Patents by Inventor Paul Fournier
Paul Fournier 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: 9599507Abstract: A fiber optic probe assembly is provided. The probe comprises a first optical system and a second optical system, a delivery light guide comprising one or more than one delivery optical fiber for transmitting excitation radiation from a radiation source disposed at a proximal end of the light guide to the first optical system. The first optical system comprising one or more than one first optical element for forming a substantially collimated illumination beam from the excitation radiation. An optically opaque tubular sleeve is fitted over the first optical system to optically isolate the first optical system and the delivery light guide from the second optical system. The second optical system comprising one or more than one second optical element for gathering optical radiation scattered from a sample and forming the optical radiation into a collection beam.Type: GrantFiled: February 5, 2014Date of Patent: March 21, 2017Inventors: Rafal Pawluczyk, Paul Fournier
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Publication number: 20150377701Abstract: A fiber optic probe assembly is provided. The probe comprises a first optical system and a second optical system, a delivery light guide comprising one or more than one delivery optical fiber for transmitting excitation radiation from a radiation source disposed at a proximal end of the light guide to the first optical system. The first optical system comprising one or more than one first optical element for forming a substantially collimated illumination beam from the excitation radiation. An optically opaque tubular sleeve is fitted over the first optical system to optically isolate the first optical system and the delivery light guide from the second optical system. The second optical system comprising one or more than one second optical element for gathering optical radiation scattered from a sample and forming the optical radiation into a collection beam.Type: ApplicationFiled: February 5, 2014Publication date: December 31, 2015Inventors: Rafal PAWLUCZYK, Paul FOURNIER
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Patent number: 8882274Abstract: The device and method of the present invention are useful for determining the characteristics of an infrared wavefront. The present invention involves positioning a beam of light containing the infrared wavefront to be characterized onto a distorted grating, using the grating to produce a plurality of images, determining the infrared wavefront from the plurality of images and analyzing the infrared wavefront for features that characterize the infrared wavefront.Type: GrantFiled: August 5, 2009Date of Patent: November 11, 2014Inventors: Leonard John Otten, III, Paul Harrison, Desirae L. Cuevas, Paul Fournier
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Publication number: 20130225951Abstract: A method and system of acquisition and processing of data representing oxygen saturation (OS) value of a tissue of a visual system of a subject, such as the optic nerve head and overlying artery and vein. The data is acquired at pre-determined discrete spectral points, including at least two isosbestic points, as a discrete reflectance spectrum, with the use of a multi-spectral optical imaging system that simultaneously produces a plurality of two-dimensional spectrally-discrete images by segmenting an incoming light front with secondary objectives. The OS value is assessed based on determination of areas bound by an acquired discrete reflectance spectrum and an isosbestic line.Type: ApplicationFiled: April 26, 2011Publication date: August 29, 2013Applicant: EYE02 SCAN LLCInventors: Bahram Khoobehi, Hussein Wafapoor, Alexander M. Eaton, Paul Fournier
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Patent number: 8072049Abstract: A polysilicon resistor fuse has an elongated bow-tie body that is wider at the opposite ends relative to a narrow central portion. The opposite ends of the body of the fuse have high concentrations of N-type dopants to make them low resistance contacts. The upper portion of the central body has a graded concentration of N-type dopants that decreases in a direction from the top surface toward the middle of the body between the opposite surfaces. The lower central portion of the body is lightly doped with P-type dopants. The central N-type region is a resistive region.Type: GrantFiled: April 24, 2009Date of Patent: December 6, 2011Assignee: Fairchild Semiconductor CorporationInventors: Nickole Gagne, Paul Fournier, Daniel Gagne
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Publication number: 20100270662Abstract: A polysilicon resistor fuse has an elongated bow-tie body that is wider at the opposite ends relative to a narrow central portion. The opposite ends of the body of the fuse have high concentrations of N-type dopants to make them low resistance contacts. The upper portion of the central body has a graded concentration of N-type dopants that decreases in a direction from the top surface toward the middle of the body between the opposite surfaces. The lower central portion of the body is lightly doped with P-type dopants. The central N-type region is a resistive region.Type: ApplicationFiled: April 24, 2009Publication date: October 28, 2010Inventors: Nickole Gagne, Paul Fournier, Daniel Gagne
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Patent number: 7638768Abstract: The device and method of the present invention are useful for determining the characteristics of an infrared wavefront. The present invention involves positioning a beam of light containing the infrared wavefront to be characterized onto a distorted grating, using the grating to produce a plurality of images, determining the infrared wavefront from the plurality of images and analyzing the infrared wavefront for features that characterize the infrared wavefront.Type: GrantFiled: June 19, 2007Date of Patent: December 29, 2009Assignee: Kestrel CorporationInventors: Leonard John Otten, III, Paul Harrison, Desirae L. Cuevas, Paul Fournier
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Patent number: 7232999Abstract: The device and method of the present invention are useful for determining the characteristics of an infrared wavefront. The present invention involves positioning a beam of light containing the infrared wavefront to be characterized onto a distorted grating, using the grating to produce a plurality of images, determining the infrared wavefront from the plurality of images and analyzing the infrared wavefront for features that characterize the infrared wavefront.Type: GrantFiled: July 30, 2004Date of Patent: June 19, 2007Assignee: Kestrel CorporationInventors: Leonard John Otten, III, Paul Harrison, Desirae L. Cuevas, Paul Fournier
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Publication number: 20070022706Abstract: A service line distribution base (10) comprises a ground anchor (18) having an upstanding cruciform portion adapted to extend into the ground. A cabinet (20) suited to support a utility pole (14) extends upwardly from the ground anchor (18). The cabinet (20) defines and internal space for receiving buried wire conduits (28) incorporated to the cruciform ground anchor (18). The cruciform shape of the ground anchor (18) advantageously permits to incorporate a greater number of wire conduits (28) into the base of a utility pole as compared to conventional concrete bases.Type: ApplicationFiled: May 11, 2006Publication date: February 1, 2007Inventor: Paul Fournier
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Patent number: 6780274Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.Type: GrantFiled: November 13, 2001Date of Patent: August 24, 2004Assignee: Lightpath Technologies, Inc.Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
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Patent number: 6758935Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano—plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.Type: GrantFiled: November 13, 2001Date of Patent: July 6, 2004Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
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Publication number: 20020054735Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.Type: ApplicationFiled: November 13, 2001Publication date: May 9, 2002Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
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Publication number: 20020041742Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.Type: ApplicationFiled: November 13, 2001Publication date: April 11, 2002Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
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Patent number: 6360039Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.Type: GrantFiled: November 29, 1999Date of Patent: March 19, 2002Assignee: LightPath Technologies, Inc.Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
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Patent number: 6352376Abstract: A method is provided for fusion-splicing with a laser beam two optical components, one of the optical components (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical component (e.g., an optical fiber).Type: GrantFiled: November 29, 1999Date of Patent: March 5, 2002Assignee: LightPatch Technologies, Inc.Inventors: William P. Walters, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, Pierre Bernard
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Publication number: 20010014198Abstract: A method is provided for fusion-splicing with a laser beam two optical components, one of the optical components (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical component (e.g., an optical fiber).Type: ApplicationFiled: November 29, 1999Publication date: August 16, 2001Applicant: LIGHTPATH TECHNOLOGIES, INC.Inventors: WILLIAM P. WALTERS, MARK A. FITCH, PAUL FOURNIER, MARC FARRELL HARRIS, PIERRE BERNARD
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Patent number: 6217698Abstract: A method is provided for fusion-splicing with a laser beam at least two optical components to a different optical component, the different optical component (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical components (e.g., at least two optical fibers).Type: GrantFiled: November 29, 1999Date of Patent: April 17, 2001Assignee: LightPath Technologies, Inc.Inventors: William P. Walters, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, Pierre Bernard
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Patent number: 6033515Abstract: A method is provided for fusion-splicing with a laser beam two optical components, one of the optical components (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical component (e.g., an optical fiber).Type: GrantFiled: July 17, 1998Date of Patent: March 7, 2000Assignee: LightPath Technologies, Inc.Inventors: William P. Walters, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, Pierre Bernard
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Patent number: 5708498Abstract: An optical method and apparatus is provided for determining the color and profile of a target surface of an object. The target surface is scanned with an incident beam of light containing a plurality of wavelengths including at least one well defined wavelength. A return beam reflected from the target is split into at a first and second return beam. The first return beam is utilized for detecting the profile of the target surface; and, a plurality of detectors are provided that detect color information corresponding to the target surface from the second return beam.Type: GrantFiled: March 4, 1996Date of Patent: January 13, 1998Assignee: National Research Council of CanadaInventors: Marc Rioux, Lawrence King, Paul Fournier
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Patent number: 4983726Abstract: The invention relates to nitrosourea derivatives, a process for their preparation and pharmaceutical compositions containing them.The nitrosourea derivatives of the invention correspond to the following formula (I): ##STR1## in which: R can represent a hydrogen atom or an alkyl group from 1 to 30 carbon atoms, X represents a hydroxy group or an -NR.sub.1 R.sub.2 group, Y represents a hydrogen atom, a hydroxy group or an -NR'.sub.1 R'.sub.2 group, where R.sub.1 and/or R'.sub.1 each represent a hydrogen atom or a ##STR2## group, Hal being a halogen, and R.sub.2 and/or R'.sub.2 can each represent a hydrogen atom or an alkyl group comprising from 1 to 6 carbon atoms, R' and R" can represent hydrogen or OH, provided that at least X represents ##STR3## with R.sub.1 representing ##STR4## or Y represents ##STR5## with R'.sub.1 representing ##STR6## and provided that either R' represents hydrogen or R" represents hydrogen, and R' and R" cannot be simultaneously hydrogen atoms.Type: GrantFiled: November 24, 1989Date of Patent: January 8, 1991Assignee: Sanofi S.A.Inventors: Pierre Roger, Patrick Choay, Claude Monneret, Jean-Paul Fournier