Patents by Inventor Dominique Ragot

Dominique Ragot 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).

  • Optical architecture for infrared viewing system
    Patent number: 6181486
    Abstract: An optical architecture for an infrared vision system for binoculars or a camera. This system includes a front afocal, a scanner, an optical device forming an image of the scene and a cooled detector with cold stop. This architecture has an aperture stop which is seperate from the cold stop thereby causing varaitons in the structure flux over the extent of the detector. These varations are corrected by a suitable shape of the cold stop which smooths out the photometric inefficiency over the extent of the detector and decreases the photometric inefficiency.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: January 30, 2001
    Assignee: Thomson-CSF
    Inventors: Bertrand Forestier, Jo{umlaut over (e)}l Rollin, Dominique Ragot