Patents by Inventor Elaine Kathryn Stedman

Elaine Kathryn Stedman 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).

  • Image projection systems
    Patent number: 6999205
    Abstract: A method of determining the location of an optical feature in an image projection system, the method comprising: 1) projecting a first image of the feature onto a detector with a lens in a first position; 2) sensing, with the detector, the position of the first image of the feature; 3) projecting a second image of the feature onto a detector with a lens in a second position laterally spaced from the first position; 4) sensing, with the detector, the position of the second image of the feature; and 5) deducing the location of the defect from the difference between the positions sensed in steps 2) and 4).
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: February 14, 2006
    Assignee: Fujifilm Electronic Imaging Limited
    Inventors: Philip Andrew Westlake, Nigel Ingram Bromley, Elaine Kathryn Stedman