Patents Assigned to Essilor International
  • Publication number: 20220198959
    Abstract: 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.
    Type: Application
    Filed: March 20, 2020
    Publication date: June 23, 2022
    Applicants: Essilor International, Sorbonne Université
    Inventors: Denis SHEYNIKHOVICH, Richard CARRILLO, Luca Leonardo BOLOGNA, Youssouf CHERIFI, Tiany LI, Angelo ARLEO, Konogan BARANTON, Anne-Catherine SCHERLEN, Delphine TRANVOUEZ-BERNARDIN
  • Patent number: 11366338
    Abstract: Disclosed is a method for determining an optical system intended to equip a subject, the method including the steps of: —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—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.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: June 21, 2022
    Assignee: Essilor International
    Inventors: Marcia Becu, Angelo Arleo, Anne-Catherine Scherlen, Delphine Tranvouez-Bernardin, Konogan Baranton, Denis Sheynikhovich, Guillaume Tatur
  • Patent number: 11365320
    Abstract: Disclosed is a liquid polymerizable composition including a chain-growth polymerization dispersing monomer, a step-growth polymerization monomer system and inorganic nanoparticles homogeneously dispersed in the monomers, as well as its use for the preparation of a transparent polymeric material having a high refractive index and low haze and its use in the optical field.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 21, 2022
    Assignees: Essilor International, Nikon Corporation
    Inventors: Akira Ishikawa, Ludovic Ferrigno, Akiko Miyakawa
  • Patent number: 11360332
    Abstract: The present invention relates to a method implemented by computer means of selecting an optical filtration of an ophthalmic device for a wearer, the method comprising: —obtaining wearer's preferences relatively to at least one predetermined type of visual environment comprising multispectral or hyper spectral data; —selecting at least one filter: —corresponding to said wearer's preferences relatively to said at least one predetermined type of visual environment, and —determined on the basis of said multispectral or hyper spectral data.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: June 14, 2022
    Assignee: Essilor International
    Inventors: Marie Dubail, Sophie Jost, Coralie Cauwerts
  • Patent number: 11360331
    Abstract: A multifunctional device for an ophthalmic lens or ophthalmic lens blank, comprising an electrochromic layered module and an ophthalmic power layered module, both modules being on the same support layer.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 14, 2022
    Assignee: Essilor International
    Inventors: Denis Rousseau, Denis Cohen Tannoudji
  • Patent number: 11353722
    Abstract: Disclosed is a method for determining a specific near vision power of an ophthalmic lens to be provided to a wearer having an ophthalmic prescription, the specific near vision power being for near distance vision, the method including: an ophthalmic lens providing step during which at least an ophthalmic lens having a near distance vision zone including a mean power adapted for near distance vision is provided to the wearer; a near vision task speed determining step during which the processing speed of a near vision task by the wearer when wearing the provided ophthalmic lens is determined; wherein the ophthalmic lens providing step and the near vision task speed determining step are repeated with ophthalmic lenses having different mean power, so as to determine a specific near vision power corresponding to the mean power providing an improved near vision task processing speed.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: June 7, 2022
    Assignee: Essilor International
    Inventors: Martha Hernandez Castaneda, Paul Joret, Jean-Luc Perrin, Cyril Guilloux
  • Patent number: 11353721
    Abstract: A lens element worn in front of an eye of a person includes a refraction area having a first refractive power based on a prescription for correcting an abnormal refraction of the eye of the person and a second refractive power different from the first refractive power and a plurality of at least three optical elements, at least one optical element having an optical function of not focusing an image on the retina of the eye so as to slow down the progression of the abnormal refraction of the eye.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: June 7, 2022
    Assignee: Essilor International
    Inventors: Matthieu Guillot, Björn Drobe
  • Patent number: 11347078
    Abstract: Disclosed is a method for marking an optical article coated with an interference coating including at least two layers, an inner layer and an outer layer, and having reflection coefficient Re; by exposure of the inner layer, at a marking point, by way of a laser beam at a marking wavelength, in such a way as to ablate the inner layer and any layer further away from the substrate; the ablated area having a reflection coefficient Rm different from Re by at least 1%; the inner layer absorbing the marking wavelength to a greater degree than any layer further away from the substrate. Also disclosed is an optical article coated with an interference coating having at least two layers, an inner layer and an outer layer, the article including a marking pattern formed by local absence of layers.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: May 31, 2022
    Assignee: Essilor International
    Inventors: Sébastien Maurice, Gerhard Keller, Michèle Thomas
  • Patent number: 11331861
    Abstract: An optical element includes an optical lens produced by an additive manufacturing method and a holder formed at least in part with the optical lens by the additive manufacturing method. The holder is adapted for cooperation with a manufacturing machine to thereby position the optical lens at a predetermined position in the manufacturing machine. A corresponding assembly and a method of manufacturing an optical element are also described.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: May 17, 2022
    Assignee: Essilor International
    Inventors: Laurent Chabin, Xavier Bultez, Guy Schott
  • Patent number: 11333901
    Abstract: Disclosed is a method for determining the position of the eye rotation center of a subject's eye including: providing a geometric model of an eye, the eye being modeled with one sphere for the sclera and one ellipsoid for the cornea of the eye, the position of the eye rotation center being the distance between a center of the sclera and an apex of the cornea and being determined based on a set of personal parameters including a first geometric dimension of the eye, each personal parameter distinct from the position of the eye rotation center; determining a value of each personal parameter; and determining a first approximate value of eye position rotation center based on the geometric model using the personal parameters. Also disclosed is a method for calculating a personalized ophthalmic lens for the eye using such center, as well as a device implementing this method.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 17, 2022
    Assignee: Essilor International
    Inventor: Didier Grand-Clement
  • Publication number: 20220142470
    Abstract: An optometry device for testing an individual's eye, includes a refraction test unit having an optical system for providing different vision correction powers close to the eye of the individual, and a display unit adapted to produce a visual test image for the individual's eye, the visual test image being visible through an exit aperture of the test unit of the optometry device. The display unit includes a screen adapted to display a test picture used in producing the visual test image and at least one optical element having an optical power. The optical element presents an active state in which it exhibits a non zero refraction power placed on an optical path of the light emitted by the screen and exiting the device through the exit aperture, and an inactive state in which it introduces no refractive power on the optical path.
    Type: Application
    Filed: March 20, 2020
    Publication date: May 12, 2022
    Applicant: Essilor International
    Inventors: Stéphane BOUTINON, Léonard HARTMANN, Bernard BRECHEMIER, Mai-Lan BOYTARD
  • Patent number: 11327342
    Abstract: The present invention relates to optical lens for correcting color vision for individuals with color vision deficiency comprising a substrate and an absorbing dye which has at least a minimum light transmission factor at a wavelength ranging from 515 nm to 80 nm that is lower than or equal to 40% and quickly varying transmission around 500 nm and around 595 nm.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 10, 2022
    Assignee: Essilor International
    Inventors: Marie Dubail, Montserrat Burgos, Charlène Pousse, Michèle Thomas, Xiaohong Zhang
  • Patent number: 11324399
    Abstract: A method for determining a pupillary distance of an individual, includes the following steps: —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; —instructing the individual to look with at least the eye at the displayed object; —acquiring at least an image of a part of the body of the individual including the eye; —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 —calculating the pupillary distance based on the location of the plurality of specific features. A corresponding system is also described.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: May 10, 2022
    Assignee: Essilor International
    Inventors: Charles Lebrun, Cécile Petignaud, Alvin François
  • Patent number: 11326980
    Abstract: Disclosed is a method for determining a parameter of an optical device including at least an optical lens, the method including: an optical system providing step, during which an optical system including a visual target, the optical device and an image acquisition module is provided in an initial configuration state, a parameter determining step during which a parameter of the optical device is determined based on the blur level of the images of the visual target acquired by the image acquisition module through the optical device in at least two different configuration states.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: May 10, 2022
    Assignee: Essilor International
    Inventors: Dominick Hubacz, Stéphane Gueu
  • Patent number: 11327339
    Abstract: A method of ordering an ophthalmic lens comprises the following steps: —obtaining data representative of a desired correction for a wearer's eye; —determining (S6, S8), using an electronic device, a lens power to be measured on a lensmeter based on the obtained data and on at least one parameter defining an expected position of the lens with respect to the wearer's eye, wherein the lens power corresponds to the power measured on the lensmeter for a lens adapted to provide the desired correction to the wearer's eye when placed at the expected position with respect to the wearer's eye; —ordering (S10) the ophthalmic lens specifying the determined power. A corresponding system is also provided.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: May 10, 2022
    Assignee: Essilor International
    Inventors: Gilles Le Saux, Stephane Boutinon, Cecile Pietri, Helene De Rossi
  • Patent number: 11327202
    Abstract: The present invention relates to a thermosetting composition for the manufacture of an ophthalmic lens which efficiently absorbs light rays without degradation of the light-absorbing additive, said composition comprising an allyl monomer or oligomer, a catalyst, at least one light-absorbing additive contained in nanoparticles which are dispersed in said allyl monomer or allyl oligomer. The present invention also relates to the use of said composition and to the ophthalmic lens obtained from said composition.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: May 10, 2022
    Assignee: Essilor International
    Inventors: Pierre Fromentin, Sanya Hokputsa
  • Publication number: 20220121040
    Abstract: A method for determining a design of a progressive lens intended to be worn by a future wearer, the progressive lens comprising a front surface and a back surface, at least one of the front surface and the back surface comprising a progression profile on its general spherical shape, said at least one progression profile defining a meridian line extending from a distance-vision point to a near-vision point, said meridian line comprising a vertical portion passing through the distance-vision point and an inclined portion passing through the near-vision point, the vertical portion and the inclined portion forming an angle between them, the method including obtaining first data representative of a first measurement of a first postural instability of the future wearer when seeing a visual pattern moving along an mediolateral direction, and determining a reparation between the first progression profile and the second progression profile based on the first data.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 21, 2022
    Applicants: Essilor International, UNIVERSITE DE MONTREAL
    Inventors: Delphine TRANVOUEZ-BERNARDIN, Jocelyn FAUBERT, Guillaume GIRAUDET
  • Patent number: 11305382
    Abstract: A method for producing an ophthalmic lens includes a step of laser marking in order to produce permanent etchings on one surface of the lens, at least one predefined step subsequent to the marking step and implementing extreme thermal stress that is applied to the surface, and a step of determining an operating point (PF) of a laser marking machine (1) configured to implement the marking step from geometric characteristics (Di) of the etchings to be made, the determining step including the steps of determining (304) a value (CPM) representative of the deformation of the lens on at least one treatment area of the surface, from the stress and data relative to a predetermined material from which the lens is formed, and of deducing (308) the operating point from the value representative of deformation and from the geometric characteristics.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: April 19, 2022
    Assignee: Essilor International
    Inventors: Frédéric Dubois, Sébastien Maurice
  • Patent number: 11300813
    Abstract: A frame for a head mounted device including: a front part; a first temple configured to be electronically connected to the front part via a first connection and including a battery providing electrical power arranged in a cavity in the first temple and connected electrically to the first connection; a second temple configured to be electrically connected to the front part and having a cavity therein configured to receive therein at least one electronic module; and a second connection configured to connect electrically the battery of the first temple to the at least one electronic module of the second temple via the front part to receive power therefrom.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: April 12, 2022
    Assignee: Essilor International
    Inventors: Denis Rousseau, Marie Lore, Guillaume Broutin, Jean Sahler, Paul Gil
  • Patent number: 11300815
    Abstract: Disclosed is a method for verifying the mounting of at least one ophthalmic lens in a frame of a pair of spectacles designed to be worn by a subject, the method including the steps of: obtaining a test image of the frame in which the at least one ophthalmic lens is mounted, the at least one ophthalmic lens including at least one marking visible in the test image; comparing the test image of the frame with a reference image of the frame worn by the subject without the at least one ophthalmic lens; and verifying the mounting of the at least one ophthalmic lens in the frame based on the previous comparison.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: April 12, 2022
    Assignee: Essilor International
    Inventor: Gilles Le Saux