Patents by Inventor William Thomas Beauchamp

William Thomas Beauchamp 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).

  • Methods for preparing low scatter optical coatings
    Patent number: 5670030
    Abstract: The present invention is directed to a sputtering method for preparing optical coatings having low light scattering characteristics by controlling the angle of incidence of the material being sputtered without significantly reducing the coating efficiency of the sputtering process. The angle of incidence is controlled by reducing the collision scattering of the material being sputtered and by intercepting the sputtered material that would without interception arrive at the surface to be coated at high angles of incidence. The collision scattering is reduced by utilizing a sputtering gas that has a mass less than the mass of the material being sputtered.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: September 23, 1997
    Assignee: Optical Coating Laboratory, Inc.
    Inventors: Scott Eugene Solberg, Richard Ian Seddon, Bradley James Pond, William Thomas Beauchamp