Patents by Inventor Gunter Schmal

Gunter Schmal 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).

  • Patent number: 5550887
    Abstract: An X-ray microscope has the following features: a pulsed x-ray source that delivers an intense line radiation, an annular condenser that focuses the radiation of the X-ray source on the object to be investigated, an X-ray optics constructed as a micro zone plate that images the object with high resolution on an X-ray detector, and a phase ring positioned in the rear focal plane of the micro zone plate and applies to the zero order X-ray radiation coming from the object a phase shift, with respect to the higher order radiation deflected by the object structures, which is determined by the thickness and material of the phase ring. The phase shift amounts, for example, to 90.degree. or 270.degree..
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: August 27, 1996
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Gunter Schmal, Dietbert Rudolph