Patents by Inventor Matthias Geisbauer

Matthias Geisbauer 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: 9512460
    Abstract: The present invention relates to a method of studying a sample using an optical microscope, comprising providing the sample in a sample holder with means to maintain the sample at a temperature below 273 K; providing a microscope objective lens, in a thermally insulating jacket, having an extremal lens element proximal to the sample holder; bringing the lens into a focus position proximal to the sample, which separates the extremal lens element and sample by an intervening space, providing a transparent window in said intervening space, with a gap between the window and the extremal lens element; providing a flow of substantially dry gas in said gap; and tailoring the geometry and velocity of said flow so that, at least in said gap, the flow is non-laminar; and does not excite substantial acoustic vibration in a structure proximal the gap.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: December 6, 2016
    Assignee: FEI COMPANY
    Inventors: Tobias Mayer, Rainer Daum, Matthias Geisbauer, Rudolf Johannes Peter Gerardus Schampers, Johannes Antonius Hendricus Wilhelmus Gerardus Persoon
  • Publication number: 20140248649
    Abstract: The present invention relates to a method of studying a sample using an optical microscope, comprising providing the sample in a sample holder with means to maintain the sample at a temperature below 273 K; providing a microscope objective lens, in a thermally insulating jacket, having an extremal lens element proximal to the sample holder; bringing the lens into a focus position proximal to the sample, which separates the extremal lens element and sample by an intervening space, providing a transparent window in said intervening space, with a gap between the window and the extremal lens element; providing a flow of substantially dry gas in said gap; and tailoring the geometry and velocity of said flow so that, at least in said gap, the flow is non-laminar; and does not excite substantial acoustic vibration in a structure proximal the gap.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 4, 2014
    Applicant: FEI Company
    Inventors: Tobias Mayer, Rainer Daum, Matthias Geisbauer, Rudolf Johannes Peter Gerardus Schampers, Johannes Antonius Hendricus Wilhelmus Ge Persoon