Patents by Inventor Jean-Louis Martin

Jean-Louis Martin 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: 9411140
    Abstract: A method and system for calibrating an optical device having a spatial optical modulator (6) and including: an optical lens (8) of a large numerical aperture, capable of receiving an incident beam and/or collecting an optical beam reflected by a sample; a camera (14) disposed in a plane optically conjugate with the focal plane of the lens (8); and a spatial optical modulator (6) disposed on the optical beam upstream of the camera (14). The method includes the following steps consisting in: acquiring three-dimensional images of the PSF in terms of intensity in a plane conjugate with the focal plane of the lens (8), reconstructing the profile in terms of amplitude and/or phase of the beam using a phase diversity algorithm, and determining the respective influence functions of a plurality of elements P1, . . . , PN of the spatial optical modulator (6) on the profile in terms of the amplitude A and/or phase ? of the beam.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: August 9, 2016
    Assignee: ECOLE POLYTECHNIQUE
    Inventors: Delphine Debarre, Thibault Vieille, Emmanuel Beaurepaire, Jean-Louis Martin
  • Publication number: 20140367591
    Abstract: A module is provided for a multi-photon imaging system for simultaneously exciting chromophores of a specimen. A first femtosecond laser source emits a first pulsed excitation beam having a repetition rate 1/T and a wavelength ?1 exciting a first chromophores, the absorbed photons originating from the first excitation beam. A second femtosecond laser source emits a second pulsed excitation beam with a wavelength ?2 exciting a second chromophores, the absorbed photons originating from the second beam; the first beam including an “excitation” part exciting the specimen and a “pumping” part acting as a pump beam for exciting the second laser source to synchronize the second laser source with the first laser source. An optical delay line superimposes spatially and temporally the second beam and the excitation part of the first beam to excite at least a third chromophore, the absorbed photons originating from the first and second excitation beams.
    Type: Application
    Filed: February 1, 2013
    Publication date: December 18, 2014
    Inventors: Pierre Mahou, Emmanuel Jean Marc Beaurepaire, Delphine Debarre, Willy Supatto, Jean Louis Martin
  • Publication number: 20130278744
    Abstract: A method and system for calibrating an optical device having a spatial optical modulator (6) and including: an optical lens (8) of a large numerical aperture, capable of receiving an incident beam and/or collecting an optical beam reflected by a sample; a camera (14) disposed in a plane optically conjugate with the focal plane of the lens (8); and a spatial optical modulator (6) disposed on the optical beam upstream of the camera (14). The method includes the following steps consisting in: acquiring three-dimensional images of the PSF in terms of intensity in a plane conjugate with the focal plane of the lens (8), reconstructing the profile in terms of amplitude and/or phase of the beam using a phase diversity algorithm, and determining the respective influence functions of a plurality of elements P1, . . . , PN of the spatial optical modulator (6) on the profile in terms of the amplitude A and/or phase ? of the beam.
    Type: Application
    Filed: November 21, 2011
    Publication date: October 24, 2013
    Applicant: ECOLE POLYTECHNIQUE
    Inventors: Delphine Debarre, Thibault Vieille, Emmanuel Beaurepaire, Jean-Louis Martin
  • Patent number: 8284483
    Abstract: A method for acquiring signals in laser scanning microscopy, includes the steps of: moving a focused optical excitation beam relative to an object to be measured so that the focus point of the beam follows a predetermined path in the space of the object; and acquiring optical measurement signals along the path according to at least one acquisition parameter; characterized in that the path of the excitation beam is determined so as to substantially minimize the variations of the optical properties of at least one portion of the environments crossed by the excitation beam between consecutive acquisitions, and in that at least one acquisition parameter among the acquisition parameters is modulated during the movement of the excitation beam. A device for implementing the method is also described.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: October 9, 2012
    Assignee: Ecole Polytechnique
    Inventors: Emmanuel Jean-Marc Beaurepaire, Israel Veilleux, Nicolas Olivier, Delphine Malvina Daniele Marie Debarre, Jean-Louis Martin
  • Patent number: 8227767
    Abstract: A method for the dimensional characterization of a structured material, in which method: an excitation laser beam suitable for coherent nonlinear microscopy is generated, this excitation laser beam being focused in a focal volume within the structured material; signals emitted by the structured material are detected; a plurality of emission patterns, each corresponding to one particular shape of the focal volume, is produced, the particular shapes being obtained for various non-Gaussian spatial profiles of the excitation laser beam wavefront; and on the basis of the emission patterns thus produced, dimensional characteristics of the structured material are deduced therefrom.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: July 24, 2012
    Assignee: Ecole Polytechnique
    Inventors: Emmanuel Jean-Marc Beaurepaire, Nicolas Olivier, Delphine Debarre, Marie-Claire Schanne-Klein, Jean-Louis Martin
  • Publication number: 20110296562
    Abstract: A method for acquiring signals in laser scanning microscopy, includes the steps of: moving a focused optical excitation beam relative to an object to be measured so that the focus point of the beam follows a predetermined path in the space of the object; and acquiring optical measurement signals along the path according to at least one acquisition parameter; characterised in that the path of the excitation beam is determined so as to substantially minimise the variations of the optical properties of at least one portion of the environments crossed by the excitation beam between consecutive acquisitions, and in that at least one acquisition parameter among the acquisition parameters is modulated during the movement of the excitation beam. A device for implementing the method is also described.
    Type: Application
    Filed: February 3, 2010
    Publication date: December 1, 2011
    Applicant: ECOLE POLYTECHNIQUE
    Inventors: Emmanuel Jean-Marc Beaurepaire, Israël Veilleux, Nicolas Olivier, Delphine Malvina Danièle Marie Debarre, Jean-Louis Martin
  • Publication number: 20110147616
    Abstract: A method for the dimensional characterization of a structured material, in which method: an excitation laser beam suitable for coherent nonlinear microscopy is generated, this excitation laser beam being focused in a focal volume within the structured material; signals emitted by the structured material are detected; a plurality of emission patterns, each corresponding to one particular shape of the focal volume, is produced, the particular shapes being obtained for various non-Gaussian spatial profiles of the excitation laser beam wavefront; and on the basis of the emission patterns thus produced, dimensional characteristics of the structured material are deduced therefrom.
    Type: Application
    Filed: June 26, 2009
    Publication date: June 23, 2011
    Applicant: ECOLE POLYTECHNIQUE
    Inventors: Emmanuel Jean-Marc Beaurepaire, Nicolas Olivier, Delphine Debarre, Marie-Claire Schanne-Klein, Jean-Louis Martin
  • Patent number: 7259118
    Abstract: A method for insulating an article requiring resistance against repeated exposure to temperatures exceeding 900° C. uses saline soluble, non-metallic, amorphous, inorganic oxide, refractory fibrous materials as thermal insulation. The compositions that can be used for that purpose include vitreous fibers based on SiO2, CaO, MgO, and optionally, A2O3.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: August 21, 2007
    Assignee: The Morgan Crucible Company PLC
    Inventors: Gary Anthony Jubb, Jean-Louis Martin
  • Patent number: 6987076
    Abstract: A composite material comprises inorganic-bonded alkaline earth silicate fibers in which any bonding agents or fillers comprise low amounts of aluminum so that the composite material comprises less than 1% by weight aluminum expressed as Al2—O3.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: January 17, 2006
    Assignee: The Morgan Crucible Company plc
    Inventors: Gary Anthony Jubb, Jean-Louis Martin, Jane Miller, Arlette Wotovic, Lindsay John Harold Todd
  • Patent number: 6861381
    Abstract: A fibre is disclosed having a maximum use temperature of 1200° C. or more which comprises: SiO2>64.25 wt % CaO>18 wt % MgO<17 wt % and in which the amount of MgO in mol % is greater than the amount of CaO in mol %. Such fibers have high solubility and low dustiness.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: March 1, 2005
    Assignee: The Morgan Crucible Company PLC
    Inventors: Gary Anthony Jubb, Jean-Louis Martin
  • Publication number: 20050014624
    Abstract: Disclosed is use of a vitreous inorganic fiber in the knowledge that it has a composition meeting the criterion that the calculated sum of the free energies of hydration of the compounds that would or could be present at equilibrium (on the basis of knowledge, informed belief or reasonable assumption) is more negative than ?10 kcal/100 grams of composition. Such compositions are saline soluble.
    Type: Application
    Filed: April 28, 2004
    Publication date: January 20, 2005
    Inventors: Gary Jubb, Jean-Louis Martin
  • Publication number: 20040248195
    Abstract: The invention is relative to the various uses of a novel enzyme family, referred to as THYX, capable of catalyzing the synthesis of thymidine 5′-monophosphate in the absence of an active thymidylate synthase enzyme (ThyA).
    Type: Application
    Filed: July 19, 2004
    Publication date: December 9, 2004
    Inventors: Hannu Myllykallio, Ursula Liebl, Damien Leduc, Gerard Lipowski, Jean-Louis Martin
  • Patent number: 6180546
    Abstract: Disclosed is use of a vitreous inorganic fiber in the knowledge that it has a composition meeting the criterion that the calculated sum of the free energies of hydration of the compounds that would or could be present at equilibrium (on the basis of knowledge, informed belief or reasonable assumption) is more negative than −10 kcal/100 grams of composition. Such compositions are saline soluble.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: January 30, 2001
    Assignee: The Morgan Crucible Company plc
    Inventors: Gary Anthony Jubb, Jean-Louis Martin
  • Patent number: 6085352
    Abstract: A goaltender's blocker has an articulated blocking pad made of segments attached to each other by means of hinges. One result of this construction is to allow the lower end of the blocking pad to pivot outwardly when pressed against the playing surface, so as to allow the goaltender to perform the paddle-down maneuver in a comfortable, ergonomically correct and technically sound manner.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: July 11, 2000
    Inventor: Jean-Louis Martin
  • Patent number: 5994247
    Abstract: Disclosed is use of a vitreous inorganic fiber in the knowledge that it has a composition meeting the criterion that the calculated sum of the free energies of hydration of the compounds that would or could be present at equilibrium (on the basis of knowledge, informed belief or reasonable assumption) is more negative than -10 kcal/100 grams of composition. Such compositions are saline soluble.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: November 30, 1999
    Assignee: The Morgan Crucible Company plc
    Inventors: Gary Anthony Jubb, Jean-Louis Martin