Essilor International

Essilor International (compagnie Generale D'optique)

Sorbonne Université

Konogan Baranton

Benjamin Rousseau

Guilhem Escalier

Ahmed Haddadi

Delphine Tranvouez-Bernardin

Gildas Marin

Isabelle Poulain

Bruno Fermigier

Martha Hernandez-Castaneda

Sébastien Fricker

Björn Drobe

Matthieu Guillot

Guillaume Giraudet

Fabien Divo

Jean-Pierre Chauveau

Jean Sahler

Anne-Catherine Scherlen

Thierry Bonnin

Michel Nauche

Laurent Calixte

Aude Bouchier

Denis Rousseau

Cécile Petignaud

Claude Pedrono

Marius Peloux

Damien Paille

Marie Lore

Sarah Marie

Gerhard Keller

Stéphane Boutinon

Guillaume Broutin

Paul Gil

Cedric Lemaire

Vincent Roptin

Cedric Begon

Martha Hernandez

Cédric Lemaire

Estelle Netter

Aurélie Le Cain

Pedro Ourives

Samy Hamlaoui

Angelo Arleo

Denis Sheynikhovich

Herve Jouffroy

David Rio

Bernard Brechemier

Amandine Debieuvre

Juliette Wierzbicki

Sebastien Gayat

Delphine Tranvouez-bernardin

Nisha Singh

Luis Ricardo Castro Martinez

Charles Lebrun

Delphine Bernardin

Tianyi Li

Guillaume Tatur

Patrice Szymanski

Gerard Poirrier

Sebastien Evain

John Carrier

Sean Mahoney

Marcia Becu

Dikai Niu

Richard Carrillo

Luca Leonardo Bologna

Youssouf Cherifi

Sébastien Gayat

Hervé Jouffroy

Valérie Gillet

Fouad Amghar

Sébastien Evain

A lens element intended to be worn in front of an eye of a wearer having at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some of the optical elements of the first set and the second set are disposed in a mutual relationship in such a way that, for at least one gaze direction, a first and a second cumulative optical effect are provided at the same time for respective at least first and second incoming light beams.

Lens element

A lens element intended to be worn in front of an eye of a wearer including at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some optical elements of the second set are disposed with respect to the optical elements of the first set of the lens element to provide according to a respective first and a second gaze direction on different zones of the retina of the eye of the wearer distinct cumulative optical effects.

A method for determining a position variation of an eyewear equipment worn by a wearer includes obtaining reference data representing a reference position of an eyewear equipment worn by the wearer, the eyewear equipment including at least one ophthalmic lens and a frame on which the at least one ophthalmic lens is mounted, determining at least one reference position parameter indicative of a reference position of the eyewear equipment on the face of the wearer based on the reference data, obtaining current data representing a current position of the eyewear equipment worn by the wearer, determining at least one current position parameter indicative of a current position of the eyewear equipment in front of the eyes of the wearer based on the current data, and comparing the reference and current positions parameters to determine a position variation of the eyewear equipment worn by the wearer.

Position variations of the lenses of an eyewear equipment

A method for determining a component of an ophthalmic equipment, the method including acquiring a set of parameter values relating to the given wearer, processing the acquired set of parameter values to infer a group, the given wearer belonging to the inferred group and the inferred group belongs to a plurality of pre-established groups, the pre-established groups being elaborated based on respective sets of parameter values of a plurality of reference wearers. The method further including determining, based on the inferred group, at least a feature enabling to determine a component of an ophthalmic equipment of the given wearer, and determining a component of an ophthalmic equipment to be used by the wearer based on the at least a determined feature, each set of parameters values of the plurality of reference wearers including parameter values belonging to at least two distinct categories.

Method for determining a component of an ophthalmic equipment and associated system

This method for predicting at least one eye gazing parameter of a person wearing visual equipment includes steps of: measuring data of at least two individuals wearing visual equipment, such data including at least head motion parameters and eye gazing parameters of the individuals; measuring head motion parameters of the person in real-life conditions; comparing the head motion parameters of the person with the head motion parameters of the at least two individuals; and predicting the at least one eye gazing parameter of the person at least on the basis of the results of the comparing step and of the eye gazing parameters of the at least two individuals.

Method and system for predicting an eye gazing parameter and an associated method for recommending visual equipment

A device for simulating a behavior of a mammal in an environment by a virtual mammal includes a mobile head and at least one mobile eye including a first input for successive data representative of eye poses, a second input for mobility action instructions, a memory for storing information on the environment and on stabilization constraints, at least one processor assessing a current part of the environment and recording information on said current part, triggering successive movements of the head and of the eye(s) in function of said mobility action, controlling a dynamic adjustment of the successive movements of the eye(s) with respect to the successive movements of the head in function of the successive data and by using the stabilization constraints. The device further comprises a third input for training data representative of a training movement sequence of the head and the eye(s) associated with a training environment.

Device for simulating a physiological behaviour of a mammal using a virtual mammal, process and computer program

Disclosed is a method including the steps of: a) illuminating a pupil of the eye of a subject by a light source; b) acquiring at least one picture of the pupil including an image of the reflection of the light source on the retina of the eye, by means of an image-capture apparatus; and c) and determining a refraction feature of the eye from at least a geometrical feature, a positional feature, or an intensity distribution of the image of the reflection of the light source. Optical distances between the pupil and, respectively, the light source and the image-capture apparatus, are different. An associated device is also described.

Method and device for determining a refraction feature of an eye of a subject

A system, method, and computer readable medium for determining at least one feature of at least one lens mounted in a spectacle frame. The system includes a non-point light pattern generating device configured to generate a predefined non-point light pattern, and arranged to have the predefined non-point light pattern reflected on the at least one lens, an image acquisition device configured to acquire an image of the spectacle frame including an image of the reflected non-point light pattern, and a processing unit configured to determine at least the contour of the at least one lens in function of at least one feature of the image of the reflected non-point light pattern.

System and method for determining at least one feature of at least one lens mounted in a spectacle frame

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

The invention relates to an optical device () adapted to be worn by a wearer comprising at least: &#x2014;a programmable lens () having an adjustable optical function and extending between at least one eye of the wearer and the real world scene when the optical device is worn by the wearer, &#x2014;an optical function controller () comprising &#x2014;a memory () storing at least computer executable instructions; and &#x2014;a processor () for executing the stored computer executable instructions so as to control the optical function of the programmable lens (), wherein the computer executable instructions comprise instructions for adjusting the optical function of the programmable lens () over a period of time determined so that the wearer does not perceive the adjustment of the optical function.

Disclosed is a method for determining an eye parameter of a user of a display device, the eye parameter relating to a dioptric parameter of an ophthalmic lens to be provided to the user, the method including: a display device providing step, during which a binocular display device is provided to the user,&#x2014;an image display step, during which an image is displayed to the user when using the display device; a display parameter modifying step, during which at least one parameter of the display device is modified so as to modify the virtual display distance of the perceived image, wherein the display parameter modifying step is repeated until image subjective quality of the perceived image is perceived by the user as optimal; and an eye parameter determining step during which an eye parameter is determined based on the parameter of the display device.

Method of determining an eye parameter of a user of a display device

A method for determining an ophthalmic lens adapted to a wearer, including: providing wearer data including at least an indication of a prescription of the wearer; providing a locomotion scenario including at least an input locomotion parameter and visual environment data indicative of a visual environment, the locomotion parameter including at least movement data indicative of at least translation movements of the wearer's head; providing an output parameter of a locomotion parameter of the wearer or an optical parameter of the ophthalmic lens having an impact on a locomotion parameter of the wearer; determining an ophthalmic lens adapted to the wearer based at least on the wearer data to have the output parameter as close as possible to the target value of the output parameter when carrying out the locomotion scenario using the ophthalmic lens, wherein the output parameter is retinal flow of the wearer.

Method for determining an ophthalmic lens adapted to a locomotion parameter

Disclosed is a method for determining an optical system intended to equip a subject, the method including the steps of: &#x2014;determining an index of sensitivity indicating, when the subject is placed in an environment including surfaces and/or borders forming globally a geometry of this environment; and landmarks associated with specific locations within the environment, how the subject relies on the global geometry and/or on the local landmarks of the environment to navigate within the environment; and&#x2014;determining the optical system based on this index of sensitivity. The invention also relates to an ophthalmic lens and to an ophthalmic filter determined by such method.

Method for determining an optical system, and ophthalmic lens and ophthalmic filter determined by said method

Disclosed is a measurement method for determining a value of a visual correction need for near vision of an individual in a natural posture for near vision. A recognizing limit distance is determined so that the individual is able to recognize at least one predetermined symbol farther than the limit distance relatively to the individual and unable to recognize the at least one predetermined symbol closer to the individual than the limit distance. A portable medium displaying the predetermined symbol is displaced in front of the face and eyes of the individual to change a frontal distance between his/her eyes and the portable medium and in which when a recognizing limit distance is detected by the individual, the limit distance is measured and the value of the visual correction need is determined from the measured limit distance, wherein the visual correction need includes an accommodation compensation need.

Measurement method for the determination of a value of a visual correction need for near vision of an individual

A monitoring component for monitoring relative position of a head mounted device and a user of the head mounted device, the head mounted device including at least one sensor, the monitoring component including: a memory configured to store computer executable code, and a processor configured to execute the computer executable codes stored in the memory of: a communication code configured to receive data from the head mounted device indicative of at least one feature sensed by the at least one sensor of the head mounted device, an information generating code configured to generate an information indicative of the relative position of the head mounted device and the user of the head mounted device based at least on the data received from the head mounted device.

Monitoring component of the position of a head mounted device

Growing community of inventors

Charenton-le-Pont, France

Konogan Baranton