Patents by Inventor Robert Martinsen
Robert Martinsen 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: 20210286200Abstract: A method of processing by controlling one or more beam characteristics of an optical beam may include: launching the optical beam into a first length of fiber having a first refractive-index profile (RIP); coupling the optical beam from the first length of fiber into a second length of fiber having a second RIP and one or more confinement regions; modifying the one or more beam characteristics of the optical beam in the first length of fiber, in the second length of fiber, or in the first and second lengths of fiber; confining the modified one or more beam characteristics of the optical beam within the one or more confinement regions of the second length of fiber; and/or generating an output beam, having the modified one or more beam characteristics of the optical beam, from the second length of fiber. The first RIP may differ from the second RIP.Type: ApplicationFiled: December 18, 2020Publication date: September 16, 2021Applicant: NLIGHT, INC.Inventors: Ken GROSS, Brian VICTOR, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
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Patent number: 10877220Abstract: A method of processing by controlling one or more beam characteristics of an optical beam may include: launching the optical beam into a first length of fiber having a first refractive-index profile (RIP); coupling the optical beam from the first length of fiber into a second length of fiber having a second RIP and one or more confinement regions; modifying the one or more beam characteristics of the optical beam in the first length of fiber, in the second length of fiber, or in the first and second lengths of fiber; confining the modified one or more beam characteristics of the optical beam within the one or more confinement regions of the second length of fiber; and/or generating an output beam, having the modified one or more beam characteristics of the optical beam, from the second length of fiber. The first RIP may differ from the second RIP.Type: GrantFiled: January 30, 2018Date of Patent: December 29, 2020Assignee: NLIGHT, INC.Inventors: Ken Gross, Brian Victor, Robert Martinsen, Dahv A. V. Kliner, Roger Farrow
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Publication number: 20200319408Abstract: A method of processing by controlling one or more beam characteristics of an optical beam may include: launching the optical beam into a first length of fiber having a first refractive-index profile (RIP); coupling the optical beam from the first length of fiber into a second length of fiber having a second RIP and one or more confinement regions; modifying the one or more beam characteristics of the optical beam in the first length of fiber, in the second length of fiber, or in the first and second lengths of fiber; confining the modified one or more beam characteristics of the optical beam within the one or more confinement regions of the second length of fiber; and/or generating an output beam, having the modified one or more beam characteristics of the optical beam, from the second length of fiber. The first RIP may differ from the second RIP.Type: ApplicationFiled: January 30, 2018Publication date: October 8, 2020Applicant: nLIGHT, Inc.Inventors: Ken GROSS, Brian VICTOR, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
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Patent number: 10690928Abstract: An apparatus for heat deposition in additive manufacturing may include: a first optical beam source configured to generate a first optical beam; a second optical beam source configured to generate a second optical beam; and/or an optical system. The optical system may be configured to move the generated first optical beam over a target area. The optical system may be further configured to move the generated second optical beam over the target area so that a path of the second optical beam moving over the target area is dithered about a path of the first optical beam moving over the target area. The optical system may be configured to focus the generated first optical beam at a plane of a target area. The optical system may be further configured to focus the generated second optical beam at the plane of the target area.Type: GrantFiled: February 26, 2018Date of Patent: June 23, 2020Assignee: NLIGHT, INC.Inventors: Scott Karlsen, Robert Martinsen, Dahv A. V. Kliner, Roger Farrow
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Patent number: 10668535Abstract: A method of making a three-dimensional object. The method comprises: a) positioning a layer of particles over a build plate; b) exposing the layer of particles to a first laser beam having a first set of beam characteristics, thereby heating the layer sufficiently to fuse at least a portion of the particles together to form a build layer; c) exposing a first region of one of i) the layer of particles or ii) the build layer to a second laser beam having a second set of beam characteristics to provide a first temperature profile for the first region; and d) exposing a second region of one of i) the layer of particles or ii) the build layer to a third laser beam having a third set of beam characteristics to provide a second temperature profile for the second region, the second temperature profile being different than the first temperature profile, wherein both the first region and the second region are in the layer of particles or both the first region and the second region are in the build layer.Type: GrantFiled: January 29, 2018Date of Patent: June 2, 2020Assignee: NLIGHT, INC.Inventors: Aaron Brown, Keith Kennedy, David Dawson, Robert Martinsen, Roger Farrow, Dahv A. V. Kliner
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Patent number: 10661391Abstract: A method of making a porous three-dimensional object.Type: GrantFiled: January 29, 2018Date of Patent: May 26, 2020Assignee: NLIGHT, INC.Inventors: Aaron Brown, Brian Victor, Robert Martinsen, Dahv A. V. Kliner, Roger Farrow
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Patent number: 10656330Abstract: A method for forming an article includes providing a material having a first material property; forming a melt pool by exposing the material to an optical beam having at least one beam characteristic, wherein the melt pool has at least one melt pool property determinative of a second material property of the material; and modifying the at least one beam characteristic in response to a change in the melt pool property.Type: GrantFiled: January 31, 2018Date of Patent: May 19, 2020Assignee: NLIGHT, INC.Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Dahv A. V. Kliner, Roger Farrow
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Patent number: 10646963Abstract: A method for forming an article includes: forming a melt pool; exposing the melt pool to an optical beam having at least one beam characteristic; forming a keyhole cavity in the melt pool, the keyhole cavity having at least one keyhole cavity property; and modifying the at least one beam characteristic in response to a change in the keyhole cavity property.Type: GrantFiled: January 31, 2018Date of Patent: May 12, 2020Assignee: NLIGHT, INC.Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Roger Farrow, Dahv A. V. Kliner
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Publication number: 20200116926Abstract: A method for forming an article includes providing a material having a first material property; forming a melt pool by exposing the material to an optical beam having at least one beam characteristic, wherein the melt pool has at least one melt pool property determinative of a second material property of the material; and modifying the at least one beam characteristic in response to a change in the melt pool property.Type: ApplicationFiled: January 31, 2018Publication date: April 16, 2020Applicant: nLIGHT, Inc.Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Dahv A.V. Kliner, Roger Farrow
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Publication number: 20180185965Abstract: A method for forming an article includes: forming a melt pool; exposing the melt pool to an optical beam having at least one beam characteristic; forming a keyhole cavity in the melt pool, the keyhole cavity having at least one keyhole cavity property; and modifying the at least one beam characteristic in response to a change in the keyhole cavity property.Type: ApplicationFiled: January 31, 2018Publication date: July 5, 2018Applicant: nLIGHT, Inc.Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Roger Farrow, Dahv A. V. Kliner
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Publication number: 20180180813Abstract: A method of processing by controlling one or more beam characteristics of an optical beam may include: launching the optical beam into a first length of fiber having a first refractive-index profile (RIP); coupling the optical beam from the first length of fiber into a second length of fiber having a second RIP and one or more confinement regions; modifying the one or more beam characteristics of the optical beam in the first length of fiber, in the second length of fiber, or in the first and second lengths of fiber; confining the modified one or more beam characteristics of the optical beam within the one or more confinement regions of the second length of fiber; and/or generating an output beam, having the modified one or more beam characteristics of the optical beam, from the second length of fiber. The first RIP may differ from the second RIP.Type: ApplicationFiled: January 30, 2018Publication date: June 28, 2018Applicant: nLIGHT, Inc.Inventors: Ken GROSS, Brian VICTOR, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
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Publication number: 20180180803Abstract: A method for forming an article includes providing a material having a first material property; forming a melt pool by exposing the material to an optical beam having at least one beam characteristic, wherein the melt pool has at least one melt pool property determinative of a second material property of the material; and modifying the at least one beam characteristic in response to a change in the melt pool property.Type: ApplicationFiled: January 31, 2018Publication date: June 28, 2018Applicant: nLIGHT, Inc.Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Dahv A.V. Kliner, Roger Farrow
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Publication number: 20180180896Abstract: An apparatus for heat deposition in additive manufacturing may include: a first optical beam source configured to generate a first optical beam; a second optical beam source configured to generate a second optical beam; and/or an optical system. The optical system may be configured to move the generated first optical beam over a target area. The optical system may be further configured to move the generated second optical beam over the target area so that a path of the second optical beam moving over the target area is dithered about a path of the first optical beam moving over the target area. The optical system may be configured to focus the generated first optical beam at a plane of a target area. The optical system may be further configured to focus the generated second optical beam at the plane of the target area.Type: ApplicationFiled: February 26, 2018Publication date: June 28, 2018Applicant: nLIGHT, Inc.Inventors: Scott KARLSEN, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
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Publication number: 20180161873Abstract: A method of making a three-dimensional object. The method comprises: a) positioning a layer of particles over a build plate; b) exposing the layer of particles to a first laser beam having a first set of beam characteristics, thereby heating the layer sufficiently to fuse at least a portion of the particles together to form a build layer; c) exposing a first region of one of i) the layer of particles or ii) the build layer to a second laser beam having a second set of beam characteristics to provide a first temperature profile for the first region; and d) exposing a second region of one of i) the layer of particles or ii) the build layer to a third laser beam having a third set of beam characteristics to provide a second temperature profile for the second region, the second temperature profile being different than the first temperature profile, wherein both the first region and the second region are in the layer of particles or both the first region and the second region are in the build layer.Type: ApplicationFiled: January 29, 2018Publication date: June 14, 2018Applicant: nLIGHT, Inc.Inventors: Aaron Brown, Keith Kennedy, David Dawson, Robert Martinsen, Roger Farrow, Dahv A. V. Kliner
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Publication number: 20180161935Abstract: A method of making a porous three-dimensional object.Type: ApplicationFiled: January 29, 2018Publication date: June 14, 2018Applicant: nLIGHT, Inc.Inventors: Aaron Brown, Brian Victor, Robert Martinsen, Dahv A.V. Kliner, Roger Farrow
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Patent number: 8176675Abstract: A device for bringing a fishing hook attached to a line out to the side of a boat during trolling, comprising an elongated hull (5), a keel (6) and a line (7) with a release device (8), where the release device is arranged to hold the line during trolling and release the line when a fish bites on the hook.Type: GrantFiled: April 19, 2002Date of Patent: May 15, 2012Inventors: Robert Martinsen, Svein-Inge Stangenes
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Publication number: 20070268946Abstract: An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individual diode laser subassembly output beams do not interfere with one another.Type: ApplicationFiled: July 31, 2007Publication date: November 22, 2007Applicant: nLight Photonics CorporationInventors: Derek Schulte, Yu Yan, Robert Martinsen, Aaron Hodges, Scott Karlsen
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Publication number: 20070268947Abstract: An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individual diode laser subassembly output beams do not interfere with one another.Type: ApplicationFiled: July 31, 2007Publication date: November 22, 2007Applicant: nLight Photonics CorporationInventors: Derek Schulte, Yu Yan, Robert Martinsen, Aaron Hodges, Scott Karlsen
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Publication number: 20070268945Abstract: An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individual diode laser subassembly output beams do not interfere with one another.Type: ApplicationFiled: July 31, 2007Publication date: November 22, 2007Applicant: nLight Photonics CorporationInventors: Derek Schulte, Yu Yan, Robert Martinsen, Aaron Hodges, Scott Karlsen
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Publication number: 20070116070Abstract: An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individual diode laser subassembly output beams do not interfere with one another.Type: ApplicationFiled: December 20, 2005Publication date: May 24, 2007Applicant: nLight Photonics CorporationInventors: Derek Schulte, Yu Yan, Robert Martinsen, Aaron Hodges, Scott Karlsen