Patents Assigned to Essilor International (Compagnie Générale d'Optique)
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Patent number: 9889535Abstract: A lens blocking/deblocking method/device to adhere an ophthalmic lens to a lens holding block A method for blocking an optical lens component (100) on holding unit (200) having bottom part (230) inserted and fixed in lens machining tool (400) and an upper part (250) having upper assembling surface (210) and external side parts (241). The method provides the optical lens component (100) with layer (320) of one-side adhesive tape arranged on bottom of component (100) to cover at least partially bottom (120); (S20) providing thermoplastic material on upper assembling surface (210). The thermoplastic material is heated where a part thereof flows under moderate pressure; (S30) placing the optical lens (100) with layer (320) on thermoplastic material when the thermoplastic is softened; (S40) applying pushing force (P1) on the optical lens (100), to spread the thermoplastic between layer (320) and upper assembling surface (210) and covers external side parts (241).Type: GrantFiled: December 13, 2013Date of Patent: February 13, 2018Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventor: Yohann Felten
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Patent number: 9885631Abstract: An optical instrument includes: a collimation element (30) having a focal distance; a point light source (25-27) with a wavelength of between 700 and 1000 nm and a diameter less than or equal to a fiftieth of the focal distance, placed at a first focus of the collimation element, so that the light becomes a beam (20) of collimated light; a backscatterer (12); a support for receiving an ophthalmic lens (14), with the collimation element, support and backscatterer being placed so that the beam of collimated light encounters the lens location (15) where micro-etching is present; an image analyzing element (32) and an image capture element (31) linked to the analyzing element and including an objective lens (35) placed at a second focus of the collimation element, which objective lens is developed to provide the analyzing element with images of the backscatterer in order to identify and locate the micro-etching.Type: GrantFiled: February 26, 2015Date of Patent: February 6, 2018Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventor: Guilhem Escalier
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Patent number: 9885884Abstract: An optical system having a transmission pattern comprising at least a first zone Z1 extending from at or about 380 nm to a first limit L1 between Z1, and a second zone Z2. A third zone Z3 extends from a second limit L2 between Z2 and Z3 to about 780 nm. L1 may be greater than or equal to or about 436 nm. Second limit L2 may be greater than L1 and smaller than or equal to or about 487 nm. The average transmission values T1, T2, T3, in each zone Z1, Z2, Z3 may be: T2>5*(T1+T3)/2, with T1 the average transmission over Z1, T2 the average transmission over Z2, T3 the average transmission over Z3. T1 and T3 may be greater than or equal to or about 3% and smaller than or equal to or about 70%. T2 may be greater than or equal to or about 75%.Type: GrantFiled: April 5, 2016Date of Patent: February 6, 2018Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventor: Bjorn Drobe
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Patent number: 9885632Abstract: An instrument has a light-emitting and light-receiving assembly including an image capture unit and image processing unit; a backscatterer and an opening provided therein; a support for receiving an ophthalmic lens between the assembly and backscatterer, the assembly, support and backscatterer placed so that an incident light beam traverses the lens, strikes the backscatterer, returns and re-traverses the lens to arrive at the capture unit; the light-receiving assembly, the support, backscatterer and opening configured so that the assembly receives light from the beam; and the opening and a drive device for cyclically driving and making the backscatterer perform an identical movement in each cycle, configured so that a fixed zone opposite the backscatterer includes at least one part of which, over the course of a cycle, every point is at times perpendicular to the opening and at times perpendicular to a solid portion part of the backscatterer.Type: GrantFiled: February 26, 2015Date of Patent: February 6, 2018Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUEInventor: Guilhem Escalier
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Patent number: 9888183Abstract: Optical system (10) for imaging an object includes at least: a loupe (12) including a lens (16) for magnifying the object, the lens being disposed in a frame; and a camera (14) arranged between the lens (16) of the loupe (12) and the object to image at least a portion of the same field of view as the lens (16) of the loupe (12).Type: GrantFiled: January 14, 2016Date of Patent: February 6, 2018Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Denis Rousseau, Gerard Gelly
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Patent number: 9861274Abstract: A method of assisting visual exploration for individuals suffering from a retinal condition resulting in a scotoma and, more particularly, a method S for assisting visual exploration by such an individual of a digital image on a display device, the method including: —recognizing, using shape recognition software, at least one object contained in an object area of the digital image, —determining a blind area in the image, corresponding to a position of the scotoma in the field of vision of the user looking at the image, —if the blind area and the object area are detected to be in close proximity to each other, applying image processing to the image consisting in highlighting the object area for the user.Type: GrantFiled: August 7, 2014Date of Patent: January 9, 2018Assignees: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, UNIVERSITE D'AIX-MARSEILLEInventors: Carlos Aguilar, Eric Castet
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Publication number: 20180004011Abstract: A spectacle ophthalmic lens mountable on a spectacle frame, the ophthalmic lens including: a fitting cross where the optical power is negative; a first zone extending in a temporal side of the fitting cross, wherein in the first zone when the ophthalmic lens is mounted on the spectacle frame, the optical power increases when a gazing direction moves towards the temporal side, and wherein over a nasal side of the fitting cross, the optical power of the ophthalmic lens is substantially same as at the fitting cross.Type: ApplicationFiled: December 30, 2015Publication date: January 4, 2018Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Yu Richard LIU, Diana CHANDRA, Pauline COLAS
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Patent number: 9855634Abstract: A device (1) for cutting an ophthalmic lens (L1) to be mounted onto a spectacle frame, includes: elements (10) for locking and rotating the ophthalmic lens about a locking axis (A1); a tool holder which supports at least one first tool (60) rotatable about a rotational axis (A2) and a second tool (80) rotatable about a finishing axis (A6) and which has a spacing mobility (ESC) for the spacing apart thereof from the locking axis, a shifting mobility (TRA) for the axial positioning thereof along the locking axis, and a pivoting mobility (PIV) for adjusting the orientation of the rotational axis relative to the locking axis; and elements for controlling the three mobilities of the tool holder. The rotational and finishing axes are separate from one another.Type: GrantFiled: February 25, 2014Date of Patent: January 2, 2018Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Michel Nauche, Laurent Geysels
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Publication number: 20170363883Abstract: A method implemented by computer means for calculating a lens optical system of a spectacle ophthalmic lens for a wearer. The method includes providing an aberration target lens fulfilling the requirements of: a first set of aberration data of the aberration target lens, a first set of wearing parameters of the aberration target lens, and a first set of lens parameters of the aberration target lens. The method further includes providing a distortion target consisting of target distortion values where the target distortion values are reduced or enhanced in at least a modified distortions zone when compared to the distortion values of the aberration target lens, and calculating the lens optical system by using an optimization method which jointly uses the aberration target lens and the target distortion values.Type: ApplicationFiled: December 8, 2015Publication date: December 21, 2017Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Sebastien FRICKER, Cyril GUILLOUX
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Publication number: 20170357103Abstract: User configurable eyeglasses employing retention of lenses in eyeglass frames using elastic cushion connectors may include a pair of lenses, each lens comprising at least one tab extending from the lens. An eyeglasses frame may define at least two fittings, each fitting positioned to receive one tab extending from a lens and each fitting sized larger than the tab to be received. A plurality of eyeglass lens retention cushions are each adapted to be disposed in one of the fittings and to receive one of the tabs. Each eyeglass lens retention cushion might have an elastic cushion body having a relaxed, or in situ, exterior size larger than an interior socket of the fittings and may have an interior opening with a relaxed, or in situ, size smaller than a tab extending from an eyeglasses lens.Type: ApplicationFiled: December 31, 2014Publication date: December 14, 2017Applicant: Essilor International (Compagnie Générale d'Optique)Inventors: Peiqi JIANG, John GUERRA
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Publication number: 20170356097Abstract: A method and system for manufacturing an optical article is provided. The method may comprise providing at least one ophthalmic lens substrate having a surface; applying at least one conductive coating on at least a portion the ophthalmic lens substrate; and electroplating the ophthalmic lens substrate to form a plating layer that is in a contacting relationship with the conductive coating of the optical article. Other layers may also be applied.Type: ApplicationFiled: June 8, 2015Publication date: December 14, 2017Applicant: Essilor International (Compagnie Generale D' Optique)Inventor: William EAGERTON
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Patent number: 9841615Abstract: A method for determining at least one optical design parameter for a progressive ophthalmic lens intended to be fitted in a frame of a wearer, depending on the wearer's visual behaviour, includes: a) placing the wearer in a situation in which he carries out a visual task at a first working distance; b) during this task, determining at least two gaze directions of the wearer at this first working distance in a frame of reference of the wearer's head; c) determining a relative position of a surface related to the frame or to an ophthalmic lens intended to be fitted in the frame; d) determining for each gaze direction at the first working distance the intersection between this gaze direction and the surface so as to establish a map of these points of intersection on this surface; and e) deducing the sought-after optical design parameter from this map.Type: GrantFiled: October 28, 2014Date of Patent: December 12, 2017Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Konogan Baranton, Thierry Bonnin, Juliette Wierzbicki, Ahmed Haddadi, Sarah Marie, Bjorn Drobe
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Patent number: 9841652Abstract: The present invention relates to an electrochromic composition comprising at least one reducing compound, at least one oxidizing compound which is selected from specific viologen derivatives, and at least one dye. Said composition can be used as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.Type: GrantFiled: September 16, 2014Date of Patent: December 12, 2017Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Claudine Biver, Samuel Archambeau, Fabien Berit-Debat
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Publication number: 20170351328Abstract: A method, implemented by computer means, for adapting the sensorial output mode of a sensorial output device, for example a head mounted sensorial output device, to a user of the sensorial output device, the method comprising: a user attentional availability data providing step, during which user attentional availability data indicative of the attentional availability of the user are provided, a user sensorial perception threshold determining step during which a sensorial perception threshold of the user is determined based on the user attentional availability data, and an sensorial output mode adapting step during which the sensorial output mode of the output device is adapted based on the user attentional availability data and the user sensory perception threshold.Type: ApplicationFiled: December 18, 2015Publication date: December 7, 2017Applicant: Essilor International (Compagnie Generale d' Optique)Inventors: Jean-Luc PERRIN, Damien PAILLE, Bernard BOURDONCLE, Eric PERRIER
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Publication number: 20170351118Abstract: The invention relates to the field of management systems and methods of an active device and more particularly, with said active device being an active ophthalmic lens, to a management system and method which allow a total or sufficient protection by taking into account the luminous environment of the wearer while avoiding some effects relative to permanent light filtering. According to a particular embodiment of the invention, there is also provided a monitoring of the wearer's health via active, regulated and continuous control of the active device, this control being performed for instance by a health professional via a remote monitoring system.Type: ApplicationFiled: December 29, 2015Publication date: December 7, 2017Applicant: Essilor International (Compagnie Générale d'Optique)Inventors: Coralie BARRAU, Nicolas LAVILLONNIERE, Thierry VILLETTE, Benjamin ROUSSEAU
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Patent number: 9835767Abstract: The present invention relates to an antireflective stack designed to provide similar reflected light characteristics on lenses of various refractive indexes. This antireflective stack may be coated on an ophthalmic lens, especially a spectacle lens.Type: GrantFiled: December 18, 2015Date of Patent: December 5, 2017Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventor: Ronald R. Willey
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Patent number: 9823534Abstract: The present invention relates to a group of novel electrochromic materials. More specifically, it relates to electrochromic materials based on either single or two-core viologen systems and the use of these viologen systems as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.Type: GrantFiled: September 16, 2014Date of Patent: November 21, 2017Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Stuart Aiken, Christopher David Gabbutt, Bernard Mark Heron, Claudine Biver, Samuel Archambeau, Fabien Berit-Debat, Sandrine Duluard
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Patent number: 9824087Abstract: A method for designing a mould (120) for casting a semi-finished ophthalmic lens blank, wherein the surface of the mould (120) is designed so that the surface of the mould fits a predetermined closed curve, wherein the predetermined closed curve is representative of the geometry of a gasket (160) to be used in association with the mould (10). A method for assembling a mould assembly (100) and a method for casting a semi-finished ophthalmic lens blank, and a computer program product including software code portions for performing steps of these methods are also described.Type: GrantFiled: March 22, 2012Date of Patent: November 21, 2017Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Carlos Rego, Jerome Moine, Matthieu Guillot
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Patent number: 9802174Abstract: The present invention pertains to a method for producing a colloidal suspension of zirconia particles, comprising the following successive steps: a) subjecting a mixture of zirconium oxychloride and an alkali metal halide in an aqueous solvent to hydrothermal treatment at a temperature above 150° C., so as to obtain a suspension in the form of a two-phase mixture comprising a slurry and a supernatant, b) without first peptizing it, desalting said suspension so as to form a colloidal suspension of zirconia.Type: GrantFiled: December 26, 2012Date of Patent: October 31, 2017Assignees: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), SHANGHAI UNIVERSITYInventors: Liyi Shi, Stephanie Pega, Xavier Panchout, Yves Leclaire, Shuai Yuan, Zhuyi Wang, Yin Zhao, Jian Zhao
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Patent number: 9804415Abstract: Method of supplying an optical lens adapted to a wearer, includes: a) receiving, directly or indirectly via a manufacturing side, from a first networked computer entity located at a lens ordering side, a first set of data including at least wearer's prescription data, b) sending a second set of data including at least an optical lens design information and the wearer's prescription data to a second networked computer entity located at a lens designing side, and receiving from the second networked computer entity a third set of data including at least optical lens data calculated from the second set, and c) sending at least to a third networked computer entity, at a lens manufacturing side, a fourth set of data including at least part of the optical lens data, the at least optical lens data of the fourth set of data being at least partially modified by a masking function.Type: GrantFiled: October 31, 2012Date of Patent: October 31, 2017Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)Inventors: Natacha Stephkov, Bernard Duverneuil