Patents by Inventor Christopher Jelen

Christopher Jelen 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).

  • Unobscured two-mirror catadioptric optical system for a multispectral imaging apparatus
    Patent number: 10948702
    Abstract: An optical system in which an aggressively compact reflective front end is combined with beam splitting elements and refractive relay optics to allow several imaging systems working in widely different wavelength bands to share a common aperture. The aggressively compact design results in significant field curvature at the uncorrected intermediate or virtual focus, which is corrected in the refractive relay optics for each band's imaging path.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: March 16, 2021
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Alan Greenland, Robin Pruss, Christopher Jelen, Matthew Larsen, Shu-i Wang
  • UNOBSCURED TWO-MIRROR CATADIOPTRIC OPTICAL SYSTEM FOR A MULTISPECTRAL IMAGING APPARATUS
    Publication number: 20210003833
    Abstract: An optical system in which an aggressively compact reflective front end is combined with beam splitting elements and refractive relay optics to allow several imaging systems working in widely different wavelength bands to share a common aperture. The aggressively compact design results in significant field curvature at the uncorrected intermediate or virtual focus, which is corrected in the refractive relay optics for each band's imaging path.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 7, 2021
    Inventors: Alan Greenland, Robin Pruss, Christopher Jelen, Matthew Larsen, Shu-i Wang