Essilor International (compagnie Generale D'optique)

Essilor International

Essilor International Cie Generale D'optique

Essilor International (compagnie General D'optique)

Ahmed Haddadi

Thierry Bonnin

Konogan Baranton

Sarah Marie

Fabien Divo

Benjamin Rousseau

Isabelle Poulain

Herve Jouffroy

Guilhem Escalier

Cécile Petignaud

Jean Delzers

Marie-Anne Berthezene

Cedric Lemaire

Pascal Daboudet

Sebastien Gayat

Loic Levraud

Damien Paille

Philippe Pinault

Alain Chansavoir

Soazic Mousset

Cedric Begon

Cédric Lemaire

Philippe Clara

Melanie Tessieres

Juliette Wierzbicki

Bastien Feret

Jean-Claude Hennequin

Mélanie Tessieres

Christophe Condat

Patricia Koh

Eric Leonard

Bernard Cousyn

Nicholas Giraud

Helene Sottocasa

Richard Grisel

Christian Ducarouge

Francisco Briegas

Manuel Gallardo

Sean Mahoney

Gerard Poirrier

Patrice Szymanski

Sylvie Mouchon

Celine Torracinta

Christine Jouvanceau

Deborah Talbot

Sébastien Gayat

Loïc Levraud

Beanjamin Rousseau

Hervé Jouffroy

Valérie Gillet

Fouad Amghar

A method for fitting an actual predetermined glasses frame, selected by a given wearer, for use thereof by the wearer, includes the following steps: the head of the wearer is at least partially modelled, in at least one reference system, with at least one model of part of the nose and one model of part of the ears; simulating the positioning of the frame on the head of the wearer is carried out, in the model of the head of the wearer, by placing the corresponding areas of the frame, or a model of the latter, one over the other; and on the basis of placing these one over the other, the necessary change in shape of the actual predetermined frame is determined in order to achieve a fitting of the frame on the head of the wearer in accordance with at least one predetermined fitting criterion.

Method for fitting a predetermined glasses frame for the use thereof by a given wearer

Disclosed is a method for evaluating an index of exposure to ultraviolet radiation of an eye of a wearer equipped with spectacles including at least one eyeglass, including the following steps: &#x2014;determining the area of a portion of the back face of the eyeglass, which portion is directly exposed to exterior radiation when the wearer is wearing the spectacles; &#x2014;determining a value representative of the exposure to ultraviolet radiation of at least one environment frequented by the wearer; and &#x2014;determining the index of exposure depending on the determined area and the determined value. An associated system is also described.

Method for evaluating an index of exposure of an eye to ultraviolet radiation and associated system

A method for aiding the choice, by a future wearer, of a piece of visual equipment including at least one ophthalmic lens and a spectacle frame, includes the following steps: receiving at least first and second data items representative of first and second distances measured between an eye of the wearer and the frame; determining a first width and a second width, associated with the first data item and the second data item, respectively, by comparing, for each data item, the lower and upper limits of a range of values associated with the distance represented by the data item in question; and constructing an image including a first portion having the first width and a second portion having the second width, the first portion and the second portion being juxtaposed in the image. A method allowing a future wearer to select such a piece of equipment is also described.

Method and device for aiding the choice of a piece of equipment comprising at least one ophthalmic lens and a frame, method and device for selecting such a piece of equipment

The invention relates to a device for determining a writing or reading mode of a person wearing spectacles including a frame and two lenses, the device comprising, according to the invention, means for measuring the distance between an element of the frame or the head and a working plane, means for measuring an angle of inclination (&#x3b1;) of a median plane of the two lenses relative to the vertical in a vertical median plane (P) of the head perpendicular to the median plane, and control means suitable for comparing the measured angle of inclination (&#x3b1;) with a set angle of inclination and for determining a reading mode or a writing mode of the person according to the comparison, the reading mode being associated with a predetermined set reading distance, and the writing mode being associated with a predetermined set writing distance.

Device and method for determining a writing or reading mode

The invention relates to a method () for correcting an individual behavior for using a pair of spectacles in optimized conditions, said individual wearing frame (). According to the invention said method comprises the following steps: &#x2014;a step () of determining parameters that characterize the behavioral conditions of the individual using correcting means securely fastened to the frame of the frame () in the preceding various situations for a set time; &#x2014;a step () of comparing said parameters with preset reference values; and &#x2014;a step () of correcting the behavior of the individual using detecting means () that are securely fastened to the said frame (), and that trigger when the difference between a parameter and the corresponding reference value diverges beyond a preset threshold value.

Method for correcting a wearer behaviour for using a pair of spectacles in optimized conditions

A method and an associated system for ordering a spectacle lens by a wearer (), said method involving steps of: selecting (S) a spectacle frame by the wearer (); capturing (S) a picture showing partially a face of said wearer () wearing the selected spectacle frame, at a picture capturing side () so as a position of said spectacle frame with respect to the wearer face is extractable from said picture; obtaining (S) a three dimensional shape of the selected frame at said picture processing side (); processing (S) said picture for obtaining the position of said spectacle frame with respect to the wearer face at said picture processing side (); and ordering (S) to a lens manufacturing side () spectacle lens complying with said frame shape, said extracted frame position, and wearer data, wherein said wearer data comprises at least a prescription for the wearer ().

Method for ordering a spectacle lens and associated system

The invention relates to a referencing device () intended to be fixed to an eyeglass frame in order to spatially reference said frame, said device () having a transverse bar (), a central extension (), two lateral markers () and a central marker (), each marker () consisting of a light area () and a darker area (). The main characteristic of a clip according to the invention is that it comprises at least one mobile fastening member () which is able to move along at least one slide () of the bar ().

Locating device intended to be fixed to a spectacle frame

An apparatus for determining the diameter of an ophthalmic compensation lens to be mounted onto a spectacle frame, or for controlling the mounting of an ophthalmic compensation lens onto the frame includes: an electronic tablet having a screen; a spectacle frame support having an opening and being suitable for holding the glasses frame in a predetermined position, one surface of the spectacle frame being placed near the surface of the screen; elements for storing at least one graphic image including at least one graphic reference mark associated with the ophthalmic compensation lens and/or with the patient who is to wear the ophthalmic compensation lens mounted onto the frame; elements intended for processing the image and capable of generating a projected image; elements for displaying the projected image onto the screen; and elements for aligning the frame with regards to the projected image displayed on the screen.

Apparatus, accessory, and method for determining the diameter of a lens to be mounted onto a glasses frame, or for controlling the mounting of a glasses lens onto a glasses frame

A method of visual testing of an individual () includes the steps of: a) placing the individual at a predetermined observation distance (D) from a display surface () at which the individual observes, with a natural head carriage, the display surface; b) displaying, on the display surface, a visual test including at least one test image () in a visual field of the individual; and c) determining, on the display surface, a boundary () of zones of optimal/degraded vision of the test image by the individual in the configuration resulting from steps a) and b), the boundary delimiting respectively a zone of optimal vision (A) and a zone of degraded vision (B) of the visual field, for which zones the individual indicates that he sees the test image of the visual test in an optimal manner, respectively in a degraded manner.

Method of visual testing of an individual and associated device

Disclosed is a method of determining at least one visual behavior parameter of an individual, including: determination of the position of the center of rotation of at least one eye of the individual in a first reference frame tied to the head of the individual; capture, with the aid of an image capture device, of at least one image of at least one part of the body of the individual in a second reference frame, determination of the position and the orientation, in the second reference frame, of the first reference frame tied to the head of the individual, by searching for the position, in the second reference frame of a distinctive zone of the part of the body of the individual; determination of the position of the center of rotation of the eye in the second reference frame; and determination of the sought-after visual behavior parameter.

Method of determining at least one parameter of visual behaviour of an individual

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 behavioral, postural or geometric-morphological characteristic of a person wearing spectacles, the method includes the steps of: a) illuminating the wearer's head using an infrared light source (), b) acquiring an image of the wearer's head using an infrared image sensor (); c) in the image, locating reflections from the infrared light surface, reflected by the two lenses of the spectacles; and d) using a computation unit () to deduce the required characteristic as a function of the positions of the reflections in the image.

Method for determining a behavioural, postural or geometric-morphological characteristic of a person wearing spectacles

A method for determining at least one optical design parameter for a progressive ophthalmic lens intended to be fitted in a frame of a wearer, depending on the wearer's visual behaviour, includes: a) placing the wearer in a situation in which he carries out a visual task at a first working distance; b) during this task, determining at least two gaze directions of the wearer at this first working distance in a frame of reference of the wearer's head; c) determining a relative position of a surface related to the frame or to an ophthalmic lens intended to be fitted in the frame; d) determining for each gaze direction at the first working distance the intersection between this gaze direction and the surface so as to establish a map of these points of intersection on this surface; and e) deducing the sought-after optical design parameter from this map.

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

A method is provided for determining the dominant eye of a person using equipment designed to acquire at least one image of the face of the person, then process the image, and finally return information enabling the person to know which eye is the dominant eye thereof. The method uses a sighting device that is identifiable and locatable in relation to the equipment, with the viewing being carried out through a window with both eyes open. The size of the window is such that it does not allow the person to see said target with both eyes at the same time. The equipment acquires at least one image for viewing the position of both eyes of the person, processing the image by performing calculations while taking into account the position of a central point located between both eyes, the position of the target and the position of the window.

Method for determining the dominant eye

An apparatus for implementing a method for determining the dominant eye of a spectacle wearer (), includes a target (), an element () for occulting at least one eye, and a sighting device () equipped with an optical window (). The principal feature of the apparatus is that the sighting device () includes an electronic sensor making it possible to identify the direction of movement of the sighting device (), during the method during various steps of viewing the target ().

Apparatus for determining the dominant eye

Growing community of inventors

Charenton-le-Pont, France

Ahmed Haddadi