Essilor International (compagnie Generale D'optiqu Patent applications |
Patent application number | Title | Published |
20150328740 | Method Of Manufacturing An Optical Lens - Method of manufacturing an optical lens, the method comprising: a lens member providing step (S | 11-19-2015 |
20140218679 | METHOD AND DEVICE FOR DETERMINING AT LEAST ONE CUSTOMIZED ADJUSTMENT PARAMETER OF A LENS CARRIED BY A SPECTACLES FRAME FACING THE EYE OF A WEARER - A method for evaluating at least one individualized fitting parameter for a lens mounted in a spectacle frame. The method includes the following steps: (a) evaluating a postural parameter of the wearer of the spectacle frame in a vision posture, the postural parameter being selected from a plurality of preset postural parameters; (b) evaluating a second pantoscopic angle formed between, on the one hand, the projection of the temple of the frame onto the sagittal plane of the wearer, and on the other hand, the trace, on the same plane, of the front side of the frame; and (c) evaluating the first pantoscopic angle as a function of, on the one hand, the second pantoscopic angle evaluated in step (b), and on the other hand, the postural parameter of the wearer evaluated in step (a). | 08-07-2014 |
20130038832 | DEVICE FOR DEMONSTRATING AND TESTING THE EFFICACY OF AN ANTIREFLECTION TREATMENT OF AN OPHTHALMIC LENS - A device has an image and a mirror for demonstrating and testing in comparative manner the effectiveness of an anti-reflection treatment of an ophthalmic lens. The device has a part ( | 02-14-2013 |
20120274902 | METHOD AND A DEVICE FOR AUTOMATICALLY MEASURING AT LEAST ONE REFRACTIVE CHARACTERISTIC OF BOTH EYES OF AN INDIVIDUAL - A method for automatically measuring at least one refractive characteristic of both eyes of a person, includes: a) adjusting at least one position of a person's head, in a reference system connected to an image capture apparatus set up to convert each captured image into a signal representing the image; b) illuminating both eyes with at least one light source, whose position is known within the reference system; c) measuring at least one sight direction parameter connected to the sight direction of the person within a reference system connected to the head thereof; d) capturing at least one retinal reflection image from the light source onto the retina of both eyes; f) determining, from the captured image in Step d), the refractive characteristic of the eyes; and h) storing the sight direction parameter in relation to the predetermined refractive characteristic during the image capture in Step c). | 11-01-2012 |
20120268713 | METHOD FOR DETERMINING, OPTIMISING AND PRODUCING AN OPHTHALMIC LENS AND SET OF OPHTHALMIC LENSES - The invention relates to a method for determining an ophthalmic lens for a person (i | 10-25-2012 |
20120105800 | Method And Apparatus For Designing An Optical Lens - A method and an apparatus for designing an optical lens surface for the manufacture of the optical lens, the method comprising the steps of providing a reference surface S | 05-03-2012 |
20120075705 | Optical Article Coated with a Sub-Layer and with a Heat Resistant, Multilayered Antireflection Coating, and Method for Producing Same - The invention relates to an optical article having antireflection properties, optionally antistatic properties, having a high thermal and abrasion resistance, as well as the method for producing the same. | 03-29-2012 |
20120013845 | Optical Article Coated with an Antireflection or Reflective Coating Comprising an Electrically Conductive Film Based on Tin Oxide, and Production Method - This invention relates to an optical article having antistatic and antireflection or reflective properties, comprising a substrate having at least one main surface coated with an antireflection or reflective coating, said coating comprising at least one electrically conductive layer comprising at least 30% tin oxide (SnO | 01-19-2012 |
20110310346 | TRANSPARENT OPTICAL ELEMENT INCLUDING A CELL ASSEMBLY - The invention relates to a transparent optical element including an assembly of cells having variable respective depths as measured in a direction perpendicular to a surface of the element having said cells. The cells can be filled with a gas or with mixtures of at least two components having different light refraction index values. The variation of the cell depth increases the variation of an equivalent value of the light refraction index associated with each cell, and reduces the roughness of a lens equivalent to the optical element. | 12-22-2011 |
20110070361 | NON-ELECTROLYTIC DEPOSITION METHOD - The invention relates to a method for the non-electrolytic deposition of a compound, preferably an electrochromic compound, comprising the following successive steps: (a) an electroconductive layer is deposited on a non-conductive solid substrate; (b) a reducing agent or an oxidizing agent (=redox agent) is deposited on an area of said electroconductive layer, said area covering only a portion of the surface of said electroconductive layer; and (c) a solution of a precursor of the compound to be deposited is brought into contact both with the redox agent and with at least a portion of the area of said electroconductive layer not covered by the redox agent, said precursor being chosen from those having an oxidation-reduction potential higher or lower than the redox agent and forming, after an oxidation-reduction reaction, a compound insoluble in the solution of the precursor of the compound to be deposited. | 03-24-2011 |
20110033802 | METHOD FOR PREPARING A PHOTO-CROSSLINKABLE COMPOSITION - The invention relates to a photo-crosslinkable composition that can be obtained by a method including the following steps: (a) the hydrolysis and condensation reaction of a [(epoxycycloalkyl)alkyl]thalkoxysilane in solution in an organo-aqueous medium containing water in an initial water/monomer molar ratio of between 3 and 15, with at least one water-soluble solvent, at a pH of between 1.6 and 4.0, by heating the solution to a temperature of between 50 and 70° C. for a duration of between 180 and 350 minutes in order to obtain a solution of an organo-mineral hybrid prepolymer, in which the totality or quasi-totality of the alkoxysilane groups has been hydrolysed, and which comprises in average at least 4 (epoxycycloalkyl)alkyl groups; (b) cooling the polyepoxide prepolymer composition thus obtained down to a temperature of between 15 and 25° C.; (c) adding to said composition at least one cationic-polymerisation photo-primer and at least one photosensitiser having a maximum absorption at a wavelength of between 300 and 420 nm, and optionally adding a surfactant; (d) agitating the composition thus obtained for a duration of between 10 and 120 minutes at a temperature of between 15 and 25° C.; (e) filtering the composition thus obtained with a filter comprising pores with an average size of between 1 and 5 μm; and (f) storing the liquid filtrate thus obtained at a temperature lower than 0° C., preferably between −20 and −10° C. The invention also relates to the use of such a photocrosslinkable composition as a negative photosensitive resin in a photolithography process. | 02-10-2011 |
20100283968 | Method for Determining the Shape of the Bevel of an Ophthalmic Lens - A method for determining the shape of the bevel of an ophthalmic lens so as to have the ophthalmic lens fit a given spectacle frame, the method comprising the steps of: providing the three-dimensional (xi, yi, zi) internal profile of the groove of at least a rim of the spectacle frame expressed in the principal axes (Xf, Yf, Zf) of the spectacle frame and the length Pf of the periphery of the groove of the rim, providing the blocking point of the ophthalmic lens and the horizontal direction Xl of the ophthalmic lens, projecting the three-dimensional (xi, yi, zi) internal profile of the groove of the rim on the front face surface of the ophthalmic lens so as to obtain a three-dimension projected groove shape (xp, yp, zp), modifying the coordinates of each point of the two-dimensional groove shape (xp, yp) based on two correction coefficient, Rx for the coordinate xp and Ry for the coordinate yp, with Rx+Ry=1 so as to have the length Pp of the three-dimensional groove projected shape (xp, yp, zp) equal to the length Pf of the periphery of the internal profile of the groove of the rim. | 11-11-2010 |
20100283967 | Method of Calculating an Optical System According to a Given Spectacle Frame - A method of calculating an optical system (OS) of an ophthalmic lens according to a given spectacle frame comprising the steps of: providing geometrical data of the spectacle frame, providing wearer data, and optimization of the optical system (OS) according to at least the criteria consisting of the geometrical data of the spectacle frame, the wearer data and at least one positioning data, so as to generate at least two optical surfaces (S | 11-11-2010 |
20100195045 | METHOD OF MEASURING AT LEAST ONE GEOMETRICO-PHYSIOGNOMIC PARAMETER FOR POSITIONING A VISION CORRECTING EYEGLASS FRAME ON THE FACE OF A WEARER - A method of capturing a substantially front-view image of the face of a wearer wearing at least one frame ( | 08-05-2010 |
20100074556 | METHOD OF DETERMINING THE POSITION OF A DRILL HOLE TO BE DRILLED ON AN OPHTHALMIC LENS - Method of determining the position of a target drill hole to be drilled in a target corrective lens having an expected target outline after shaping, the position being determined from a reference lens having a reference outline and at least one reference drill hole, the method includes: acquiring an image and at least one characteristic of the curvature of the reference lens; determining, in the acquisition plane, the reference distance in projection between the projection of a reference anchor point of the associated reference lens and the reference lens and the projection of a reference drilling point of the reference drill hole calculating the three-dimensional reference distance between the reference anchor point and the reference drilling point as a function of the characteristic of the curvature of the reference lens ( | 03-25-2010 |
20100060852 | SINGLE VISION SPECTACLE LENS - An improved single lens comprising: | 03-11-2010 |
20090275701 | Curable Composition Based On Polyurethane And On Block Copolymers, And Transparent Material Obtained From Said Composition - Curable composition comprising: (a) one or more particular polyisocyanates or a polyurethane prepolymer obtained by the polycondensation of a polyisocyanate in excess, chosen from said polyisocyanates, with one or more polyols comprising at least two free alcohol functional groups, chosen from polypropoxylated or polyethoxylated bisphenol A compounds and polyfunctional polycaprolactone-alcohols; (b) one or more polyols comprising at least two free alcohol functional groups, chosen from polypropoxylated or polyethoxylated bisphenol A compounds and polyfunctional polycaprolactone-alcohols, and polyurethane prepolymers obtained by the polycondensation of one or more polyols in excess, chosen from the above polyols, with one or more particular polyisocyanates, the ratio of the number of isocyanate functional groups of the polyisocyanate component (a) to the number of alcohol functional groups of the polyol component (b) being between 1.00 and 1.20; and (c) 5% to 80% by weight, relative to the total weight of (a), (b) and (c), of one or more polystyrene-block-polybutadiene-block-poly(methyl methacrylate) block copolymers; | 11-05-2009 |
20090195883 | Optical Element Comprising Cells Sealed by Means of a Layer of Adhesive Material - An optical element comprises a base component ( | 08-06-2009 |
20090146916 | Display Intented to be Mounted on a Pair of Spectacles - The invention relates to a display ( | 06-11-2009 |
20090135371 | PROCESS FOR THE MANUFACTURE OF SPECTACLE LENSES - The invention provides methods for eliminating sharp edges that typically result during the production of uncut lenses. | 05-28-2009 |
20080316558 | Method for Transferring a Micron Pattern on an Optical Pattern and the Thus Obtained Optical Pattern - A pattern (P) is transferred onto an optical article ( | 12-25-2008 |
20080289200 | Method for Scanning Rim Groove Contour of Spectacle Frame - A method of reading the outline of the bezel of a rim of an eyeglass frame, includes contacting the bottom of the bezel and a feeler finger ( | 11-27-2008 |