Patents by Inventor John Riddle Sandercock

John Riddle Sandercock 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).

  • High resolution, high contrast Fabry-Perot spectrometer
    Patent number: 4014614
    Abstract: A Fabry-Perot interferometer includes a plane mirror and a confocal interferometer tandemly aligned so that the output of the former is applied as an input to the latter. Signals are derived for synchronizing the two interferometers by stopping the scan of the plane mirror unit during a portion of each scan cycle and incrementally advancing the scan position of the scan mirror of the confocal unit so that the confocal unit scans the plane mirror unit in a plurality of successive scans.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: March 29, 1977
    Assignee: RCA Corporation
    Inventor: John Riddle Sandercock