanced experience based on right-handedness and left-handedness.

Ophthalmic lens supply system and related methods

Ophthalmic lenses and spectacles for enhanced experience due to right-handedness or left-handedness.

Ophthalmic lenses taking into account the wearer's handedness

The visual perception of a lens wearer is not only along the gaze direction, but also has a non-zero transverse extension, which is called perceptual span. Perceptual span is skewed to extend further in the reading direction, i.e., the line portion to be read next relative to the line portion that was just read. A technique is provided that determines a pair of progressive ophthalmic lenses that take such perceptual span into account.

Process for determining a pair of progressive ophthalmic lenses

A method for determining target optical functions for a pair of ophthalmic lenses is provided, the method comprising steps of: generating a first target optical function (OFT) for a first lens of the pair based at least on data relating to a first eye, generating a second target optical function (OFT) for a second lens of the pair based at least on data relating to the first eye. This method makes it possible to obtain optical functions having improved symmetry. Thus, when using the target optical functions in an optical optimization method, lenses with improved binocular properties can be obtained. The comfort of the wearer of the pair of lenses is thus improved.

Method for determining target optical functions

A process for determining a pair of personalized progressive ophthalmic lenses. and a computer program product associated to these processes. Right-handed persons and left-handed persons behave very differently when executing certain near vision tasks, such as writing on a sheet of paper. However, current lens designs do not take into account these behavior differences. The comfort of wearing a pair of ophthalmic lenses can be improved for the wearer for whom the lenses are intended by adapting his near vision according to his handedness.

A method of determining binocular performance of a pair of spectacle lenses comprises: a eyes characteristics providing step, a pair of spectacle lenses providing step, a environment providing step, a binocular performance criteria selecting step, and a binocular performance criteria determining step, wherein the at least one binocular performance criterion is selected among one or a combination of the following criteria groups consisting of central vision criteria group and/or peripheral vision criteria group.

Method for determining binocular performance of a pair of spectacle lenses

A method of determining binocular performance of a pair of spectacle lenses comprises: a eyes characteristics providing step, a pair of spectacle lenses providing step, a environment providing step, a cyclopean eye positioning step, a binocular performance criteria defining step, and a binocular performance criteria determining step, wherein the cyclopean eye position is customized.

A method for determining the value of the inset of a progressive addition lens according to a wearer comprising the steps of: providing convergence data, determining from the convergence data the inset of the progressive addition lens considering at least the convergence data and the prismatic effect of the progressive addition lens.

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Charenton le Pont, France

Aude Contet