Patents by Inventor Annette C. Grot

Annette C. Grot 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).

  • Illumination system for creating a desired irradiance profile using diffractive optical elements
    Patent number: 6002520
    Abstract: An illumination system that comprises a light source, and, disposed in an optical path between the light source and the surface, converging imaging optics, and a diffractive array generator. The diffractive array generator preferably includes a two-dimensional periodic array of multi-level topological features.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: December 14, 1999
    Assignee: Hewlett-Packard Company
    Inventors: John S. Hoch, Annette C. Grot