737 patents
Page 33 of 37
Utility
System and method for compensating deviations in an optical lens manufacturing process
4 May 20
A real-time calculation system capable of computing the industrial optical performance and yields of a prescription laboratory is disclosed.
Sebastien Piraube, Brad J. Gelb
Filed: 28 May 15
Utility
Application Device and Method to Clean Grinding Surfaces In a Machine for Grinding Ophthalmic Lenses
29 Apr 20
An application device is configured to clean grinding surfaces in a machine for grinding ophthalmic lenses, the application device including: a central portion having so as to mount the application device in the grinding machine; and a peripheral edge configured to receive an application surface to cooperate with the grinding surface of the grinding wheel so as to clean the grinding surface.
Jean-Etienne LEPAGE, Sebastien PINAULT
Filed: 28 Jun 18
Utility
Method for Manufacturing an Article Made of a Polymerized Material
29 Apr 20
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: 29 Jun 17
Utility
Nanostructured Transparent Article with Both Hydrophobic and Antifog Properties and Methods for Making It
29 Apr 20
A transparent article having a face provided with a nano structure, wherein a top part of the nano structure has hydrophobic properties and a remaining part of the nanostructure confers antifog properties to said face of said transparent article.
Sandrine COUDERC, Grégory TORTISSIER
Filed: 20 Jun 17
Utility
Method for determining a geometrical parameter of an eye of a subject
27 Apr 20
The invention provides a method for determining a geometrical parameter of an eye of a subject, such as for determining the position of a center of rotation of the subject's eye, such as for the purpose of personalizing the optical design of corrective ophthalmic lenses, wherein at least two images of the eye are captured with an image capture device while the subject looks in two different gaze directions, and on each image, the pupil and/or the iris of the eye are identified so that a geometrical parameter may be determined for determining a position of a center of rotation of the eye without requiring use of a reference accessory.
Sylvain Chene, Romain Fayolle
Filed: 2 Oct 17
Utility
Lens of variable optical power, optical assembly comprising such a lens and vision-correcting device comprising such an optical assembly
27 Apr 20
Disclosed is a lens of variable optical power, characterized in that it includes: a transparent flexible lamella; a body having a ridge inscribed in a cylindrical surface; an element able to move a first portion of the lamella, which is distinct from a second portion of the lamella making contact with the ridge, so as to deform the lamella by flection; and a liquid contained between the lamella and the body.
Stephane Boutinon, Michel Nauche
Filed: 3 Aug 16
Utility
Methods for Preparing Functional Optical Films
22 Apr 20
The disclosure provides post-production methods for functionalization of optical quality films produced by top tier manufactures.
Zbigniew TOKARSKI
Filed: 24 Jun 18
Utility
User fatigue level analysis component
20 Apr 20
The disclosed embodiments include user fatigue level analysis components, real-time visual behavior measuring devices, and methods for determining the fatigue level of a user.
Marie Lore, Coralie Barrau, Thierry Villette
Filed: 28 Jun 16
Utility
Article having a nanotextured surface with hydrophobic properties
13 Apr 20
An article having a nanotextured surface with hydrophobic properties, said nanotextured surface comprising an array of pillars (71) defined by a surface fraction (φs) of the pillars, a pitch (P) of the pillars and an aspect ratio (H/2R) of the pillars, wherein: —the surface fraction (s) is equal or greater to 2% and equal or less to 80%; —the pitch (P) is equal or less to 250; —the aspect ratio (H/2R) is equal or less to 2.4, where H is the height of the pillars and R is the radius of the pillars; —the pitch (P), the height (H), the radius (R) are expressed in nanometers (nm); —the nanotextured surface comprises at least partially a hydrophobic material.
Sandrine Couderc, Grégory Tortissier
Filed: 9 Aug 15
Utility
Functional film laminate
13 Apr 20
This invention relates to the development of a multi-layer PC polar laminate and its cut and form process.
Elliot French, Severine Tisne, Paresh Kitchloo
Filed: 14 Jul 15
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
8 Apr 20
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: 4 Dec 19
Utility
Method for determining a filter for an ophthalmic lens and ophthalmic lens comprising such a filter
6 Apr 20
Disclosed is a method for determining a filter for an ophthalmic lens to be placed in front of the eye of the wearer, the filter being able to improve or maintain the visual comfort and/or the visual performances of the wearer.
Anne-Catherine Scherlen, Adele Longo
Filed: 13 Jan 16
Utility
Optical Article and Method of Managing Optical Powers Thereof
1 Apr 20
An optical article may include a frame, a first active lens arrangement coupled to the frame, and a second active lens arrangement coupled to the frame.
Bjorn DROBE
Filed: 24 May 18
Utility
Antireflective stack for low luminance conditions
30 Mar 20
Ophthalmic lens comprising an anti-reflective stack designed for scotopic or mesopic conditions, wherein the anti-reflective stack design method uses the scotopic luminosity function CIE 1951 (defined by the Commission Internationale de I'Eclairage).
Yu Liu, Xingzhao Ding
Filed: 29 Dec 15
Utility
Optical Adhesive for Glass and Polycarbonate
25 Mar 20
Disclosed are UV curable adhesive compositions and methods to adhere polycarbonate substrates containing UV absorbers to glass for use in ophthalmic lenses.
Robert VALERI
Filed: 24 Apr 18
Utility
Optical Article Comprising an Abrasion- and/or Scratch-Resistant Coating Having a Low Sensitivity to Cracks
25 Mar 20
The present invention relates to an optical article comprising a substrate having at least one main surface successively coated with an impact-resistant primer coating and an abrasion- and/or scratch-resistant coating, which is formed from a composition comprising at least one epoxy compound bearing at least one silicon atom having at least one hydrolyzable group directly linked to the silicon atom and at least one group comprising an epoxy function, and/or a hydrolysate thereof, at least one alkylene glycol diglycidyl ether or poly(alkylene glycol) diglycidyl ether, colloidal particles of at least one metal oxide or metalloid oxide, at least one catalyst, the composition being devoid of comprise Si(X)4 compounds, or hydrolysates thereof, in which the X groups independently represent C1-C6 alkoxy groups.
Anaëlle MORTREUX, Yves LECLAIRE
Filed: 26 Mar 18
Utility
Ophthalmic lens with reduced warpage
23 Mar 20
Ophthalmic lens comprising an ophthalmic thermoplastic substrate and a light polarizing structure onto said substrate.
Séverine Tisne, Steven Weber, Aref Jallouli, Hao Wen Chiu, Paresh Kitchloo
Filed: 19 Nov 14
Utility
Liquid-crystal achromatic phase modulator
23 Mar 20
An achromatic phase modulator (100) adapted to modulate the phase of an incident beam of light (INCIDENT LIGHT) and to output the thus modulated light, the phase modulator (100) comprising a plurality of liquid crystal elements disposed in series on a light path of the incident light and a control unit (15) comprising a plurality of power sources (14) for applying drive electric signals to the liquid crystal elements, wherein the plurality of liquid crystal elements comprises at least a first and a second liquid crystal element groups (FIRST LIQUID CRYSTAL ELEMENT GROUP; SECOND LIQUID CRYSTAL ELEMENT GROUP), each group being composed of a pair of liquid crystal elements, the liquid crystal elements of the first and second group respectively being made of a first and a second liquid crystal material having a first and a second, different, refractive index wavelength dependence characteristic, the thicknesses (d1/2, d2/2) of the liquid crystal elements forming each group being equal.
Yi-Hsin Lin, Hung-Shan Chen, Ming-Syuan Chen
Filed: 8 Jan 15
Utility
Thermal Evaporator
18 Mar 20
Vapor deposition apparatuses and methods for coating a substrate with at least two functional coatings that include a hydrophobic coating are described herein.
Brian MACCRADY, Alain MATHIEU, Cesar MAKSOUD, Todd Lane JACOBS
Filed: 20 Nov 19
Utility
Optical Material with Improved Colour
18 Mar 20
Disclosed are polymerizable compositions for ophthalmic lenses.
Tipparat LERTWATTANASERI, Pierre FROMENTIN
Filed: 26 Mar 18