Patents by Inventor Céline LECHAT

Céline LECHAT has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11485100
    Abstract: 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.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: November 1, 2022
    Assignee: Essilor International
    Inventors: Céline Lechat, Julien Hubert
  • Publication number: 20210325697
    Abstract: This ophthalmic lens has a front face and a rear face, and has: a light cut factor CutLED of at least 20% for wavelengths ranging from 380 nm to 500 nm, CutLED being defined by: CutLED = 100 - ? ? = 380 500 ? ( lens ? ? T ? % × LED ? ? emission ? ? % ) ? ? = 380 500 ? LED ? ? emission ? ? % where ? is a discrete or continuous sum operator, ? is the wavelength in nm, lens T % is the transmittance of the lens in % and LED emission % is the spectral distribution of a white light emitting diode in %; and an antireflective coating on the front and rear faces having a luminous reflectance in the visible region for scotopic vision Rv? lower than or equal to 1.5%.
    Type: Application
    Filed: September 23, 2019
    Publication date: October 21, 2021
    Inventors: Susana MONTECELO, Marie DUBAIL, Céline LECHAT, Céline ROBIN
  • Patent number: 10732324
    Abstract: The invention relates to a method for preparing an optical system item having a non-zero radius of curvature and coated with an interference coating. Said method includes: a) providing a thermoplastic film coated with a multilayer interference coating containing at least one layer having a refractive index of greater than 1.65 and at least one layer having a refractive index of less than or equal to 1.65, at least one of the interference coating layers being a vacuum-deposited organic/inorganic layer, b) laminating said coated thermoplastic film, by means of an adhesive layer, onto an optical system item including a substrate, and c) recovering said optical system item, including a substrate coated with the adhesive layer, from the thermoplastic film and the multilayer interference coating.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 4, 2020
    Assignee: Essilor International
    Inventors: Céline Lechat, Karin Scherer
  • Publication number: 20190315080
    Abstract: 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.
    Type: Application
    Filed: October 27, 2017
    Publication date: October 17, 2019
    Inventors: Céline LECHAT, Julien HUBERT
  • Publication number: 20180231691
    Abstract: The invention relates to a method for preparing an optical system item having a non-zero radius of curvature and coated with an interference coating. Said method includes: a) providing a thermoplastic film coated with a multilayer interference coating containing at least one layer having a refractive index of greater than 1.65 and at least one layer having a refractive index of less than or equal to 1.65, at least one of the interference coating layers being a vacuum-deposited organic/inorganic layer, b) laminating said coated thermoplastic film, by means of an adhesive layer, onto an optical system item including a substrate, and c) recovering said optical system item, including a substrate coated with the adhesive layer, from the thermoplastic film and the multilayer interference coating.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 16, 2018
    Inventors: Céline LECHAT, Karin SCHERER