Patents by Inventor William E. Schaffer

William E. Schaffer 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).

  • Method for correction of distortions of an imaging device
    Patent number: 4993823
    Abstract: A method for providing corrections of distortions of an imaging device. Initial corrections may be provided through the use of active optics, to apply forces to the imaging device, or to a compensator device in a common optical path with the imaging device, so as to introduce deformations that cancel out the distortions. This action, in turn, may induce undesirable, secondary aberrations. The method of the invention provides steps for identifying, isolating and removing the undesirable secondary aberrations, and computing new applied forces that cannot induce the secondary aberrations.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: February 19, 1991
    Assignee: Eastman Kodak Company
    Inventors: William E. Schaffer, Jr., Donald A. Jacques, Donald E. Vandenberg
  • Method for correction of distortions of a mirror
    Patent number: 4875765
    Abstract: A method for providing corrections of distortions of a mirror. Initial corrections may be provided through the use of active optics, to apply forces to the mirror to introduce deformations that cancel out the distortions. This action, in turn, may induce undesirable aberrations. The method of the invention provides steps for identifying, isolating and removing the induced undesirable aberrations, and computing new applied forces that cannot induce the undesirable aberrations.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: October 24, 1989
    Assignee: Eastman Kodak Company
    Inventors: Donald E. Vandenberg, Donald A. Jacques, William E. Schaffer