Patents by Inventor Carroll R. Fencil

Carroll R. Fencil 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).

  • Apparatus for analyzing coherent radiation
    Patent number: 4170416
    Abstract: Apparatus for detecting the presence and/or determining the intensity and/or determining the wavelength and/or determining the threshold direction of coherent radiation in the presence of incoherent ambient radiation.A preferred form of apparatus includes a Fabry-Perot etalon having three regions of different thickness such that the optical phase difference between the second region and third adjacent region is less than .pi.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: October 9, 1979
    Assignee: The Perkin-Elmer Corporation
    Inventor: Carroll R. Fencil