Essilor International

Essilor International (compagnie Generale D'optique)

Sarah Marie

Thierry Bonnin

Ahmed Haddadi

Anne-Catherine Scherlen

Benjamin Rousseau

Laurent Calixte

Björn Drobe

Konogan Baranton

Gildas Marin

Isabelle Poulain

Guilhem Escalier

Coralie Barrau

Aude Bouchier

Juliette Wierzbicki

Cécile Petignaud

Renaud Moliton

Damien Paille

Martha Hernandez-Castaneda

Sylvain Chene

Melanie Heslouis

Hélène De Rossi

Cédric Buchon

Nacer Lakhchaf

Amandine Debieuvre

Marie Dubail

Adèle Longo

Stéphane Perrot

Loïc Baillon

Valerie Jolivet

Elise Poletto

Camille Ehrismann

Mélanie Heslouis

Susana Montecelo

Florian Caleff

Valérie Jolivet

The invention provides a method for determining at least one filter for a transparent support, the method comprising the following steps: —determining a quantity representative of a light sensitivity threshold of the user; —determining, for each light environment among a group of light environments, an index representative of the level of protection required by the user; —determining a score for each light environment among the group of light environments () and for each filter among a group of filters, said score being representative of the capacity of the filter to reach the level of protection required by the user, determining at least one filter among the group of filters based on the scores of said at least one filter in a plurality of light environments () among the group of light environments.

Method for determining a filter for a transparent support based on a determined individual light sensitivity

Disclosed is a binocular optoelectronic device wearable by a user for measuring a light sensitivity threshold of the user, including: a diffuser configured to face eyes of the user; at least one light source for emitting light toward the diffuser. The diffuser includes predetermined parameters allowing to provide a quasi-homogeneous light diffusion to at least one eye of the user from light emitted by the at least one light source.

Wearable binocular optoelectronic device for measuring light sensitivity threshold of a user

The invention relates to a method for determining a filter for an ophthalmic lens intended for being placed in front of the eye wearer, said filter being capable of improving or maintaining the visual comfort and/or the visual performance of said wearer. According to the invention, this method includes:

Method for determining a filter for an ophthalmic lens as a function of a quantity representing a dynamic sensitivity of the eye of a wearer to a variation in a luminous flux

A method for determining an optical system of a personalized progressive lens for a given wearer including: a) providing a mean direction of gaze determined for the wearer in a reference frame tied to the head of the wearer; b) determining a target value for at least one optical design parameter as a function of the mean direction of gaze determined in a); c) calculating the optical system of the progressive lens by an optical optimization procedure on the basis of target values, wherein the target value of each optical design parameter as a function of the mean direction of gaze determined in b) is a target value.

Method for determining an optical system of a progressive lens

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 optical design of a pair of ophthalmic lenses for correcting spherical and cylindrical refractive errors of the eyes of a wearer, including a step of defining the need for spherical and cylindrical correction of the wearer for various viewing distances, and a step of determining the spherical and cylindrical power of the ophthalmic lenses at viewing points with various proximities, in accordance with the correction needs of the wearer. The power of at least one of the two ophthalmic lenses is determined such as to limit the deviation obtained therebetween upon adding equivalent spherical power between the viewing points with various proximities and/or varying the cylindrical power vector between the viewing points with various proximities. Also disclosed is a pair of ophthalmic lenses designed according to such a method.

Method for optical design of a pair of ophthalmic lenses and pair of ophthalmic lenses thus obtained

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

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 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.

A method for providing a personalized optical system for a wearer wherein the optical system characterizes a spectacle ophthalmic lens comprising the following steps: a) providing a visual performance level (VPL) value of at least one eye of the wearer; b) providing a set of rules linking at least the visual performance level of step a) with at least one optical criterion chosen among one or both of the two following optical criteria groups consisting of central vision optical criterion (CVOC) group and peripheral vision optical criterion (PVOC) group; c) calculating the physical and geometrical parameters of the personalized optical system or selecting the personalized optical system in an optical systems data base comprising a plurality of optical systems, so that to meet the set of rules of step b) according to the visual performance level data provided in step a).

Method for providing a personalized spectacle lens optical system for a wearer

The present invention relates to a display system for stereoscopic viewing, the system comprising a binocular viewing device, information content, and a display source. The display system is remarkable in that it further comprises electronic components for implementing pieces of software for optimizing the binocular viewing device, the information content, and the display source, said pieces of optimization software together forming a loop for managing various parameters. The wearer of said device can thus view the information content via the binocular viewing device under conditions that are best adapted to the wearer's physiology.

Display system for stereoscopic viewing implementing software for optimization of the system

Growing community of inventors

Charenton-le-Pont, France

Sarah Marie