Patents Assigned to Essilor International Compagnie Cenerale d'Optique
  • Method and a device for working the periphery of an ophthalmic lens for eyeglasses
    Publication number: 20090305614
    Abstract: A method of working the periphery of an ophthalmic lens (L), the periphery of the lens possessing an edge face (C) and the method including edging the edge face of the lens by machining with a first grindwheel (31) mounted to rotate about an axis of rotation (A4). According to the invention, during the edging, in addition to being free to rotate about the axis of rotation, the first grindwheel possesses two degrees of freedom to move in tilting about two distinct pivot directions that are substantially transverse to its axis of rotation.
    Type: Application
    Filed: March 22, 2006
    Publication date: December 10, 2009
    Applicant: ESSILOR INTERNATIONAL COMPAGNIE CENERALE D'OPTIQUE
    Inventors: Michel Nauche, Gael Mazoyer
  • Methods for coating lenses
    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