Patents by Inventor Rudy J.H. Van Den

Rudy J.H. Van Den 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).

  • Compact Stepping Lens Actuator for Mobile Cameras
    Publication number: 20080186589
    Abstract: An actuator (100) including: a housing (102); a driven member (104) movably disposed with respect to the housing; a magnet (114) associated with the driven member and a ferric member (112) for providing a magnetic attraction force between the driven member and the ferric member for providing a normal force (Fn) between the housing and driven member such that a friction force between the housing and driven member resulting from the normal force must be overcome to initiate a relative movement between the housing and driven member; and a magnetic drive system (118, 120) for overcoming the friction force and driving the driven member relative to the housing. The driven member can be a lens holder for holding a lens (106), in which case, the actuator can further include an image sensor (110) for acquiring image data through the lens.
    Type: Application
    Filed: April 24, 2006
    Publication date: August 7, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Gerardus L.M. Jansen, Rudy J.H. Van Den