Essilor International (compagnie Generale D'optique)

Essilor International

Essilor International (compagnie General D'optique)

Cécile Petignaud

Benjamin Rousseau

Isabelle Poulain

Marie-Anne Berthezene

Ahmed Haddadi

Thierry Bonnin

Gildas Marin

Laurent Calixte

Fabien Divo

Claude Pedrono

Aude Contet

Bruno Amir

Soazic Mousset

Nacer Lakhchaf

Agnes Ladous

Sebastien Gayat

Loic Levraud

Bénédicte Deldalle

Konogan Baranton

Guilhem Escalier

Bruno Fermigier

Jean Sahler

Marius Peloux

Sarah Marie

Martha Hernandez-Castaneda

Philippe Pinault

Bruno Decreton

Pauline Colas

Martha Hernandez

Jean-Luc Perrin

Cécile Pietri

Amandine Debieuvre

Laurent Roussel

Marie-Gaelle Froeliger

Thierry Laloux

Valérie Parmentier

Gilles Garcin

Charles Lebrun

Bérangère Donetti

Alvin François

Mathieu Guillot

Agnès Ladous

Berangere Donetti

Sébastien Gayat

Loïc Levraud

Beanjamin Rousseau

Disclosed is a method for determining an optical function of a progressive ophthalmic lens for a wearer, including: providing a prescription of the wearer; providing wearing data including at least a numerical parameter; providing by at least one processor a set of predefined optical functions including at least a first predefined optical function adapted to the prescription of the wearer and to a first predefined wearing parameter and a second predefined optical function for the prescription of the wearer and to at least a second predefined wearing data parameter, the second predefined optical function being different from the first; and determining an optical function of the progressive ophthalmic lens, so: when the wearing data parameter≥a threshold value, the optical function of the lens=first predefined optical function, and when the wearing data parameter<the threshold value, the optical function=the second predefined optical function.

Methods and systems for optimizing an optical function of a progressive ophthalmic lens under specific wearing conditions

An optical device including an active programmable lens having an adjustable optical power depending on a prescription of a wearer and being relative to a vision distance and/or direction of an eye of the wearer, a vision sensor adapted to measure vision data relating to the vision distance and/or direction of the eye, and an optical power controller that includes a memory storing computer executable instructions and adapted to store measured vision data and two predetermined optical power states corresponding to an optical power relative to a range of vision distance and/or direction of the eye, and a processor for executing the stored computer executable instructions, which include instructions for adjusting the adjustable optical power between the predetermined optical power states with a resolution smaller than or equal to 0.25 D when the vision data passes from one range of vision distance and/or direction to another.

Optical device adapted to be worn by a wearer

Disclosed is a method for measuring data for fitting an ophthalmic lens in a frame for a individual, including the following steps: a) placing the individual in a natural posture; b) displaying a visual target with adjustable position in the field of view of the individual; c) having the individual equipped with the frame adjust the position of the visual target in order to place it straight ahead from him; d) determining the intersection, with a surface representative of the lens once placed in the frame, of the line of sight of the individual looking at the visual target with its adjusted position and determining the data based on the intersection determined.

Method and device for measuring data for fitting an ophthalmic lens in a frame for a given individual

A method for determining a pupillary distance of an individual, includes the following steps: &#x2014;displaying an object on a screen located in front of the individual, the displayed object being positioned at a location in front of one eye of the individual; &#x2014;instructing the individual to look with at least the eye at the displayed object; &#x2014;acquiring at least an image of a part of the body of the individual including the eye; &#x2014;determining the location of a plurality of specific features in the acquired image, one of the specific features being a pupil of the eye of the individual; and &#x2014;calculating the pupillary distance based on the location of the plurality of specific features. A corresponding system is also described.

Method and system for determining a pupillary distance of an individual

A method for customizing a head mounted device adapted to generate a virtual image for a wearer, the method comprises: obtaining a 3D eye pupil position of the wearer in a reference frame and corresponding to a predetermined gaze direction, and customizing the head-mounted device based on the 3D eye pupil position so that the position of a focus area (EMB) at least partly coincides with the position of the eye pupil in the predetermined gaze direction, wherein customizing the head-mounted device comprises controlling a recording of a holographic mirror based on the 3D eye pupil position in the reference frame.

Method for customizing a head mounted device adapted to generate a virtual image

Disclosed is a method for measuring the refraction of an individual by a refraction measuring appliance, including: an initial step of determining at least one initial value of a visuo-postural parameter of the individual; a step of processing the initial value in order to deduce at least one initial value of a regulating parameter of the refraction measuring appliance, the regulating parameter being associated with the visuo-postural parameter; a step of regulating the refraction measuring appliance according to the initial value of the regulating parameter; and a step of measuring the refraction of the individual by the measuring appliance regulated in this way. Also disclosed is a method for the optical design of an ophthalmic lens, and to a pair of glasses including such a lens.

Method and system for measuring refraction, method for the optical design of an ophthalmic lens, and pair of glasses comprising such an ophthalmic lens

A method for determining a pair of ophthalmic lenses adapted to a wearer, the method including: a wearer data providing, during which wearer data including at least an indication of the distortion dominant eye of the wearer and an indication of the prescription of the wearer are provided; an ophthalmic lenses determining, during which a pair of ophthalmic lenses adapted to the wearer is determined based at least on the wearer data.

Method for determining a pair of ophthalmic lenses

The invention relates to a method for checking the correct assembly of a device consisting of a frame and of two corrective ophthalmic lenses. The main feature of a method according to the invention is that it includes the following steps: an initial step of determining at least one parameter which makes it possible to position the lenses in the frame relative to the face; a subsequent step of acquiring at least one image of the face of said wearer with said device, which shows centering and horizontal level marks; a step of comparing said at least one parameter determined during said initial step with the corresponding parameter deduced from said at least one image; and a step of making a decision regarding the correct assembly of the device.

Method for checking the correct assembly of a frame and corrective lenses

A quality control method for optometric measurements includes the following steps: (a) recording, via computer, a first record () that includes at least one first value of a first identifier (), enabling identification of a glasses wearer (), and at least one other value of another identifier () enabling identification of an optometric apparatus () on a first optometric measuring site (); (b) carrying out at least one optometric measurement () of the wearer; (c) sending, to a second site (), a digital measurement data set () including the optometric measurement result from step (b), the digital data set being linked, via computer, to the first record; and (d) digitally processing the optometric measurement result from the first record () on the basis of a digital data reference system () and the values of the respective identifiers of the glasses wearer and the optometric apparatus of the first record.

Quality control method for optometric measurements

A method for determining at least one optical conception parameter for a progressive ophthalmic lens intended to equip a frame of a wearer, depending on the visual behavior of the latter. The method comprises the following steps: a) collecting a plurality of behavioral measurements relating to a plurality of gaze directions and/or positions of the wearer during a visual task; b) statistically processing said plurality of behavioral measurements in order to determine a zone of use of the area of an eyeglass fitted in said frame, said zone of use being representative of a statistical spatial distribution of said plurality of behavioral measurements; and c) determining at least one optical conception parameter for said progressive ophthalmic lens depending on a spatial extent and/or position of the zone of use.

Method for determining at least one optical design parameter for a progressive ophthalmic lens

A method for determining at least one value of a customization parameter for a visual compensation device includes the following steps: a) a user () equipped with an electronic terminal () captures at least one image or video sequence; b) telecommunicating the at least one image to a remote-support center (); c) processing the at least one image in order to derive therefrom an instruction to correct or validate the captured image or video sequence; d) telecommunicating the correction or validation instruction from the remote-assistance center () to the terminal () of the user (); e) displaying or emitting an audio or video message using the terminal; f) repeating the preceding steps until a validated image or video sequence is obtained; g) determining a value of the at least one customization parameter.

Method for determining at least one value of a parameter for customising a visual compensation device

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 for calculating or optimizing an ophthalmic lens design comprising the steps of providing a given ophthalmic lens design and assessing the given design by a computer comprising a media suitable for storing electronic instructions.

Method for assessing an optical feature of an ophthalmic lens design

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 to improve the receptiveness of a person to a training session of the human visual system where at least one visual stimuli arrangement is provided to the person and where means are provided so that the high order aberrations of the system consisting of the combination of said means and the eye of the person is lower than the high order aberrations of the eye of the person. The method to improve deficiencies, inefficiencies or both in neuronal interaction comprising preceding improvement method. A system such as a lens system, an artificial pupil or a clipable lens adapted for said methods. Related computer program product and computer-readable medium.

Systems and methods for improving the receptiveness of a person to a training session for improving visual perception

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Charenton-le-Pont, France

Cécile Petignaud