Patents by Inventor Michael J. Raykowski

Michael J. Raykowski 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).

  • Polarizing beamsplitter assembly
    Patent number: 7475991
    Abstract: An optical unit that includes a polarizing beamsplitter (PBS). The PBS includes a reflective polarizer that transmits a portion of a light beam that has a first polarization and reflects a portion of the light beam that has a second polarization. A light absorbing device is operatively disposed relative to the PBS. The light absorbing device receives the light either transmitted or reflected by the PBS. The light absorbing device includes a light capture portion having a structured surface.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: January 13, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Jiaying Ma, Michael K. Domroese, Stephen K. Eckhardt, Glendon D. Kappel, Hamid R. Mortazavi, Michael J. Raykowski