Patents by Inventor Stuart M. Aston

Stuart M. Aston 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).

  • Interferometer
    Patent number: 8253943
    Abstract: An interferometer includes a source of a light beam and a beam splitter for splitting the light beam from the source into at least first and second beams. A first reflector is positioned in the path of the first light beam. A second reflector, including a convergent lens and a mirror, is positioned in the path of the second light beam following reflection from a target. Further included is at least one detector for detecting fringes formed by interference of the first and second light beams following reflection from the first and second reflectors, respectively. The mirror of the second reflector has a radius of curvature R within 10% of the value determined using a first formula, and the focal length f of the convergent lens is within 10% of the value determined using a second formula.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: August 28, 2012
    Assignee: The University of Birmingham
    Inventors: Clive C. Speake, Stuart M. Aston, Fabian Erasmo Pena Arellano, Timothy P. Copland