Patents by Inventor Matthias Busker

Matthias Busker 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).

  • Speckle Reduction by Angular Scanning for Laser Projection Displays
    Publication number: 20080304128
    Abstract: The present invention provides a system (200) (300) (700) (800) and method for the reduction of speckle by applying a moving mirror (202) in the light engine of a projector. By imaging the mirror surface onto the entrance face of a multimode wave-guide (204), the beam enters the wave-guide (204) at a time-varying angle. When this wave-guide (204) is used to illuminate a display panel, the projected image on the wall has a time-varying speckle pattern. Since the period of the mirror is well below the integration time of the eye, a reduced speckle intensity is perceived. The use of the wave-guide (204) further reduces the speckle intensity due to mode scrambling.
    Type: Application
    Filed: December 13, 2006
    Publication date: December 11, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Matthias Busker, Oscar Hendrikus Willemsen, Marcellinus Petrus Carolus Michael Krijn