Patents by Inventor Denis DOUILLET

Denis DOUILLET 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).

  • Device for generating a secondary source by laser-material interaction comprising an optical device for controlling the orientation and the position of a surface in movement
    Patent number: 8654344
    Abstract: A device for generating a secondary source from a primary optical source emitting a first optical beam focused onto a surface in movement, with which said first beam interacts so as to generate a secondary beam, includes an optical device for controlling the orientation and position of said surface to determine the orientation and position of the emission point of said secondary source on said surface. The device comprises: a control laser beam split into two branches, a fixed reference beam and a mobile analysis beam reflected by the surface in movement; means for making said reference and analysis beams interfere to generate interference fringes; means for imaging the interference fringes carrying information about the orientation and position of said surface; means for analyzing said interference images; and means for generating a feedback loop for controlling the orientation and position of said surface in movement based on the analysis.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: February 18, 2014
    Assignees: Ecole Polytechnique, Ecole Nationale Superieure de Techniques Avancees
    Inventors: Antonin Borot, Rodrigo Lopez-Martens, Jean-Paul Geindre, Denis Douillet
  • Device for Generating a Secondary Source by Laser-Material Interaction Comprising an Optical Device for Controlling the Orientation and the Position of a Surface in Movement
    Publication number: 20120126148
    Abstract: A device for generating a secondary source from a primary optical source emitting a first optical beam focused onto a surface in movement, with which said first beam interacts so as to generate a secondary beam, includes an optical device for controlling the orientation and position of said surface to determine the orientation and position of the emission point of said secondary source on said surface. The device comprises: a control laser beam split into two branches, a fixed reference beam and a mobile analysis beam reflected by the surface in movement; means for making said reference and analysis beams interfere to generate interference fringes; means for imaging the interference fringes carrying information about the orientation and position of said surface; means for analyzing said interference images; and means for generating a feedback loop for controlling the orientation and position of said surface in movement based on the analysis.
    Type: Application
    Filed: January 13, 2012
    Publication date: May 24, 2012
    Applicants: Ecole Nationale Superieure De Techniques Avancees, Ecole Polytechnique
    Inventors: Antonin BOROT, Rodrigo LOPEZ-MARTENS, Jean-Paul GEINDRE, Denis DOUILLET