Patents by Inventor Burkhard Bufe

Burkhard Bufe 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).

  • Modular illumination equipment
    Patent number: 5136429
    Abstract: Modular illumination system for transmitted-light microscopes, embodying the Koehler illumination principle, and usable on microscopes of short or long optical transmission length, including a telecentering lens disposed in the light beam path defined according to Koehler between the luminous field diaphragm and the aperture diaphragm and imaging the luminous field diaphragm at infinity the telecentering lens is displaceable, preferably perpendicularly to the optical axis.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: August 4, 1992
    Assignee: Jenoptik Jena GmbH
    Inventors: Joachim Bergner, Burkhard Bufe, Hubert Wahl