Patents by Inventor Marc Ferrari
Marc Ferrari 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).
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Patent number: 11480806Abstract: A telescope includes an initial telescope comprising a concave first mirror and a convex second mirror that are configured so that they form, from a light beam coming from infinity, an image called the intermediate image in a focal plane called the intermediate focal plane, the intermediate image having a largest dimension along an X-axis perpendicular to an optical axis of the telescope, a segmenting module comprising a first set of n segmenting mirrors that are placed downstream of the intermediate focal plane and that are configured to divide the intermediate image obtained from the intermediate focal plane into n sub-images, a second set of n refocusing mirrors that are configured to reimage the n sub-images into n images in a focal plane of the telescope, the images being arranged in the focal plane so as to decrease the dimension along X containing the n images, a detecting device placed in the focal plane.Type: GrantFiled: September 28, 2020Date of Patent: October 25, 2022Assignees: THALES, UNIVERSITE D'AIX-MARSEILLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Grégoire Hein, Marc Ferrari, Nicolas Tetaz, Wilfried Jahn, Emmanuel Hugot
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Publication number: 20210096383Abstract: A telescope includes an initial telescope comprising a concave first mirror and a convex second mirror that are configured so that they form, from a light beam coming from infinity, an image called the intermediate image in a focal plane called the intermediate focal plane, the intermediate image having a largest dimension along an X-axis perpendicular to an optical axis of the telescope, a segmenting module comprising a first set of n segmenting mirrors that are placed downstream of the intermediate focal plane and that are configured to divide the intermediate image obtained from the intermediate focal plane into n sub-images, a second set of n refocusing mirrors that are configured to reimage the n sub-images into n images in a focal plane of the telescope, the images being arranged in the focal plane so as to decrease the dimension along X containing the n images, a detecting device placed in the focal plane.Type: ApplicationFiled: September 28, 2020Publication date: April 1, 2021Inventors: Grégoire HEIN, Marc FERRARI, Nicolas TETAZ, Wilfried JAHN, Emmanuel HUGOT
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Patent number: 9272472Abstract: A method of shaping an aspherical optical element is provided that includes the steps of fastening an optical element blank to a ring, the blank presenting an optical surface that is to be shaped and a surface referred to as a rear surface; applying forces and moments to the ring in order to deform the optical element and its optical surface, which element is fastened to the ring; using abrasion to shape said deformed optical surface so as to restore a spherical or planar shape thereto; and extracting the blank from the ring so as to release the stresses deforming said shaped optical surface so as to allow it to acquire the desired aspherical shape. The method also includes the step of fastening the blank to the ring is performed by bonding the optical surface or the rear surface to a surface of the ring with a layer of adhesive.Type: GrantFiled: May 13, 2013Date of Patent: March 1, 2016Assignee: THALES SESOInventors: Christian de Mollerat du Jeu, Marc Ferrari, Gerard Lemaitre, Emmanuel Hugot
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Patent number: 9097886Abstract: The invention relates to a device for correcting at least one optical aberration, of known evolution of an optical system, the device comprising: a deformable mirror (1) having a contour; means (2) for deforming the mirror; characterized in that the mirror (1) has a geometry selected such that the contour of the mirror (1) is defined from a composite function of said at least one aberration and in that the means (2) for deforming the mirror are adapted to apply a flexing moment on the edges of the mirror, the deformable mirror being concave or convex when it is deformed.Type: GrantFiled: April 18, 2012Date of Patent: August 4, 2015Assignee: CENTRE NATIONAL D'ETUDES SPATIALESInventors: Marie Laslandes, Marc Ferrari, Emmanuel Hugot
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Patent number: 8876306Abstract: Optical devices can comprise a deformable mirror and a system for deforming said mirror. A deformation system comprises a first mechanical structure comprising a first surround, one or more electromechanical actuators attached to the first mechanical structure, a second mechanical structure comprising a substantially planar bottom and a second surround, both deformable, the bottom being attached to the first surround, the second surround being attached to the surround of the mirror, a rigid stud being attached to the bottom, substantially planar and centerd on the bottom, the electromechanical actuator or actuators exerting predetermined forces or bending moments on the stud so as to generate a particular distribution of the bending moments on the surround of the mirror, deforming it according to a geometrical form representative or of one or more predetermined geometrical aberrations.Type: GrantFiled: September 14, 2012Date of Patent: November 4, 2014Assignees: Thales, Centre National de la Recherche Scientifique, Centre National d'Etudes Spatiales CNES, Universite d'Aix MarseilleInventors: Emmanuel Hugot, Marie Laslandes, Marc Ferrari, Arnaud Liotard
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Publication number: 20130306224Abstract: A method of shaping an aspherical optical element is provided that includes the steps of fastening an optical element blank to a ring, the blank presenting an optical surface that is to be shaped and a surface referred to as a rear surface; applying forces and moments to the ring in order to deform the optical element and its optical surface, which element is fastened to the ring; using abrasion to shape said deformed optical surface so as to restore a spherical or planar shape thereto; and extracting the blank from the ring so as to release the stresses deforming said shaped optical surface so as to allow it to acquire the desired aspherical shape. The method also includes the step of fastening the blank to the ring is performed by bonding the optical surface or the rear surface to a surface of the ring with a layer of adhesive.Type: ApplicationFiled: May 13, 2013Publication date: November 21, 2013Inventors: Christian de Mollerat du Jeu, Marc Ferrari, Gerard Lemaitre, Emmanuel Hugot
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Publication number: 20130070355Abstract: Optical devices can comprise a deformable mirror and a system for deforming said mirror. A deformation system comprises a first mechanical structure comprising a first surround, one or more electromechanical actuators attached to the first mechanical structure, a second mechanical structure comprising a substantially planar bottom and a second surround, both deformable, the bottom being attached to the first surround, the second surround being attached to the surround of the mirror, a rigid stud being attached to the bottom, substantially planar and centred on the bottom, the electromechanical actuator or actuators exerting predetermined forces or bending moments on the stud so as to generate a particular distribution of the bending moments on the surround of the mirror, deforming it according to a geometrical form representative or of one or more predetermined geometrical aberrations.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Applicants: THALES, UNIVERSITE D'AIX MARSEILLE, CENTRE NATIONAL D'ETUDES SPATIALES CNES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Emmanuel HUGOT, Marie LASLANDES, Marc FERRARI, Arnaud LIOTARD
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Publication number: 20120275041Abstract: The invention relates to a device for correcting at least one optical aberration, of known evolution of an optical system, the device comprising: a deformable mirror (1) having a contour; means (2) for deforming the mirror; characterised in that the mirror (1) has a geometry selected such that the contour of the mirror (1) is defined from a composite function of said at least one aberration and in that the means (2) for deforming the mirror are adapted to apply a flexing moment on the edges of the mirror, the deformable mirror being concave or convex when it is deformed.Type: ApplicationFiled: April 18, 2012Publication date: November 1, 2012Inventors: Marie Laslandes, Marc Ferrari, Emmanuel Hugot
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Patent number: 7964122Abstract: A method of shaping an aspherical optical element, such as a composite mirror element, the method comprising the following steps: fastening, preferably by adhesive, an optical element blank, presenting an optical surface that is to be shaped, to the inside of a ring, the optical surface of the blank projecting beyond an edge of said ring; applying forces and moments to the perimeter of the ring in such a manner as to deform it in controlled manner, thereby also deforming the optical surface of the blank fastened to its inside; shaping said deformed optical surface by abrasion so as to restore it to a shape that is spherical or planar; and extracting the blank from the ring so as to release the stresses deforming said shaped optical surface, thereby enabling it to acquire the desired aspherical shape.Type: GrantFiled: June 17, 2009Date of Patent: June 21, 2011Assignees: Societe Europeenne de Systemes Optiques, Centre National de la Recherche ScientifiqueInventors: Christian de Mollerat du Jeu, Jean-François Carre, Marc Ferrari, Gérard Lemaitre, Emmanuel Hugot
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Publication number: 20090315202Abstract: A method of shaping an aspherical optical element, such as a composite mirror element, the method comprising the following steps: fastening, preferably by adhesive, an optical element blank, presenting an optical surface that is to be shaped, to the inside of a ring, the optical surface of the blank projecting beyond an edge of said ring; applying forces and moments to the perimeter of the ring in such a manner as to deform it in controlled manner, thereby also deforming the optical surface of the blank fastened to its inside; shaping said deformed optical surface by abrasion so as to restore it to a shape that is spherical or planar; and extracting the blank from the ring so as to release the stresses deforming said shaped optical surface, thereby enabling it to acquire the desired aspherical shape.Type: ApplicationFiled: June 17, 2009Publication date: December 24, 2009Inventors: Christian de Mollerat du Jeu, Jean-Francois Carre, Marc Ferrari, Gerard Lemaitre, Emmanuel Hugot
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Patent number: 7073424Abstract: The invention concerns the field of ammunitions equipped with their fuze, found on the battlefield. Such ammunitions represent a major pyrotechnic risk. The problem consists in destroying the fuze so as to be able to dismantle said ammunition. The method consists in placing said ammunition (1) in a closed chamber (5) to carry out at least once the following cycle: depressurizing the chamber (5), dissolving the fuze (2) of the ammunition (1) with a liquid corrosive agent, drawing off the gaseous effluents towards an auxiliary chamber (7), reopening the chamber (5) after dissolving the fuze (2), removing the ammunition (1), recovering the mixture resulting from the attack of the fuze (2) by the liquid corrosive agent (6) and treating it by pyrolysis.Type: GrantFiled: May 17, 2002Date of Patent: July 11, 2006Assignee: SNPE Materiaux EnergetiquesInventors: Marc Ferrari, Marie Gaudre, Jean-Michel Tauzia
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Publication number: 20040107824Abstract: The invention concerns the field of ammunitions equipped with their rockets, found on the battlefield. Such ammunitions represent a major pyrotechnic risk. The problem consists in destroying the rocket so as to be able to dismantle said ammunition. The method consists in placing said ammunition (1) in a closed chamber (5) to carry out at least once the following cycle: depressurizing the chamber (5), dissolving the rocket (2) of the ammunition (1) with a liquid corrosive agent, drawing off the gaseous effluents towards an auxiliary chamber (7), reopening the chamber (5) after dissolving the rocket (2), removing the ammunition (1), recovering the mixture resulting from the attack of the rocket (2) by the liquid corrosive agent (6) and treating it by pyrolysis.Type: ApplicationFiled: September 11, 2003Publication date: June 10, 2004Inventors: Marc Ferrari, Marie Gaudre, Jean-Michel Tauzia