Patents Assigned to Essilor International
  • Publication number: 20240052235
    Abstract: The invention relates to a group of novel electrochromic compounds. More specifically, it relates to benzazoles and condensed azole compounds substituted with one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
    Type: Application
    Filed: December 14, 2021
    Publication date: February 15, 2024
    Applicant: Essilor International
    Inventors: Claudine BIVER, Fabien BERIT-DEBAT, Samuel ARCHAMBEAU, Stuart AIKEN, Georgina K. ARMITAGE, Thomas D. BROADBENT, Daniel L. CROSSLEY, Christopher D. GABBUTT, Bernard Mark HERON
  • Publication number: 20240053649
    Abstract: An electrochromic cell including a chamber including an electrochromic formulation, and at least two electrodes that are part of the same electrochemical cell and that include a conducting material deposited on the inner surface of the chamber. At least one of the electrodes includes a layer of a transparent conductive oxide and a layer including a conductive polymer, the layer including a conductive polymer being the only part of the at least one electrode that is in contact with the electrochromic formulation.
    Type: Application
    Filed: December 14, 2021
    Publication date: February 15, 2024
    Applicant: Essilor International
    Inventors: Samuel ARCHAMBEAU, Claudine BIVER, Jean-Paul CANO, David ESCAICH, Marion HARRIBEY, Marion MECA
  • Patent number: 11897214
    Abstract: A method of manufacturing an optical lens including at least one electronic component. The method includes providing a mechanical reference system on an optical lens blank, the optical lens blank being configured to be processed to form the optical lens, providing edging data configured to be used to edge the optical lens blank to form the optical lens, and embedding the at least one electronic component in the optical lens based on edging data and on the mechanical reference system.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: February 13, 2024
    Assignee: Essilor International
    Inventors: Denis Rousseau, Ludovic Jouard
  • Patent number: 11899286
    Abstract: A lens element worn in front of an eye of a person includes a refraction area having a refractive power based on a prescription for the eye of the person, and a plurality of at least three optical elements, wherein the optical elements are configured so that along at least one section of the lens the mean sphere of optical elements increases from a point of the section towards the peripheral part of the section.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: February 13, 2024
    Assignee: Essilor International
    Inventors: Matthieu Guillot, Björn Drobe
  • Publication number: 20240041318
    Abstract: A method of evaluating the efficiency of a myopia control solution for a person. The method includes providing an initial value of a prolateness indicator of at least one eye of the person, determining a second value of the prolateness indicator of the at least one eye of the person after having the person use the myopia control solution over a given period of time, and evaluating the efficiency of the myopia control solution by comparing the evolution between the initial and second values of the prolateness indicator of the at least one eye with a value of reference.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 8, 2024
    Applicant: Essilor International
    Inventors: Daniel SPIEGEL, Guillaume GIRAUDET, Matthieu GUILLOT
  • Publication number: 20240045298
    Abstract: An optical device for a wearer intended to form an electrochromic ophthalmic lens, spectacle glasses comprising two such lenses fitted on a frame, and a method for manufacturing such an optical device. The optical device includes at least one electrochromic cell which has a rear shell and a front shell respectively defining for the optical device a backside surface proximal to at least one eye of the wearer and an opposite front surface, the rear shell and the front shell being provided with at least one pair of transparent electrodes and delimiting a sealed cavity filled with an electrochromic composition. One of the front shell and the rear shell includes a mineral glass substrate, and the other one includes an organic polymeric substrate, and the electrochromic cell forms a hybrid mineral-organic ophthalmic lens selected from plano lenses and prescription lenses satisfying a prescription for power correction.
    Type: Application
    Filed: December 8, 2021
    Publication date: February 8, 2024
    Applicant: Essilor International
    Inventors: Claudine BIVER, Sira UHALTE NOGUES, Mathieu MEYNEN, Marion MECA, Marius PELOUX
  • Publication number: 20240047037
    Abstract: A system for determining a modification or a change of an initial myopia control solution used by a myopic subject, including a device for determining a real initial value and real ulterior value of an eye state parameter representative of the myopia degree of the eye of the subject at an initial time and at an ulterior time, one or more memories having in memory statistical data relative to the statistical evolution of the eye state parameter with time while the initial myopia control solution is implemented, one or more processors programmed to determine an expected ulterior value of a magnitude linked to the eye state parameter at the ulterior time based on the statistical data relative to the statistical evolution of the eye state parameter with time while the initial myopia control solution is implemented.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 8, 2024
    Applicant: Essilor International
    Inventors: Yin Zhen Janice TOH, Damien PAILLE, Gilles GARCIN
  • Patent number: 11892711
    Abstract: A method implemented by a computer for determining a single vision ophthalmic lens that is adapted to a wearer, the method including a wearer prescription data providing step during which wearer prescription data indicative at least of the prescribed optical power of the wearer are provided, a wearing data providing step during which wearing data indicative of the wearing parameters of the single vision ophthalmic lens by the wearer are provided, a single vision ophthalmic lens determining step during which the single vision ophthalmic lens is determined so that in wearing conditions corresponding to the wearing parameters, the single vision ophthalmic lens provides to the wearer the prescribed optical power in at least a first gazing direction when gazing at a first distance and second gazing direction when gazing at a second distance, wherein the first and second distances are different and the first and second gazing directions are different.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 6, 2024
    Assignee: Essilor International
    Inventors: Laurent Calixte, Matthieu Guillot, Carlos Rego
  • Patent number: 11878480
    Abstract: The present disclosure includes systems, devices, and methods for preventing contamination during formation of an optical article. In some implementations, a device for preventing contamination of a mold cavity during injection molding of a function wafer includes a containment band having an annular base that defines a first opening configured to receive a functional wafer. The device also includes one or more sidewalls that project a first direction from and surround at least a portion of the first opening. The one or more sidewalls may be configured such that, during formation of an optical article, a first portion of the functional wafer is in contact with the one or more sidewalls.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: January 23, 2024
    Assignee: Essilor International
    Inventors: Peiqi Jiang, Arnaud Glacet, Zbigniew Tokarski
  • Patent number: 11880095
    Abstract: 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.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: January 23, 2024
    Assignee: Essilor International
    Inventors: Marius Peloux, Cecile Petignaud, Konogan Baranton, Benjamin Rousseau, Bruno Fermigier
  • Patent number: 11874533
    Abstract: 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 (40) 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 (40) among the group of light environments.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: January 16, 2024
    Assignee: Essilor International
    Inventors: Anne-Catherine Scherlen, Camille Ehrismann, Sarah Marie
  • Patent number: 11867876
    Abstract: An optical article includes a substrate with front and rear main faces, one main face coated with a columnar micro- or nano-structured coating. The substrate and optical article are transparent in at least a part of the visible region ranging from 380 to 780 nm, along at least one incidence angle. The columnar micro- or nano-structured coating includes an array of columns including each a core and an upper layer covering the core, the core and the upper layer being structurally and/or chemically different and have light absorbing properties with an extinction coefficient “k” ?10-2 in the spectrum 250-2500 nm and are able to cause a change in transmission or in reflection of incident light through the optical article as a function of the angle of incidence of light. Also disclosed is a method for manufacturing an optical article including a columnar micro- or nano-structured coating.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: January 9, 2024
    Assignees: Corporation de l'Ecole Polytechnique de Montreal, Essilor International
    Inventors: William Trottier-Lapointe, Bruce Faure, Bill Baloukas, Richard Vernhes, Oleg Zabeida, Ludvik Martinu, Sasha Woodward, Nicolas Desjardins-Lecavalier, Julien Gagnon
  • Publication number: 20240004220
    Abstract: A lens element intended to be worn in front of an eye of a wearer, the lens element including at least two first areas having a refractive power based on a prescription of the wearer for said eye of the wearer, a plurality of second areas having at least a second optical function in specific wearing conditions, where one can determine at least one first radial path crossing at least a first second area in a first point and a second point, the first and second points being adjacent to the at least two first areas, the first radial coordinate being greater than the second radial coordinate, and the radial optical power at the first point is significantly different from the radial optical power at the second point.
    Type: Application
    Filed: November 26, 2021
    Publication date: January 4, 2024
    Applicant: Essilor International
    Inventors: Matthieu GUILLOT, Bruno FERMIGIER, Carlos REGO, Eric GACOIN
  • Patent number: 11857254
    Abstract: The invention relates to a method for characterizing a visual system of a subject using measures of the sensitivity to contrast, the visual system comprising visual signal processing elements each having an impact on the sensitivity to contrast, wherein a visual test where visual patterns having different spatiotemporal frequencies and with varying luminance levels and with varying levels of visual degradation of the visual patterns are shown to a subject to measure the sensitivity to contrast of said subject, is performed, wherein a predetermined response model of a visual system is preestablished on the basis of a determination of the visual signal processing element that predominantly limits the sensitivity to contrast for each value of luminance and spatiotemporal frequency, said predetermined response model relating the visual signal processing elements predominantly limiting the sensitivity to contrast to the luminances and to the spatiotemporal frequencies, wherein at least one of the visual signal pro
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: January 2, 2024
    Assignees: Essilor International, Sorbonne Université
    Inventors: Rémy Allard, Daphné Silvestre
  • Patent number: 11852784
    Abstract: The invention relates to an optical article having a substrate made of an optical material comprising a polymer matrix and an improved light transmission in the visible range. The substrate comprises an external layer in which particles are embedded into the polymer matrix, the refractive index of the particles Rp being lower than the refractive index of the polymer matrix Rs.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: December 26, 2023
    Assignee: Essilor International
    Inventors: Pierre Fromentin, Hélène Maury, Francisco De Ayguavives, Thanisararat Saleesung
  • Patent number: 11852904
    Abstract: A lens element intended to be worn in front of an eye of a person that includes a refraction area having a refractive power based on a prescription for the eye of the person, and a plurality of at least three non-contiguous optical elements, at least one optical element having a non-spherical optical function.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: December 26, 2023
    Assignee: Essilor International
    Inventors: Matthieu Guillot, Bruno Fermigier, Marius Peloux, Björn Drobe
  • Publication number: 20230404387
    Abstract: An optometry device for testing an individual's eye, including a refraction test unit having a vision correction optical system for providing different vision correction power values, and a display unit comprising a control unit controlling a projection optical system adapted to produce from a scene picture and from a visual test picture including a functional zone, respectively, along a scene optical path of the projection optical system, a scene image at a scene distance from the individual's eye, and along a visual test optical path of the projection optical system, a visual test image at a visual test distance from the individual's eye smaller than or equal to the scene distance of projection, the visual test image being superimposed at least partially with the scene image.
    Type: Application
    Filed: October 21, 2021
    Publication date: December 21, 2023
    Applicant: Essilor International
    Inventors: Mathilde SEBAG, Adèle LONGO, Juliette PAPIN, Mechtilde NOUVELLON
  • Publication number: 20230408844
    Abstract: A method for determining a progression length of an ophthalmic lens, the method including providing an addition value Add, providing a model, the model linking an addition value Add with a progression length, and based on the model and on the provided addition value, determining the progression length.
    Type: Application
    Filed: November 22, 2021
    Publication date: December 21, 2023
    Applicant: Essilor International
    Inventors: Olivier ROUSSEL, Carlos REGO, Alain GOULET, Mélanie HESLOUIS
  • Publication number: 20230411021
    Abstract: A system for determining an appropriate moment for modifying or changing an initial myopia control solution used by a myopic subject at an initial time having a database of available myopia control solutions and data relative to the evolution of the efficacy of each myopia control solution with criterion including determining the value of said criterion at an ulterior time, determining, based on this value, the efficacy of this initial myopia control solution and the efficacy of other myopia control solutions of said database at this ulterior time, comparing the efficacy of said initial myopia control solution and the efficacy of other myopia control solutions of said database determined for said ulterior time, and when the efficacy of said initial myopia control solution is lower than the efficacy of at least one of said other myopia control solutions at said ulterior time, determining appropriate moment depending on said ulterior time.
    Type: Application
    Filed: December 15, 2021
    Publication date: December 21, 2023
    Applicant: Essilor International
    Inventors: Yin Zhen Janice TOH, Damien PAILLE, Gilles GARCIN
  • Publication number: 20230393423
    Abstract: An apparatus for detecting mis-adaptation of an optical device to a wearer includes processing circuitry configured to receive and store over time head data relative to the head of the wearer when wearing and using the optical device, process the head data based on head data patterns associated with known mis-adaptation of an optical device to the wearer of said optical device, and detect mis-adaptation of the optical device to the wearer by matching the received and stored head data with head data patterns associated with mis-adaptation.
    Type: Application
    Filed: August 30, 2021
    Publication date: December 7, 2023
    Applicant: Essilor International
    Inventors: Aurélie LE CAIN, Konogan BARANTON, Sébastien FRICKER