Patents by Inventor Pedro N. Figueiredo

Pedro N. Figueiredo 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).

  • Variable Infrared Attenuator With High Precision At High Attenuation
    Publication number: 20220197065
    Abstract: An infrared attenuator includes a prism having a first conductive element at a surface thereof and a second conductive element at an adjustable distance from the first conductive element. Adjusting the distance controls a degree of infrared absorption by the first conductive element and second conductive element when infrared radiation is incident on the prism to provide variable attenuation.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 23, 2022
    Inventors: Pedro N. Figueiredo, Robert E. Peale
  • Scene Generation Using Surface Plasmon Polaritons
    Publication number: 20200348169
    Abstract: A scene generator can generate a second scene representative of a first scene by emitting a beam of electromagnetic radiation onto a plurality of prism-coupled electrically conductive elements that modulate a portion of the beam incident thereon with surface plasmon polaritons based on parameters of the first scene to yield a modulated beam that produces the second scene.
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Inventor: Pedro N. Figueiredo
  • Scene generation using surface plasmon polaritons
    Patent number: 10788360
    Abstract: An infrared scene generator can generate a second infrared scene representative of a first infrared scene by emitting a beam of electromagnetic radiation onto a plurality of prism-coupled electrically conductive elements that modulate a portion of the beam incident thereon with surface plasmon polaritons based on parameters of the first infrared scene to yield a modulated beam that produces the second infrared scene.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: September 29, 2020
    Assignee: Truventic, LLC
    Inventor: Pedro N. Figueiredo
  • Scene Generation Using Surface Plasmon Polaritons
    Publication number: 20190234795
    Abstract: An infrared scene generator can generate a second infrared scene representative of a first infrared scene by emitting a beam of electromagnetic radiation onto a plurality of prism-coupled electrically conductive elements that modulate a portion of the beam incident thereon with surface plasmon polaritons based on parameters of the first infrared scene to yield a modulated beam that produces the second infrared scene.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventor: Pedro N. Figueiredo