Patents by Inventor Mike Goldsworthy

Mike Goldsworthy 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: 7211782
    Abstract: All-optical output precision measuring gauges that sense the displacement of an internal scale grating are disclosed. Each type of gauge includes a compact, miniature, or ultra-miniature optical readhead that includes a light source for transmitting light to the scale grating, and optical-fiber detector channels for receiving light from the scale grating and outputting optical measuring signals from the gauge. In various embodiments, the optical-fiber detector channels have respective phase grating masks for receiving a periodic light pattern that moves in correspondence to the scale grating, and the channels are arranged in balanced pairs. In various embodiments, the optical readhead is an interferometric-type optical readhead that provides a measuring resolution as fine as 10–50 nanometers or less. In various embodiments, the gauge is provided in an unprecedented miniature size. In various embodiments, the gauge is motorized to provide a precision actuator.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 1, 2007
    Assignee: Mitutoyo Corporation
    Inventors: Joseph D. Tobiason, Avron Zwilling, Casey Emtman, Scott Harsila, Mike Goldsworthy, Kim W. Atherton
  • Publication number: 20050224705
    Abstract: All-optical output precision measuring gauges that sense the displacement of an internal scale grating are disclosed. Each type of gauge includes a compact, miniature, or ultra-miniature optical readhead that includes a light source for transmitting light to the scale grating, and optical-fiber detector channels for receiving light from the scale grating and outputting optical measuring signals from the gauge. In various embodiments, the optical-fiber detector channels have respective phase grating masks for receiving a periodic light pattern that moves in correspondence to the scale grating, and the channels are arranged in balanced pairs. In various embodiments, the optical readhead is an interferometric-type optical readhead that provides a measuring resolution as fine as 10-50 nanometers or less. In various embodiments, the gauge is provided in an unprecedented miniature size. In various embodiments, the gauge is motorized to provide a precision actuator.
    Type: Application
    Filed: July 29, 2004
    Publication date: October 13, 2005
    Inventors: Joseph Tobiason, Avron Zwilling, Casey Emtman, Scott Harsila, Mike Goldsworthy, Kim Atherton