Patents by Inventor William Harry Vonderhaar

William Harry Vonderhaar 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).

  • Optical system for producing uniform line illumination
    Patent number: 5768017
    Abstract: A system for creating a bright and uniform line of illumination. The "hot spot" of an arc lamp is imaged onto a narrow, circular pinhole aperture. Light passing through the pinhole aperture is collimated and passed through a second aperture (the apodizing aperture), before being focused to a line of illumination by a cylindrical lens. The spatial profile of the apodizing aperture is tailored to remove non-uniformities in the illumination source thereby allowing a highly uniform line of illumination to be created. Alternatively, the spatial profile of the apodizing aperture can be tailored to produce a line of illumination having a desired non-uniform intensity profile.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: June 16, 1998
    Assignee: International Business Machines Corporation
    Inventors: Mark Reid King, Scott Marshall Mansfield, William Harry Vonderhaar