Patents by Inventor Conrad HÖFENER

Conrad HÖFENER 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).

  • Optical article comprising an antireflective coating in the visible region for low luminance conditions
    Patent number: 10481413
    Abstract: This invention relates to an ophthalmic lens comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilayered antireflective coating comprising a stack of at least one high refractive index layer (HI) having a refractive index higher than or equal to 1.55 and at least one low refractive index layer (LI) having a refractive index lower than 1.55, characterized in that said multilayered antireflective coating has: a mean light reflection factor in the visible region for photopic vision Rv lower than or equal to 2.5%, preferably lower than or equal to 0.9%, for at least an angle of incidence lower than 35°; a mean light reflection factor in the visible region for scotopic vision Rv? lower than or equal to 0.5%, preferably lower than or equal to 0.4%, for at least an angle of incidence lower than 35°.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: November 19, 2019
    Assignee: RUPP + HUBRACH OPTIK GMBH
    Inventors: Conrad Höfener, Thorsten Stein
  • Optical Article Comprising an Antireflective Coating in the Visible Region for Low Luminance Conditions
    Publication number: 20180067338
    Abstract: This invention relates to an ophthalmic lens comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilayered antireflective coating comprising a stack of at least one high refractive index layer (HI) having a refractive index higher than or equal to 1.55 and at least one low refractive index layer (LI) having a refractive index lower than 1.55, characterized in that said multilayered antireflective coating has: a mean light reflection factor in the visible region for photopic vision Rv lower than or equal to 2.5%, preferably lower than or equal to 0.9%, for at least an angle of incidence lower than 35°; a mean light reflection factor in the visible region for scotopic vision Rv? lower than or equal to 0.5%, preferably lower than or equal to 0.4%, for at least an angle of incidence lower than 35°.
    Type: Application
    Filed: March 13, 2015
    Publication date: March 8, 2018
    Applicant: RUPP + HUBRACH OPTIK GMBH
    Inventors: Conrad HÖFENER, Thorsten STEIN