Patents by Inventor Joel BENOIST

Joel BENOIST 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: 10998691
    Abstract: A method and system for adjusting the profile of a laser wavefront formed by at least a laser beam to a desired laser wavefront profile, the laser beam or beams presenting random phases and intensities, comprises a mixing module, configured to generate, from interference phenomena among the laser beam or beams, a laser field, a second intensity measuring module configured to measure the mixed intensities of the laser field portions, a calculation unit configured to calculate one or several phase correction values of the phase of the laser beam or the phases of laser beams, from the intensities of the laser beams, the mixed intensities and one or several predetermined target phases, and a phase adjustment module configured to apply the phase correction value or values obtained from the calculation unit to the laser beam phases.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: May 4, 2021
    Assignees: COMPAGNIE INDUSTRIELLE DES LASERS CILAS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSITÉ DE LIMOGES
    Inventors: Paul Armand, Jérémy Saucourt, Vincent Kermene, Agnès Desfarges-Berthelemot, Joël Benoist, Alain Barthelemy, Julien Leval
  • Publication number: 20190221992
    Abstract: A method and system for adjusting the profile of a laser wavefront formed by at least a laser beam to a desired laser wavefront profile, the laser beam or beams presenting random phases and intensities, comprises a mixing module, configured to generate, from interference phenomena among the laser beam or beams, a laser field, a second intensity measuring module configured to measure the mixed intensities of the laser field portions, a calculation unit configured to calculate one or several phase correction values of the phase of the laser beam or the phases of laser beams, from the intensities of the laser beams, the mixed intensities and one or several predetermined target phases, and a phase adjustment module configured to apply the phase correction value or values obtained from the calculation unit to the laser beam phases.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 18, 2019
    Applicants: COMPAGNIE INDUSTRIELLE DES LASERS CILAS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSITÉ DE LIMOGES
    Inventors: Paul Armand, Jérémy Saucourt, Vincent Kermene, Agnès Desfarges-Berthelemot, Joël Benoist, Alain Barthelemy, Julien Leval
  • Patent number: 10116114
    Abstract: According to the invention, a plurality of elementary laser beams (fi) are generated, the phases of which are adjusted by an electro-optical feedback loop (6, 7i, 8i, 9) implementing the matrix equation of a phase-contrast filtering device (6).
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: October 30, 2018
    Assignees: COMPAGNIE INDUSTRIELLE DES LASERS CILAS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSITE DE LIMOGES
    Inventors: Vincent Kermene, Agnes Desfarges-Berthelemot, Paul Armand, Joel Benoist, David Kabeya, Alain Barthelemy, David Sabourdy, Jean-Eucher Montagne
  • Publication number: 20170324213
    Abstract: According to the invention, a plurality of elementary laser beams (fi) are generated, the phases of which are adjusted by an electro-optical feedback loop (6, 7i, 8i, 9) implementing the matrix equation of a phase-contrast filtering device (6).
    Type: Application
    Filed: October 14, 2015
    Publication date: November 9, 2017
    Inventors: Vincent KERMENE, Agnes DESFARGES-BERTHELEMOT, Paul ARMAND, Joel BENOIST, David KABEYA, Alain BARTHELEMY, David SABOURDY, Jean-Eucher MONTAGNE