Patents by Inventor Pentti Ablgren

Pentti Ablgren 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).

  • Digital camera system with piezoelectric actuators
    Patent number: 7298564
    Abstract: A digital camera is constructed with multiple lenses mounted in a pair of tubular elements which are nested together for relative axial movement. Movement is provided by piezoelectric actuators mounted externally to a support tube on flexible printed circuit board elements. Each lens tube is provided with a drive rail which extends at least partially over the length of the lens tube and projects radially outward from the periphery of each of the tubes. The rails are accessible to the engagement pads of the piezoelectric actuators to allow the transmission of drive forces to each of the tubes.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: November 20, 2007
    Assignee: Nokia Corporation
    Inventors: Jarkko Rouvinen, Ilpo Kauhaniemi, Pentti Ablgren, Stefan Johansson, Christer Mattsson
  • DIGITAL CAMERA SYSTEM WITH PIEZOELECTRIC ACTUATORS
    Publication number: 20070153404
    Abstract: A digital camera is constructed with multiple lenses mounted in a pair of tubular elements which are nested together for relative axial movement. Movement is provided by piezoelectric actuators mounted externally to a support tube on flexible printed circuit board elements. Each lens tube is provided with a drive rail which extends at least partially over the length of the lens tube and projects radially outward from the periphery of each of the tubes. The rails are accessible to the engagement pads of the piezoelectric actuators to allow the transmission of drive forces to each of the tubes.
    Type: Application
    Filed: March 13, 2007
    Publication date: July 5, 2007
    Applicant: NOKIA CORPORATION
    Inventors: Jarkko Rouvinen, Ilpo Kauhaniemi, Pentti Ablgren, Stefan Johansson, Christer Mattsson