Patents by Inventor Lloyd Holland

Lloyd Holland 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).

  • Large scale metrology apparatus and method
    Patent number: 8582119
    Abstract: A metrology system that uses a plurality of photo-detecting targets positioned on the objects to be assembled, a plurality of rotating photo-emitting heads, a master signal generator that generates a reference RF signal, and a signal processor that determines the position of each of the targets from signals generated by each target in response to the photo-emitting heads. During operation, the reference RF signal is broadcast to the rotating photo-emitting heads and the photo-detecting targets. The RF signal is used to determine the azimuth of the heads relative to a zero reference position to a high degree of accuracy.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: November 12, 2013
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Daniel G. Smith, Lloyd Holland
  • LARGE SCALE METROLOGY APPARATUS AND METHOD
    Publication number: 20120050726
    Abstract: A metrology system that uses a plurality of photo-detecting targets positioned on the objects to be assembled, a plurality of rotating photo-emitting heads, a master signal generator that generates a reference RF signal, and a signal processor that determines the position of each of the targets from signals generated by each target in response to the photo-emitting heads. During operation, the reference RF signal is broadcast to the rotating photo-emitting heads and the photo-detecting targets. The RF signal is used to determine the azimuth of the heads relative to a zero reference position to a high degree of accuracy.
    Type: Application
    Filed: August 22, 2011
    Publication date: March 1, 2012
    Applicant: NIKON CORPORATION
    Inventors: W. Thomas Novak, Daniel G. Smith, Lloyd Holland
  • Projector with sealed light valve
    Publication number: 20050122482
    Abstract: A projector incorporating a prism and a plurality of light valves for modulating light that passes through the prism, wherein a dust-sealed airspace is provided between an imaging surface of each light valve and the prism for providing air channels to cool respective ones of the light valves.
    Type: Application
    Filed: August 14, 2003
    Publication date: June 9, 2005
    Applicant: CHRISTIE DIGITAL SYSTEMS INC.
    Inventors: Jim Ellis, Richard Matthews, Lloyd Holland, George Pinho