Patents by Inventor Ernst Strauch

Ernst Strauch 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).

  • Process and arrangement for the alignment of imaging systems
    Patent number: 4238157
    Abstract: A process and apparatus for the alignment of the image plane of an imaging system with the interception plane of the image utilizing a measuring mark reproduced by at least two partial pupils of the imaging system. The two imaging beams associated with the partial pupils are distinguishable from one another and at least one partial pupil is moved over the full pupil of the imaging system. A minimum movement of the image of the measuring mark corresponds to alignment of the image and interception planes.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: December 9, 1980
    Assignee: Ernst Leitz Wetzlar GmbH
    Inventors: Ernst Strauch, Rudi Faatz