314 patents
Page 4 of 16
Utility
Method of producing an optical device and a corresponding system
10 Jan 23
A method of producing an optical device from a volume of a curable composition, includes the following steps: —polymerizing a first portion of the volume by irradiating an external surface of the volume with a light irradiation, thereby increasing a transmittance of the first portion for the light irradiation; —polymerizing a second portion of the volume by irradiating the second portion with the light irradiation through the external surface and the polymerized first portion, wherein the light irradiation has a light intensity varying over the external surface between a first light intensity and a second light intensity distinct from the second light intensity.
Olivier Soppera, Manuel Theodet
Filed: 30 Jun 17
Utility
Method of determining an eye parameter of a user of a display device
10 Jan 23
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,—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.
Gildas Marin, Martha Hernandez-Castaneda, Konogan Baranton, Bruno Fermigier, Aude Bouchier, Jean Sahler
Filed: 28 Oct 16
Utility
Optical lens
10 Jan 23
An optical lens intended to be placed before a wearer's eye and having a front surface and a rear surface, the rear surface being the surface intended to be the closest to the wearer's eye when the optical lens is placed before a wearer's eye, the optical lens having a mineral glass element on the front surface and further comprising an eye protector that is configured to prevent any piece of the mineral glass element from reaching the wearer's eye when the element is broken, said eye protector comprising a polymer wafer arranged on the rear surface.
Claudine Biver, David Escaich, Mariska Barthelemy, Marie Engel, Sira Uhalte Nogues
Filed: 18 Oct 18
Utility
Active optical filter for spectacle lenses
10 Jan 23
Active optical filter adapted for a spectacle lens, the active optical filter being configured so as to filter light radiations over at least one predetermined range of wavelengths, wherein the full width at half maximum of the filtering function of the optical filter is smaller than or equal to 100 nm.
Coralie Barrau, Thierry Villette, Jean-Paul Cano, Samuel Archambeau, Claudine Biver
Filed: 1 Jul 20
Utility
Method for evaluating an ophthalmic lens; associated evaluation system and industrial assembly for manufacturing an ophthalmic lens
3 Jan 23
A method for evaluating an ophthalmic lens for a given wearer according to a visual performance parameter includes providing wearer's data for the given wearer.
Pierre Bercher, Jean-Pierre Chauveau, Gilles Le Saux, Sebastien Fricker, Sebastien Maurice
Filed: 28 Sep 18
Utility
Method for determining a parameter of an optical equipment
20 Dec 22
Disclosed is a method for determining a parameter of an optical equipment including an optical lens including permanent markings and being mounted in a spectacle frame, including: positioning the optical equipment is before a pattern in a first position; positioning a portable electronic device including an image acquisition module in a second position so as to acquire an image showing together the pattern seen through at least part of the optical lenses of the optical equipment in the first position and at least part of the spectacle frame of the optical equipment in the first position; detecting the permanent marking on the optical lens using the image acquired by the image acquisition module of the portable electronic device in the second position; and determining at least one parameter of the optical equipment based on the position of the permanent marking.
Thierry Bonnin, Pascal Allione, Jean Sahler, Stéphane Gueu, Sébastien Maurice
Filed: 5 Oct 17
Utility
Method of preparing an operation of surfacing of a lens blank
29 Nov 22
Disclosed is a method of preparing an operation of surfacing of a lens blank to transform the lens blank into a generated lens having a predetermined prism corresponding to an inclination between a front surface and a back surface of the generated lens at least locally.
Sébastien Piraube, Xavier Bultez, Jérome Moine
Filed: 11 Oct 18
Utility
Method for manufacturing an article made of a polymerized material
29 Nov 22
Disclosed is a method for manufacturing an article made of a polymerized material including the steps of: —providing a vat of polymerizable material, transparent at least in the 400-800 nanometers wavelengths range, —irradiating the polymerizable material with a laser beam according to a predetermined pattern so as to polymerize the polymerizable material in order to form the article, the predetermined pattern being determined based on a three-dimension representation of the article with the positions in three dimensions of a plurality of volume units adapted to form together the article, the laser beam scanning the vat in three dimensions in order to be focused at each position of the volume units present in the predetermined pattern so as to initiate locally the polymerization of the polymerizable material at each of these positions.
Manuel Theodet
Filed: 30 Jun 17
Utility
Systems and methods for vision testing
29 Nov 22
A vision testing device includes a light-occluding casing for administering vision tests.
David Tang, Bruno Moinard, Damien Rousseau, Andrea Molinaro
Filed: 24 Mar 17
Utility
Polycarbonate resin compositions with consistent color and stable blue-cut performance
22 Nov 22
Embodiments of the disclosure relate to a series of PC resin additives for maintaining the color stability and blue-cut performance during injection molding.
Hao Wen Chiu, Elliot French, Aref Jallouli, Haifeng Shan
Filed: 20 Sep 17
Utility
Method and system for determining an optical system intended to equip a person on the basis of the adaptability of the person to a visual and/or proprioceptive modification of his/her environment
15 Nov 22
A method for determining an optical system intended to equip a person on the basis of the adaptability of the person to a visual and/or proprioceptive modification of his environment, the method. including a person visual behaviour parameter providing, during which a person visual behaviour parameter indicative of the visual behaviour of the person relative to a given state of the environment is provided; a reference value providing, during which a first value of the person visual behaviour pa ameter corresponding to a reference state of the environment is provided; a visual and/or proprioceptive modification providing, during which a visual and/or proprioceptive modification of the reference state of the environment is provided so as to define a modified state of the environment; and determining, during which an optical parameter of the optical system is determined based on the first value of the person visual behaviour parameter and on a second value of the person visual behaviour parameter associated with the modified state of the environment.
Guillaume Giraudet, Jocelyn Faubert, Rafael Doti, Eduardo Lugo
Filed: 30 Aug 18
Utility
Lens supply system and related methods
1 Nov 22
The supply systems for providing spectacle ophthalmic lenses have improved efficacy, in particular with respect to lens blank picking performance and/or lens manufacturing performance.
Vincent Godot
Filed: 6 Jan 20
Utility
Method for manufacturing an ophthalmic article
1 Nov 22
Disclosed is a method for manufacturing an ophthalmic article including a substrate and a functional wafer securely fastened to a first curved face of the substrate, the manufacturing method including the steps of providing the functional wafer preformed according to a first desired shape, the preformed functional wafer having a first preformed face intended to be applied on the first curved face of the substrate, the first preformed face being defined by first geometrical characteristics; determining second geometrical characteristics of the first curved face of the substrate to be manufactured according to the first geometrical characteristics of the first preformed face of the preformed functional wafer; manufacturing the first curved face according to the second geometrical characteristics determined; fixing the preformed functional wafer to the manufactured substrate by applying the first preformed face on the first curved face in order to form the ophthalmic lens.
Céline Lechat, Julien Hubert
Filed: 27 Oct 17
Utility
Optical material with improved colour
25 Oct 22
Disclosed are polymerizable compositions for ophthalmic lenses.
Tipparat Lertwattanaseri, Pierre Fromentin
Filed: 27 Mar 18
Utility
Method for additively manufacturing an opthalmic lens and opthalmic lens
18 Oct 22
A method of manufacturing an ophthalmic lens, including: a step of providing a starting optical system (30) having a first optical function and a first main refractive index; a step of providing a transition layer (20) intended to be disposed between the starting optical system (30) and a complementary optical element (12) having a second main refractive index, the transition layer (20) aiming at reducing unwanted reflection caused by the mismatch between the first and the second main refractive index, the transition layer (20) having a transition optical function; and a step of additively manufacturing the complementary optical element (12) on the transition layer (20), the complementary optical element (12) having a second optical function, the second optical function being predetermined as a function of the first optical function and of the transition optical function.
Jean-Marc Padiou, Mathieu Feuillade, Alexandre Gourraud, Loïc Quere, Olivier Roussel
Filed: 5 Dec 18
Utility
Antistatic coating compositions
4 Oct 22
Described is a curable composition that includes a salt comprising an alkali cation or rare earth metal ion and a counter ion which is the conjugate base of a superacid, a silicon containing binder, and an additive having a formula R1-O—[(CH2—CHR3)-O]n—R2, in which R1 and R2 represent H or an alkyl group, R3 is H or methyl, and n is an integer ranging from 2 to 200.
Haipeng Zheng
Filed: 11 Jul 14
Utility
Set of ophthalmic lenses
4 Oct 22
A set of ophthalmic lenses is described where each ophthalmic lens has at a point of optical reference a maximum power and meets an optical performance criterion in standard wearing conditions, wherein the range of maximum powers of the set of ophthalmic lenses is greater than or equal to 10 D, and all the ophthalmic lenses of the set of ophthalmic lenses have been manufactured from a set of semi-finished lens blank, each semi-finished lens blank having the same base curve.
Melanie Heslouis, Carlos Rego, Cyril Guilloux
Filed: 27 Nov 18
Utility
Ophthalmic lens having increased resistance to hot and humid environment
27 Sep 22
The invention concerns an ophthalmic lens having an increased resistance to thermal and hygroscopic stresses, said ophthalmic lens comprising a substrate, at least one main face of which is coated with a siloxane-based anti-abrasion hardcoat, characterized in that said ophthalmic lens further comprises at least one protective layer of an organic-inorganic material directly in contact with said hardcoat, said protective layer of organic-inorganic material having a Young's modulus higher than 20 GPa, preferably of at least 25 GPa.
Martin Caron, Karin Scherer, Oleg Zabeida, Ludvik Martinu, Jolanta Klemberg-Sapieha, Thomas Schmitt
Filed: 21 Aug 17
Utility
Method for determining a progressive ophthalmic device for personalised visual compensation for an individual
27 Sep 22
The invention relates to a method for determining a progressive ophthalmic device for personalised visual compensation for an individual, according to which the following steps are performed: a) in a first data acquisition phase, determining at least at a first time preceding the appearance of the presbyopia of this individual, at least one value of at least one individual parameter of said individual, and recording each value of the individual parameter of the wearer in a database, in correlation with an associated temporal indicator, b) in a second determination step of the progressive ophthalmic device for personalised visual compensation, determining a desired value of at least one geometric or optical parameter of said progressive ophthalmic device for visual compensation, taking account of said at least one value of the individual parameter determined in step a) and the associated temporal indicator.
Thierry Bonnin, Delphine Tranvouez-Bernardin, Laurent Calixte, Isabelle Poulain
Filed: 30 Aug 17
Utility
Method and device for measuring data for fitting an ophthalmic lens in a frame for a given individual
27 Sep 22
Disclosed is a method for measuring data for fitting an ophthalmic lens in a frame for a individual, including the following steps: a) placing the individual in a natural posture; b) displaying a visual target with adjustable position in the field of view of the individual; c) having the individual equipped with the frame adjust the position of the visual target in order to place it straight ahead from him; d) determining the intersection, with a surface representative of the lens once placed in the frame, of the line of sight of the individual looking at the visual target with its adjusted position and determining the data based on the intersection determined.
Cécile Petignaud, Amandine Debieuvre, Bénédicte Deldalle
Filed: 5 Jun 18