314 patents
Page 6 of 16
Utility
Liquid polymerizable composition comprising chain-growth and step-growth polymerization monomers and inorganic nanoparticles dispersed therein, and its use to manufacture an optical article
21 Jun 22
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.
Akira Ishikawa, Ludovic Ferrigno, Akiko Miyakawa
Filed: 18 Dec 15
Utility
Method for determining an optical system, and ophthalmic lens and ophthalmic filter determined by said method
21 Jun 22
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.
Marcia Becu, Angelo Arleo, Anne-Catherine Scherlen, Delphine Tranvouez-Bernardin, Konogan Baranton, Denis Sheynikhovich, Guillaume Tatur
Filed: 25 Jul 18
Utility
Multifunctional device for an ophthalmic lens
14 Jun 22
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.
Denis Rousseau, Denis Cohen Tannoudji
Filed: 21 Jun 18
Utility
Method for filter selection
14 Jun 22
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.
Marie Dubail, Sophie Jost, Coralie Cauwerts
Filed: 27 Jun 18
Utility
Lens element
7 Jun 22
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.
Matthieu Guillot, Björn Drobe
Filed: 21 Jun 21
Utility
Method for determining a specific near vision power of an ophthalmic lens
7 Jun 22
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.
Martha Hernandez Castaneda, Paul Joret, Jean-Luc Perrin, Cyril Guilloux
Filed: 30 Apr 18
Utility
Method for permanent visible marking of an optical article and marked optical article
31 May 22
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.
Sébastien Maurice, Gerhard Keller, Michèle Thomas
Filed: 18 Jul 17
Utility
Optical element, assembly comprising such an optical element and method of manufacturing an optical element
17 May 22
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.
Laurent Chabin, Xavier Bultez, Guy Schott
Filed: 19 Jun 18
Utility
Method for determining the position of the eye rotation center of the eye of a subject, and associated device
17 May 22
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.
Didier Grand-Clement
Filed: 29 Jun 18
Utility
Method and system for determining a pupillary distance of an individual
10 May 22
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.
Charles Lebrun, Cécile Petignaud, Alvin François
Filed: 15 Jun 18
Utility
Method of ordering an ophthalmic lens and corresponding system
10 May 22
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.
Gilles Le Saux, Stephane Boutinon, Cecile Pietri, Helene De Rossi
Filed: 4 Mar 16
Utility
Composition for the manufacture of an ophthalmic lens comprising an encapsulated light-absorbing additive
10 May 22
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.
Pierre Fromentin, Sanya Hokputsa
Filed: 9 Aug 17
Utility
Optical lens for correcting color vision
10 May 22
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.
Marie Dubail, Montserrat Burgos, Charlène Pousse, Michèle Thomas, Xiaohong Zhang
Filed: 19 Sep 18
Utility
Method for determining a parameter of an optical device comprising at least an optical lens
10 May 22
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.
Dominick Hubacz, Stéphane Gueu
Filed: 22 Feb 16
Utility
Command/control unit and computer program for producing an ophthalmic lens comprising a step of laser marking in order to produce permanent etchings on one surface of said ophthalmic lens
19 Apr 22
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.
Frédéric Dubois, Sébastien Maurice
Filed: 5 Dec 19
Utility
Method for vapor deposition of optical substrate
29 Mar 22
Provided is a method of vacuum deposition to deposit at least two functional coatings to a substrate, including (a) evaporating a first film forming material from a first evaporation source disposed in a vacuum deposition chamber, (b) depositing the evaporated first film forming material on a substrate located above the first evaporation source to form at least a portion of an anti-reflective coating on the substrate, (c) evaporating a second film forming material from a second evaporating source disposed in the vacuum deposition chamber, and (d) depositing the evaporated second film forming materials on the substrate located above the second evaporation source to form a hydrophobic coating on the substrate.
Brian McCrady, Alain Mathieu, Cesar Maksoud, Todd Lane Jacobs
Filed: 11 Mar 15
Utility
Spectacle lens comprising an activable optical filter
29 Mar 22
A spectacle lens including an activable optical filter, the activable optical filter being configured to be actively switched between at least three configurations, wherein in the first configuration, the color perception of the spectacle wearer is unaltered, in the second configuration the activable optical filter provides a specific filtering function, in the third configuration vision of the spectacle wearer is protected against glare.
Jerome Ballet, Samuel Archambeau, Jean-Paul Cano, Frederic Arrouy, Loic Quere
Filed: 20 Feb 18
Utility
Wavelength tunable optical filter and method for switching and adjusting thereof
29 Mar 22
A wavelength tunable optical filter and a method for switching and adjusting the wavelength tunable optical filter.
Eva Oton, Estelle Netter
Filed: 3 Apr 17
Utility
Measurement method for the determination of a value of a visual correction need for near vision of an individual
22 Mar 22
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.
Martha Hernandez-Castaneda, Konogan Baranton, John Carrier
Filed: 14 Sep 17
Utility
Birefringent liquid crystal composition comprising alkylsulfanylaryl isothiocyanato tolane compounds
22 Mar 22
The present invention relates to an optical article comprising a birefringent liquid crystal composition, said composition comprising more than 30% by weight based on the total weight of the composition of tolane compounds of formula R—S—Z1-A-Z2—NCS, in which R is a substituted or unsubstituted, linear or branched alkyl group, Z1 and Z2 are aryl groups, and A is an ethynyl group, an arylethynyl group or an ethynylarylethynyl group.
Przemyslaw Kula, Jakub Herman
Filed: 21 Dec 15