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).

  • Publication number: 20210286200
    Abstract: 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: Application
    Filed: December 18, 2020
    Publication date: September 16, 2021
    Applicant: NLIGHT, INC.
    Inventors: Ken GROSS, Brian VICTOR, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
  • Patent number: 10877220
    Abstract: 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: Grant
    Filed: January 30, 2018
    Date of Patent: December 29, 2020
    Assignee: NLIGHT, INC.
    Inventors: Ken Gross, Brian Victor, Robert Martinsen, Dahv A. V. Kliner, Roger Farrow
  • Publication number: 20200319408
    Abstract: 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: Application
    Filed: January 30, 2018
    Publication date: October 8, 2020
    Applicant: nLIGHT, Inc.
    Inventors: Ken GROSS, Brian VICTOR, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
  • Patent number: 10690928
    Abstract: 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: Grant
    Filed: February 26, 2018
    Date of Patent: June 23, 2020
    Assignee: NLIGHT, INC.
    Inventors: Scott Karlsen, Robert Martinsen, Dahv A. V. Kliner, Roger Farrow
  • Patent number: 10668535
    Abstract: 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: Grant
    Filed: January 29, 2018
    Date of Patent: June 2, 2020
    Assignee: NLIGHT, INC.
    Inventors: Aaron Brown, Keith Kennedy, David Dawson, Robert Martinsen, Roger Farrow, Dahv A. V. Kliner
  • Patent number: 10661391
    Abstract: A method of making a porous three-dimensional object.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: May 26, 2020
    Assignee: NLIGHT, INC.
    Inventors: Aaron Brown, Brian Victor, Robert Martinsen, Dahv A. V. Kliner, Roger Farrow
  • Patent number: 10656330
    Abstract: 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: Grant
    Filed: January 31, 2018
    Date of Patent: May 19, 2020
    Assignee: NLIGHT, INC.
    Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Dahv A. V. Kliner, Roger Farrow
  • Patent number: 10646963
    Abstract: 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: Grant
    Filed: January 31, 2018
    Date of Patent: May 12, 2020
    Assignee: NLIGHT, INC.
    Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Roger Farrow, Dahv A. V. Kliner
  • Publication number: 20200116926
    Abstract: 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: Application
    Filed: January 31, 2018
    Publication date: April 16, 2020
    Applicant: nLIGHT, Inc.
    Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Dahv A.V. Kliner, Roger Farrow
  • Publication number: 20180185965
    Abstract: 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: Application
    Filed: January 31, 2018
    Publication date: July 5, 2018
    Applicant: nLIGHT, Inc.
    Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Roger Farrow, Dahv A. V. Kliner
  • Publication number: 20180180896
    Abstract: 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: Application
    Filed: February 26, 2018
    Publication date: June 28, 2018
    Applicant: nLIGHT, Inc.
    Inventors: Scott KARLSEN, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
  • Publication number: 20180180803
    Abstract: 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: Application
    Filed: January 31, 2018
    Publication date: June 28, 2018
    Applicant: nLIGHT, Inc.
    Inventors: Brian Victor, Robert Martinsen, Lynn Sheehan, Dahv A.V. Kliner, Roger Farrow
  • Publication number: 20180180813
    Abstract: 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: Application
    Filed: January 30, 2018
    Publication date: June 28, 2018
    Applicant: nLIGHT, Inc.
    Inventors: Ken GROSS, Brian VICTOR, Robert MARTINSEN, Dahv A.V. KLINER, Roger FARROW
  • Publication number: 20180161873
    Abstract: 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: Application
    Filed: January 29, 2018
    Publication date: June 14, 2018
    Applicant: nLIGHT, Inc.
    Inventors: Aaron Brown, Keith Kennedy, David Dawson, Robert Martinsen, Roger Farrow, Dahv A. V. Kliner
  • Publication number: 20180161935
    Abstract: A method of making a porous three-dimensional object.
    Type: Application
    Filed: January 29, 2018
    Publication date: June 14, 2018
    Applicant: nLIGHT, Inc.
    Inventors: Aaron Brown, Brian Victor, Robert Martinsen, Dahv A.V. Kliner, Roger Farrow
  • Patent number: 8176675
    Abstract: 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: Grant
    Filed: April 19, 2002
    Date of Patent: May 15, 2012
    Inventors: Robert Martinsen, Svein-Inge Stangenes
  • Publication number: 20070268947
    Abstract: 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: Application
    Filed: July 31, 2007
    Publication date: November 22, 2007
    Applicant: nLight Photonics Corporation
    Inventors: Derek Schulte, Yu Yan, Robert Martinsen, Aaron Hodges, Scott Karlsen
  • Publication number: 20070268945
    Abstract: 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: Application
    Filed: July 31, 2007
    Publication date: November 22, 2007
    Applicant: nLight Photonics Corporation
    Inventors: Derek Schulte, Yu Yan, Robert Martinsen, Aaron Hodges, Scott Karlsen
  • Publication number: 20070268946
    Abstract: 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: Application
    Filed: July 31, 2007
    Publication date: November 22, 2007
    Applicant: nLight Photonics Corporation
    Inventors: Derek Schulte, Yu Yan, Robert Martinsen, Aaron Hodges, Scott Karlsen
  • Publication number: 20070116071
    Abstract: 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: Application
    Filed: March 17, 2006
    Publication date: May 24, 2007
    Applicant: nLight Photonics Corporation
    Inventors: Derek Schulte, Yu Yan, Robert Martinsen, Aaron Hodges, Scott Karlsen