Patents by Inventor Mathieu Maillard
Mathieu Maillard 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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Publication number: 20210072431Abstract: A liquid lens that includes a first window, a second window, and a cavity disposed between the first window and the second window; a first and second liquid disposed within the cavity, the first and second liquid substantially immiscible with each other and having different refractive indices such that an interface between the first and second liquid defines a variable lens, at least a portion of the first liquid disposed within a first portion of the cavity, the second liquid disposed within a second portion of the cavity; a common electrode in electrical communication with the first liquid; and a driving electrode disposed on a sidewall of the cavity and insulated from the first liquid and the second liquid by an insulating element, wherein the insulating element comprises an insulating outer layer in contact with the liquids, the insulating outer layer comprising a lanthanide series oxide.Type: ApplicationFiled: December 13, 2018Publication date: March 11, 2021Applicants: CORNING INCORPORATED, UNIVERSITE CLAUDE BERNARD LYON 1, Centre National De La Recherche Scientifique-CNRSInventors: Bruno Berge, Gwenael Bonfante, Benjamin Burger, Stéphanie Chevalliot, Mathieu Maillard, Bérangère Toury-Pierre
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Patent number: 9414908Abstract: According to a first aspect, the invention relates to an intraocular variable focus implant comprising a non-conducting liquid with a melting temperature above 0° C., a conducting liquid, a liquid interface formed by the non-conducting and conducting liquids, a first electrode in contact with the conducting liquid, a second electrode insulated from the conducting liquid, wherein the liquid interface is movable by electro wetting according to a change in a voltage applied between the first and second electrodes.Type: GrantFiled: April 13, 2012Date of Patent: August 16, 2016Assignee: PARROT DRONESInventor: Mathieu Maillard
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Patent number: 9164272Abstract: An electrowetting optical device is provided comprising a conductive liquid and a non-conductive liquid, the liquids being non miscible, having different refractive indices and forming an interface, wherein the conductive liquid comprises from 5% by weight of a fluorinated salt, based the total weight of the conductive liquid. An apparatus comprising said electrowetting optical device is described as well.Type: GrantFiled: September 13, 2011Date of Patent: October 20, 2015Assignee: PARROTInventors: Mathieu Maillard, Geraldine Malet, Matthias Stefan Ober, Daniel L. Dermody
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Patent number: 9074168Abstract: A multi-phase liquid composition comprising a conductive liquid and a non-conductive liquid, said liquids being non miscible, wherein the conductive liquid comprises more than 90% up to 99.9% by weight of a first component having a surface tension above 45 mN/m and comprising water, salt and at least one freezing point lowering agent, and from 0.01% to less than 10% by weight of a second component having a surface tension below 30 mN/m and comprising at least one first compound, wherein said at least one first compound is a non ionic surfactant.Type: GrantFiled: August 6, 2009Date of Patent: July 7, 2015Assignee: VARIOPTIC S.A.Inventors: Mathieu Maillard, Liana Moreau, Christopher J. Tucker, Caroline Woelfle-Gupta, Daniel Lawrence Dermody
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Publication number: 20150124311Abstract: A method for controlling an electrowetting optical device is disclosed. The method involves applying, in a dielectric enclosure of the electrowetting optical device, a direct current voltage or an alternative current voltage having a frequency f lower than 10 Hz to a liquid/liquid interface formed by a non-conductive liquid and a conductive liquid and movable by electrowetting under the application of the voltage. The conductive liquid comprises at least one multivalent salt, and the dielectric enclosure is coated with both a poly-para-xylylene linear polymer and a low surface energy coating.Type: ApplicationFiled: April 16, 2013Publication date: May 7, 2015Inventors: Bruno Berge, Mathieu Maillard
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Publication number: 20140081396Abstract: According to a first aspect, the invention relates to an intraocular variable focus implant comprising a non-conducting liquid with a melting temperature above 0° C., a conducting liquid, a liquid interface formed by the non-conducting and conducting liquids, a first electrode in contact with the conducting liquid, a second electrode insulated from the conducting liquid, wherein the liquid interface is movable by electro wetting according to a change in a voltage applied between the first and second electrodes.Type: ApplicationFiled: April 13, 2012Publication date: March 20, 2014Applicant: PARROT SAInventor: Mathieu Maillard
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Patent number: 8649102Abstract: The invention concerns an optical electrowetting device a body comprising at least a first external surface and a second internal surface with a conical shape; a liquid-liquid interface between a first and a second immiscible liquids, the first liquid being a conducting liquid and the second liquid being an insulating liquid, wherein the liquid-liquid interface is able to move on the second internal surface by electrowetting effect; a first electrode in contact with the first liquid; a second electrode insulated from the first liquid by an insulating layer, the second electrode comprising at least a first electrical conductive track to be connected to a voltage source and extending from the first external surface of the body to the second internal surface; and a first layer covering the second internal surface of said body and being covered by the insulating layer, wherein the shape of the liquid-liquid interface is controllable by application of at least a first voltage between the first electrode and the fiType: GrantFiled: December 23, 2009Date of Patent: February 11, 2014Assignee: Parrot S.A.Inventors: Bruno Berge, Nicolas Verplanck, Mathieu Maillard, Julien Legrand
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Publication number: 20130301109Abstract: An electrowetting optical device is provided comprising a conductive liquid and a non-conductive liquid, the liquids being non miscible, having different refractive indices and forming an interface, wherein the conductive liquid comprises from 5% by weight of a fluorinated salt, based the total weight of the conductive liquid. An apparatus comprising said electrowetting optical device is described as well.Type: ApplicationFiled: September 13, 2011Publication date: November 14, 2013Applicant: PARROTInventors: Mathieu Maillard, Geraldine Malet, Matthias Stefan Ober, Daniel L. Dermody
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Patent number: 8400558Abstract: A method of controlling a liquid lens in an imaging device, the liquid lens including a liquid-liquid interface between first and second immiscible liquids deformable by electrowetting; a chamber containing the first and second liquids, the first liquid being an insulating liquid and the second liquid being a conducting liquid; and a first electrode in contact with the second liquid and at least one second electrode insulated from the second liquid by an insulating layer, the first and second electrodes being arranged to allow a plurality of voltages levels to be applied between the first and second electrodes to control the curvature of the liquid-liquid interface, the method including: determining motion data representative of a movement of the imaging device; determining focusing data representative of a desired focus of the imaging device; determining the plurality of voltage levels to be applied between the first and second electrodes, wherein each of the voltage levels is a function of the motion data,Type: GrantFiled: December 12, 2008Date of Patent: March 19, 2013Assignee: Varioptic, S.A.Inventors: Bruno Berge, Mathieu Maillard, Nicolas Verplanck
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Publication number: 20120026596Abstract: The invention concerns an optical electrowetting device a body comprising at least a first external surface and a second internal surface with a conical shape; a liquid-liquid interface between a first and a second immiscible liquids, the first liquid being a conducting liquid and the second liquid being an insulating liquid, wherein the liquid-liquid interface is able to move on the second internal surface by electrowetting effect; a first electrode in contact with the first liquid; a second electrode insulated from the first liquid by an insulating layer, the second electrode comprising at least a first electrical conductive track to be connected to a voltage source and extending from the first external surface of the body to the second internal surface; and a first layer covering the second internal surface of said body and being covered by the insulating layer, wherein the shape of the liquid-liquid interface is controllable by application of at least a first voltage between the first electrode and the fiType: ApplicationFiled: December 23, 2009Publication date: February 2, 2012Applicant: VARIOPTIC S.A.Inventors: Bruno Berge, Nicolas Verplanck, Mathieu Maillard, Julien Legrand
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Publication number: 20110141539Abstract: A multi-phase liquid composition comprising a conductive liquid and a non-conductive liquid, said liquids being non miscible, wherein the conductive liquid comprises more than 90% up to 99.9% by weight of a first component having a surface tension above 45 mN/m and comprising water, salt and at least one freezing point lowering agent, and from 0.01% to less than 10% by weight of a second component having a surface tension below 30 mN/m and comprising at least one first compound, wherein said at least one first compound is a non ionic surfactant.Type: ApplicationFiled: August 6, 2009Publication date: June 16, 2011Applicant: VARIOPTICInventors: Mathieu Maillard, Liana Moreau, Christopher J. Tucker, Caroline Woelfle-Gupta, Daniel Lawrence Dermody
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Patent number: 7940467Abstract: The invention concerns an electrowetting optical device comprising a chamber (15) comprising first and second immiscible liquids (16, 18) contacting each other at a liquid-liquid interface (19), the first liquid being an insulating liquid and the second liquid being a conducting liquid; a first electrode (20) in the contact with the second liquid; and a second electrode (202) insulated from the first and second liquids by an insulating layer, wherein the second electrode is formed of a conductive molded polymer material, wherein the curvature of said liquid-liquid interface is controllable by application of a voltage between said first and second electrodes.Type: GrantFiled: June 27, 2008Date of Patent: May 10, 2011Assignee: Varioptic, S.A.Inventors: Bruno Berge, Frederic Laune, Julien Legrand, Mathieu Maillard, Yves-Sebastien Boulin
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Patent number: 7791815Abstract: A dielectric coating is provided which has both a dielectric constant greater than 2.5 and a hydrophobic surface. The dielectric coating may be provided by plasma enhanced chemical vapor deposition (PECVD) of organosilane, organosiloxane, organosilazane, organometallic, and/or hydrocarbon precursors. Methods are also provided for altering the contact angle of a liquid in contact with the dielectric coating, e.g., for electrowetting applications.Type: GrantFiled: December 27, 2007Date of Patent: September 7, 2010Assignee: Varioptic S.A.Inventors: Christopher M. Weikart, Steven J. Martin, Mathieu Maillard, Julien Legrand
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Patent number: 7791814Abstract: The invention relates to an optical electrowetting device comprising a conductive fluid (5; 101) and a non-conductive fluid (4; 102), said fluids being non miscible, and an insulating substrate (2; 103) on which both fluids are in contact and form a triple interface, wherein the natural contact angle (105) of the non-conductive fluid (102) on the substrate (103) in presence of the conductive fluid (101) is comprised between 0° and about 20°. This device may be a variable focus liquid lens, an optical diaphragm, an optical zoom. The invention further relates to an apparatus such as a camera, a cell phone, an endoscope or a dental video camera, comprising said electrowetting device and a driver or electronic means for controlling the lens.Type: GrantFiled: January 31, 2007Date of Patent: September 7, 2010Assignee: VariopticInventors: Gaëtan Liogier D'ardhuy, Mathieu Maillard, Julien Legrand, Bruno Berge
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Publication number: 20100177386Abstract: The invention concerns an electrowetting optical device comprising a chamber (15) comprising first and second immiscible liquids (16, 18) contacting each other at a liquid-liquid interface (19), the first liquid being an insulating liquid and the second liquid being a conducting liquid; a first electrode (20) in the contact with the second liquid; and a second electrode (202) insulated from the first and second liquids by an insulating layer, wherein the second electrode is formed of a conductive molded polymer material, wherein the curvature of said liquid-liquid interface is controllable by application of a voltage between said first and second electrodes.Type: ApplicationFiled: June 27, 2008Publication date: July 15, 2010Applicant: VARIOPTIC, S.A.Inventors: Bruno Berge, Frederic Laune, Julien Legrand, Mathieu Maillard, Yves-Sebastien Boulin
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Patent number: 7729057Abstract: The present invention relates to the use of a bromine anion in the conductive fluid of an optical electrowetting device, especially a variable focus optical lens driven by electrowetting. The invention also pertains to a multi-phase liquid composition comprising a bromine anion, as well as an optical lens driven by electrowetting comprising the same.Type: GrantFiled: January 31, 2007Date of Patent: June 1, 2010Assignee: Varioptic S.A.Inventors: Mathieu Maillard, Geraldine Malet, Franck Amiot
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Patent number: 7499223Abstract: The invention relates to a variable-focus lens (60) for focusing light rays in light paths passing through the lens along an optical axis (?). The lens comprises an arrangement of first and second immiscible liquids (67, 68) that have different refractive indices and are in contact over a moveable refractive optical interface (69), a volume of gas (72) in contact with one of said liquids, and a retention measure (70, 74) for keeping the volume of gas away from the light paths of the light rays passing through the lens for focusing.Type: GrantFiled: June 22, 2006Date of Patent: March 3, 2009Assignee: Varioptic S.A.Inventors: Bruno Berge, Jérome Peseux, Mathieu Maillard, Pierre Craen
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Publication number: 20080225378Abstract: A dielectric coating is provided which has both a dielectric constant greater than 2.5 and a hydrophobic surface. The dielectric coating may be provided by plasma enhanced chemical vapor deposition (PECVD) of organosilane, organosiloxane, organosilazane, organometallic, and/or hydrocarbon precursors. Methods are also provided for altering the contact angle of a liquid in contact with the dielectric coating, e.g., for electrowetting applications.Type: ApplicationFiled: December 27, 2007Publication date: September 18, 2008Inventors: Christopher M. WEIKERT, Steven J. Martin, Mathieu Maillard, Julien Legrand
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Publication number: 20070177276Abstract: The invention relates to an optical electrowetting device comprising a conductive fluid (5; 101) and a non-conductive fluid (4; 102), said fluids being non miscible, and an insulating substrate (2; 103) on which both fluids are in contact and form a triple interface, wherein the natural contact angle (105) of the non-conductive fluid (102) on the substrate (103) in presence of the conductive fluid (101) is comprised between 0° and about 20°. This device may be a variable focus liquid lens, an optical diaphragm, an optical zoom. The invention further relates to an apparatus such as a camera, a cell phone, an endoscope or a dental video camera, comprising said electrowetting device and a driver or electronic means for controlling the lens.Type: ApplicationFiled: January 31, 2007Publication date: August 2, 2007Inventors: Gaetan Liogier D'ardhuy, Mathieu Maillard, Legrand Julien, Berge Bruno
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Publication number: 20070179201Abstract: The present invention relates to the use of a bromine anion in the conductive fluid of an optical electrowetting device, especially a variable focus optical lens driven by electrowetting. The invention also pertains to a multi-phase liquid composition comprising a bromine anion, as well as an optical lens driven by electrowetting comprising the same.Type: ApplicationFiled: January 31, 2007Publication date: August 2, 2007Inventors: Mathieu Maillard, Geraldine Malet, Franck Amiot