Patents by Inventor Hubert U. Brueckner

Hubert U. Brueckner 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).

  • Polymeric optical element having antireflecting surface
    Patent number: 4153654
    Abstract: An optical element of polymeric material is provided with a microstructured surface, thereby rendering the surface substantially non-reflecting while maintaining a high degree of transmissivity. The element is formed via replication from a stamper prepared from a glass original having a similar microstructured surface which is formed by etching a cleaned surface of the glass in vapors of hydrofluoric acid followed by sputter etching with inert gas ions.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: May 8, 1979
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kent N. Maffitt, Hubert U. Brueckner, Dean R. Lowrey
  • Polymeric optical element having antireflecting surface
    Patent number: 4114983
    Abstract: An optical element of polymeric material is provided with a microstructured surface, thereby rendering the surface substantially non-reflecting while maintaining a high degree of transmissivity. The element is formed via replication from a stamper prepared from a glass original having a similar microstructured surface which is formed by etching a cleaned surface of the glass in vapors of hydrofluoric acid followed by sputter etching with inert gas ions.
    Type: Grant
    Filed: February 18, 1977
    Date of Patent: September 19, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Kent N. Maffitt, Hubert U. Brueckner, Dean R. Lowrey