Patents by Inventor Eberhard Piehler

Eberhard Piehler 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).

  • Projection device
    Patent number: 6580469
    Abstract: In a projection device with a matrix (50) located in an image plane for generating a video image, with optics (9) for projection of this video image on a screen and with a light source (3, 30) for illuminating the matrix (50), there is an arrangement by which the video image can be uniformly illuminated.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: June 17, 2003
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Gerd Rieche, Dietrich Schmidt, Juergen Pudenz, Hans-Juergen Meissner, Hans-Joachim Stoehr, Eberhard Piehler, Rainer Schnell
  • System in which light is directed from a light source onto a surface
    Patent number: 6439726
    Abstract: An arrangement in which light is directed onto a surface proceeding from a light source by first optics, so that an image is formed which can be detected by second optics, the arrangement having first, second and third partial optics and an optical axis as common optical axis for the first partial optics (22) and second partial optics (24) by which the second optics are formed. The light coming from the third partial optics and incident in the second partial optics encloses an angle relative to the common optical axis at which the third partial optics lie outside of an area traversed by the light reflected by the reflecting surface from the second partial optics (24) to the first partial optics (22).
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: August 27, 2002
    Assignee: Carl Zeiss Jena GmbH
    Inventor: Eberhard Piehler