Patents by Inventor Frederic Chaput

Frederic Chaput 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).

  • Publication number: 20240118471
    Abstract: An optical structure comprising at least one stack having a central filter (1) and two sandwiching optical elements (2,3) between which the central filter (1) is interposed, wherein the central filter (1) is in a matrix material. The matrix material being doped with at least one doping agent, the central filter (1) and the two optical elements (2,3) on either side thereof being assembled by bonding layers (4a, 4b) of a material based on the same matrix material as that of the central filter, the optical elements (2,3) on either side of the central filter (1) and the bonding layers (4a, 4b) each having a refractive index equal to that of the material of the central filter or only differing from this refractive index within a range of plus or minus 0.05, preferably within a range of plus or minus 0.02.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 11, 2024
    Applicants: UNIVERSITE CALAUDE BERNARD LYON 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), ECOLE NORMALE SUPERIEURE DE LYON
    Inventors: Stéphane PAROLA, Cesar LOPES, Denis CHATEAU, Frederic CHAPUT
  • Publication number: 20160040353
    Abstract: A method for depositing a photocatalytic coating on a support, the method having the steps: a) providing an aqueous and/or alcoholic suspension of nanoparticles of a semiconducting material, b) providing a sol in an aqueous and/or alcoholic solution of a hydrolyzed organosilane, c) mixing the suspension and the sol and proceeding with deposition of the obtained mixture on the support to be covered, d) performing a drying operation, e) and optionally producing an illumination of the obtained coating after drying at one wavelength at least causing activation of the semiconducting material, so as to remove at least 3% of the organic groups initially present in the coating and bound to the silicon atoms through a Si—C bond; as well as coatings with photocatalytic properties, materials, notably textiles, covered with such a coating and the use of such coatings and materials for photocatalysis.
    Type: Application
    Filed: April 7, 2014
    Publication date: February 11, 2016
    Applicants: Ecole Normale Superieure de Lyon, Universite Claude Bernard Lyon I, Centre National de la Recherche Scientifique
    Inventors: Damia GREGORI, Chantal GUILLARD, Frederic CHAPUT, Stephane PAROLA
  • Publication number: 20100144918
    Abstract: A method for preparing a colloidal solution of non-aggregated zirconia particles, comprising the following steps: a) providing a zirconium hydroxide sol, b) adding to said sol an inorganic acid according to an [inorganic acid]/[Zr] molar ratio of <0.5, c) performing the hydrothermal treatment of said sol, and d) recovering the colloidal solution of zirconia particles.
    Type: Application
    Filed: April 4, 2008
    Publication date: June 10, 2010
    Applicant: Essilor International (Compagnie Generale d'Optique
    Inventors: Frederic Chaput, Fabien Berit-Debat, Claudine Biver, Noemie Lesartre
  • Publication number: 20080199126
    Abstract: The method comprises emitting appropriate polarisation light waves on a photosensitive material for inducing therein a topographic modification through an aperture of at the most 100 mm bound by an opaque area, said layer being arranged at the most 100 mm away from the aperture.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 21, 2008
    Applicant: ESSILOR INTERNATIONAL COMPAGNIE GENERAL D'OPTIQUE
    Inventors: Nathalie Landraud, Jacques Peretti, Frederic Chaput, Georges Lampel, Jean-Pierre Boilot, Khalid Lahlil, Viatcheslav Safarov
  • Patent number: 7407284
    Abstract: Methods of coating at least a portion of a curved surface of a lens with a polarizing liquid. One method includes providing a lens having a curved surface and a lens axis; and rotating the lens about a rotation axis such that a polarizing liquid flows over at least a portion of the curved surface; the rotation axis being offset from the lens axis. Other methods are included. Apparatuses include ophthalmic lenses having polarized coatings formed according to any of the disclosed methods.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: August 5, 2008
    Assignee: Essilor International Compagnie Generale d'Optique
    Inventors: Richard Muisener, Frederic Chaput, Herbert Mosse
  • Publication number: 20070052921
    Abstract: Methods of coating at least a portion of a curved surface of a lens with a polarizing liquid. One method includes providing a lens having a curved surface and a lens axis; and rotating the lens about a rotation axis such that a polarizing liquid flows over at least a portion of the curved surface; the rotation axis being offset from the lens axis. Other methods are included. Apparatuses include ophthalmic lenses having polarized coatings formed according to any of the disclosed methods.
    Type: Application
    Filed: October 31, 2006
    Publication date: March 8, 2007
    Inventors: Richard Muisener, Frederic Chaput, Herbert Mosse
  • Patent number: 7128414
    Abstract: Methods of coating at least a portion of a curved surface of a lens with a polarizing liquid. One method includes providing a lens having a curved surface and a lens axis; and rotating the lens about a rotation axis such that a polarizing liquid flows over at least a portion of the curved surface; the rotation axis being offset from the lens axis. Other methods are included. Apparatuses include ophthalmic lenses having polarized coatings formed according to any of the disclosed methods.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: October 31, 2006
    Assignee: Essilor International Compagnie Cenerale d'Optique
    Inventors: Richard Muisener, Frederic Chaput, Herbert Mosse
  • Publication number: 20050280769
    Abstract: An ophthalmic lens comprises a transparent substrate and electro-optical means integrated with the substrate to perform an optical function in response to an electrical stimulus. The ophthalmic lens further comprises at least one photovoltaic cell integrated with the substrate to power the electro-optical means in response to an incident light, and optionally also a control circuit for controlling the electrical voltage. The photovoltaic cell may be incorporated in an opaque element occupying a small fraction of the area of the lens. Alternatively, the photovoltaic cell may be transparent and may cover at least a portion of the area of the lens.
    Type: Application
    Filed: June 10, 2005
    Publication date: December 22, 2005
    Inventors: Jean-Paul Cano, Frederic Chaput, Andreas Meyer, Toby Meyer
  • Publication number: 20050142350
    Abstract: Anti-scratch coating composition containing anisotropic particles, a corresponding coated substrate and its application in ophthalmic optics
    Type: Application
    Filed: August 5, 2004
    Publication date: June 30, 2005
    Applicant: Essilor International Compagnie Generale d'Optique
    Inventors: Jerome Douce, Frederic Chaput, John Biteau, Gilles Hochstetter
  • Publication number: 20040214115
    Abstract: A method for printing a near field photoinduced stable structure, and an optical fibre tip for implementing same.
    Type: Application
    Filed: January 26, 2004
    Publication date: October 28, 2004
    Inventors: Nathalie Landraud, Jacques Peretti, Frederic Chaput, Georges Lampel, Jean-Pierre Boilot, Khalid Lahlil, Viatcheslav Safarov
  • Publication number: 20040059052
    Abstract: The method consists in hydrolysing an initial volume Vsi of a precursor material comprising at least one polyalkoxysilane with a quantity of water such that 1 x ⁢   ⁢ H 2 ⁢ O x ⁢   ⁢ Si ≥ 10
    Type: Application
    Filed: June 30, 2003
    Publication date: March 25, 2004
    Inventors: John Biteau, Jean-Pierre Boilot, Frederic Chaput
  • Publication number: 20020120060
    Abstract: The method consists in hydrolysing an initial volume Vsi of a precursor material comprising at least one polyalkoxysilane with a quantity of water such that 1 x ⁢   ⁢ H 2 ⁢ O x ⁢ Si ≥ 10
    Type: Application
    Filed: June 15, 2001
    Publication date: August 29, 2002
    Applicant: Essilor International Compagnie Generale D'Optique
    Inventors: John Biteau, Jean-Pierre Boilot, Frederic Chaput
  • Patent number: 5017534
    Abstract: The disclosure concerns the fabrication, by chemical process, of a ceramic material belonging to the system:Ba.sub.x Sr.sub.1-x (Ti.sub.u Zr.sub.v Hf.sub.w)O.sub.3The fabrication method comprises the following steps:preparation of an alcohol solution containing at least one titanium, zirconium or hafnium alcoholate,preparation of a determined quantity of hydrated barium hydroxide and/or hydrated strontium hydroxide in solid state;under violent shaking, dissolving of the hydroxide or hydroxides in the alcohol solution, and continuing of the reaction until a paste is obtained,drying of the paste obtained.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: May 21, 1991
    Assignee: Compagnie Europeenne de Composants Electroniques -LCC
    Inventors: Frederic Chaput, Jean-Pierre Boilot