Patents by Inventor Ute Gehrmann

Ute Gehrmann 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).

  • Condenser system for microscopes
    Patent number: 5872651
    Abstract: An exchangeable condenser system for a phase-contrast illuminating system (12) for microscopes has a plurality of different light rings (5), arranged on a nosepiece plate (4), assigned to the condenser optical system (6). The condenser optical system (6) can be exchanged independently of the light rings (5), the focal lengths F.sub.n of the exchangeable condenser optical systems (6) being selected relative to one another in the ratio F.sub.n =F.sub.0 *X.sup.n and the average diameters D.sub.n of the light rings (5) being selected relative to one another in the ratio D.sub.n =D.sub.0 *X.sup.n, where X>0, n=0,1,2,3, . . . .
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: February 16, 1999
    Assignee: Leica Mikroskopie und Systeme GmbH
    Inventors: Rolf Krueger, Hans-Werner Stankewitz, Ute Gehrmann, Peter Euteneuer