Patents by Inventor James P. Armstrong

James P. Armstrong 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: 20220249669
    Abstract: Described herein are processes and compositions for ultrasound-triggered liposome payload release, including a process for gelation and a process for enzyme catalysis.
    Type: Application
    Filed: July 31, 2021
    Publication date: August 11, 2022
    Inventors: Valeria NELE, James P. ARMSTRONG, Molly M. STEVENS, Carolyn SCHUTT IBSEN, Michael D. GRAY, Constantin C. COUSSIOS
  • Patent number: 9373928
    Abstract: Spatial mode conversion modules are described, with the capability of efficiently transforming a given optical beam profile, at one plane in space into another well-defined optical beam profile at a different plane in space, whose detailed spatial features and symmetry properties can, in general, differ significantly. The modules are comprised of passive, high-efficiency, low-loss diffractive optical elements, combined with Fourier transform optics. Design rules are described that employ phase retrieval techniques and associated algorithms to determine the necessary profiles of the diffractive optical components. System augmentations are described that utilize real-time adaptive optical techniques for enhanced performance as well as power scaling.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: June 21, 2016
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Arun K. Sridharan, Paul H. Pax, John E. Heebner, Derrek R. Drachenberg, James P. Armstrong, Jay W. Dawson
  • Publication number: 20150340835
    Abstract: Spatial mode conversion modules are described, with the capability of efficiently transforming a given optical beam profile, at one plane in space into another well-defined optical beam profile at a different plane in space, whose detailed spatial features and symmetry properties can, in general, differ significantly. The modules are comprised of passive, high-efficiency, low-loss diffractive optical elements, combined with Fourier transform optics. Design rules are described that employ phase retrieval techniques and associated algorithms to determine the necessary profiles of the diffractive optical components. System augmentations are described that utilize real-time adaptive optical techniques for enhanced performance as well as power scaling.
    Type: Application
    Filed: July 10, 2015
    Publication date: November 26, 2015
    Inventors: Arun K. Sridharan, Paul H. Pax, John E. Heebner, Derrek R. Drachenberg, James P. Armstrong, Jay W. Dawson
  • Patent number: 9124066
    Abstract: Spatial mode conversion modules are described, with the capability of efficiently transforming a given optical beam profile, at one plane in space into another well-defined optical beam profile at a different plane in space, whose detailed spatial features and symmetry properties can, in general, differ significantly. The modules are comprised of passive, high-efficiency, low-loss diffractive optical elements, combined with Fourier transform optics. Design rules are described that employ phase retrieval techniques and associated algorithms to determine the necessary profiles of the diffractive optical components. System augmentations are described that utilize real-time adaptive optical techniques for enhanced performance as well as power scaling.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 1, 2015
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Arun K. Sridharan, Paul H. Pax, John E. Heebner, Derrek R. Drachenberg, James P. Armstrong, Jay W. Dawson
  • Publication number: 20130294468
    Abstract: Spatial mode conversion modules are described, with the capability of efficiently transforming a given optical beam profile, at one plane in space into another well-defined optical beam profile at a different plane in space, whose detailed spatial features and symmetry properties can, in general, differ significantly. The modules are comprised of passive, high-efficiency, low-loss diffractive optical elements, combined with Fourier transform optics. Design rules are described that employ phase retrieval techniques and associated algorithms to determine the necessary profiles of the diffractive optical components. System augmentations are described that utilize real-time adaptive optical techniques for enhanced performance as well as power scaling.
    Type: Application
    Filed: March 8, 2013
    Publication date: November 7, 2013
    Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventors: Arun K. Sridharan, Paul H. Pax, John E. Heebner, Derrek R. Drachenberg, James P. Armstrong, Jay W. Dawson
  • Patent number: 8339580
    Abstract: A countermeasure system for use by a target to protect against an incoming sensor-guided threat. The system includes a laser system for producing a broadband beam and means for directing the broadband beam from the target to the threat. The countermeasure system comprises the steps of producing a broadband beam and directing the broad band beam from the target to blind or confuse the incoming sensor-guided threat.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: December 25, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Brent C. Stuart, Lloyd A. Hackel, Mark R. Hermann, James P. Armstrong
  • Patent number: 8284809
    Abstract: A pulse of laser light is switched out of a pulse train and spatially dispersed into its constituent wavelengths. The pulse is collimated to a suitable size and then diffracted by high groove density multilayer dielectric gratings. This imparts a different angle to each individual wavelength so that, when brought to the far field with a lens, the colors have spread out in a linear arrangement. The distance between wavelengths (resolution) can be tailored for the specific laser and application by altering the number of times the beam strikes the diffraction gratings, the groove density of the gratings and the focal length of the lens. End portions of the linear arrangement are each directed to a respective detector, which converts the signal to a 1 if the level meets a set-point, and a 0 if the level does not. If both detectors produces a 1, then the pulse train is allowed to propagate into an optical system.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: October 9, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: James P. Armstrong, Steven James Telford, Rodney Kay Lanning, Andrew James Bayramian
  • Publication number: 20110170567
    Abstract: A pulse of laser light is switched out of a pulse train and spatially dispersed into its constituent wavelengths. The pulse is collimated to a suitable size and then diffracted by high groove density multilayer dielectric gratings. This imparts a different angle to each individual wavelength so that, when brought to the far field with a lens, the colors have spread out in a linear arrangement. The distance between wavelengths (resolution) can be tailored for the specific laser and application by altering the number of times the beam strikes the diffraction gratings, the groove density of the gratings and the focal length of the lens. End portions of the linear arrangement are each directed to a respective detector, which converts the signal to a 1 if the level meets a set-point, and a 0 if the level does not. If both detectors produces a 1, then the pulse train is allowed to propagate into an optical system.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 14, 2011
    Inventors: James P. Armstrong, Steven James Telford, Rodney Kay Lanning, Andrew James Bayramian