Patents by Inventor Michael G. Somekh

Michael G. Somekh 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: 5369489
    Abstract: Optical apparatus for measuring the topographic properties of a surface uses a beam of coherent radiation which is split by a beam splitter (2) into a reference beam and a probe beam. The probe beam at is modulated by a Bragg cell which is switched at two frequencies (.omega..sub.1,.omega..sub.2). A detector (6) recombines the components of the probe beam after reflection to produce a plurality of tone bursts the phase differences of which correspond to variations in the surface topography.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: November 29, 1994
    Assignee: British Technology Group Ltd.
    Inventor: Michael G. Somekh