Patents by Inventor Jon E. Tegethoff

Jon E. Tegethoff 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).

  • Patent number: 4128340
    Abstract: The disclosure relates to an apparatus for measuring the light intensity gain performance of an image intensifier. The apparatus includes a light source which illuminates the input surface of the intensifier with input light of predetermined and constant intensity, a light sensitive detector arranged at the intensifier output for receiving at least a portion of the output light produced by the intensifier in response to the input light and for providing an electrical signal having an amplitude directly related to the intensity of the output light and an indicator coupled to the detector for providing an indication of the intensifier light intensity gain performance responsive to the electrical signal provided by the detector.
    Type: Grant
    Filed: July 23, 1976
    Date of Patent: December 5, 1978
    Assignee: Ni-Tec, Inc.
    Inventors: Ferdinand G. Fender, Jon E. Tegethoff