Patents by Inventor Douglas S. RUSSUM

Douglas S. RUSSUM 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).

  • Compact articulating telescope
    Patent number: 9389411
    Abstract: An unobscured afocal three-mirror telescope can provide a two-axis gimbal architecture that is more compact, more lightweight, and less expensive than traditional coudé path approaches. The telescope can create a real exit pupil and position the exit pupil on a 90-degree fold mirror. Two orthogonal rotational axes can intersect substantially at or about the center of the telescope's exit pupil and on or about the center of the last fold mirror.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: July 12, 2016
    Assignee: Lockheed Martin Corporation
    Inventors: Zachary Alvis Granger, Douglas S. Russum, David M. Stubbs
  • COMPACT ARTICULATING TELESCOPE
    Publication number: 20160187639
    Abstract: An unobscured afocal three-mirror telescope can provide a two-axis gimbal architecture that is more compact, more lightweight, and less expensive than traditional coudé path approaches. The telescope can create a real exit pupil and position the exit pupil on a 90-degree fold mirror. Two orthogonal rotational axes can intersect substantially at or about the center of the telescope's exit pupil and on or about the center of the last fold mirror.
    Type: Application
    Filed: December 29, 2014
    Publication date: June 30, 2016
    Inventors: Zachary Alvis GRANGER, Douglas S. RUSSUM, David M. STUBBS