Patents by Inventor Daniel Vallet

Daniel Vallet 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: 10962687
    Abstract: The invention relates to an optical article provided with antireflection properties, comprising a substrate having at least one main surface coated with an antireflection coating comprising, starting from the substrate: a sub-layer comprising two adjacent layers formed from the same material, the sum of the thicknesses of the two adjacent layers being greater than or equal to 75 nm; and a multilayered antireflection stack comprising at least one high refractive index layer and at least one low refractive index layer, the deposition of the first of said two adjacent layers of the sub-layer having been carried out without ion assistance and the deposition of the second of said two adjacent layers of the sub-layer having been carried out under ion assistance. The invention also relates to a process for manufacturing such an optical article.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: March 30, 2021
    Assignee: Essilor International
    Inventors: Luc Nouvelot, Johann Rotte, Karin Scherer, Daniel Vallet
  • Publication number: 20160223716
    Abstract: The invention relates to an optical article provided with antireflection properties, comprising a substrate having at least one main surface coated with an antireflection coating comprising, starting from the substrate: a sub-layer comprising two adjacent layers formed from the same material, the sum of the thicknesses of the two adjacent layers being greater than or equal to 75 nm; and a multilayered antireflection stack comprising at least one high refractive index layer and at least one low refractive index layer, the deposition of the first of said two adjacent layers of the sub-layer having been carried out without ion assistance and the deposition of the second of said two adjacent layers of the sub-layer having been carried out under ion assistance. The invention also relates to a process for manufacturing such an optical article.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
    Inventors: Luc NOUVELOT, Johann ROTTE, Karin SCHERER, Daniel VALLET
  • Publication number: 20100183857
    Abstract: The invention relates to an optical article provided with antireflection properties, comprising a substrate having at least one main surface coated with an antireflection coating comprising, starting from the substrate: a sub-layer comprising two adjacent layers formed from the same material, the sum of the thicknesses of the two adjacent layers being greater than or equal to 75 nm; and a multilayered antireflection stack comprising at least one high refractive index layer and at least one low refractive index layer, the deposition of the first of said two adjacent layers of the sub-layer having been carried out without ion assistance and the deposition of the second of said two adjacent layers of the sub-layer having been carried out under ion assistance. The invention also relates to a process for manufacturing such an optical article.
    Type: Application
    Filed: June 12, 2008
    Publication date: July 22, 2010
    Applicant: Essilor International (Compagnie Generale d'Optique)
    Inventors: Luc Nouvelot, Johann Rotte, Karin Scherer, Daniel Vallet