Patents by Inventor Volker Wittstock

Volker Wittstock 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).

  • Publication number: 20100060973
    Abstract: Disclosed is an imaging device for influencing incident light, comprising an optical element in the form of a mirror and an actuator for deforming the optical element. The optical element has a surface facing the incident light. The actuator laterally grips the optical surface of the optical element in order to deform the optical element.
    Type: Application
    Filed: February 28, 2008
    Publication date: March 11, 2010
    Applicant: SeeReal Technologies S.A.
    Inventors: Jean-Christophe Olaya, Sahm Hagen, Kranz Burkhard, Hans-Jurgen Roscher, Volker Wittstock, Klaus Wold
  • Publication number: 20090046348
    Abstract: An imaging apparatus for influencing impinging light comprising an optical element and an actuator for deforming the optical element is proposed. The optical element has a surface facing the impinging light and the actuator (3) has at least one piezoelectric element. In this case, the piezoelectric element is able to be driven by means of a control device. Moreover, the piezoelectric element is fitted to a rear surface and/or to that surface of the optical element which faces the impinging light. The optical element is borne by means of at least one such bearing element that has direction-dependent compliances for in each case at least one degree of freedom of rotation and/or degree of freedom of displacement, such that it is possible to achieve a substantially longitudinal-force-free bending with a substantially fixed overall position of the optical element.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 19, 2009
    Inventors: Hagen Sahm, Hans-Jurgen Roscher, Grit Triebel, Volker Wittstock, Klaus Wolf
  • Patent number: 5891488
    Abstract: The invention relates to a mold closing device without cross-beam for an injection molding machine having a C-shaped machine frame, a fixed tool mounting plate supported therein and an end plate, as well as a movable tool mounting plate longitudinally movable on antifriction guideways and guide bars. It is the object of the invention to provide an inexpensive and simple adjustment which assures the concentricity between the fixed tool mounting plate and the end plate during deformation of the machine frame as a result of the closing force and which eliminates the machining tolerances among the hinge points on the guide bars. The solution provides that the guide bars are horizontally frictionally attached to the machine frame, are vertically biasable via springs against the fixed tool mounting plate and against the end plate, and are supportable via springs between the end plate and the fixed tool mounting plate.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: April 6, 1999
    Assignee: Hemscheidt Maschinentechnik Schwerin GmbH & Co.
    Inventors: Volker Wittstock, Klaus Fuller