The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2013
Filed:
Jul. 26, 2007
Norbert Haunschild, Aarbergen, DE;
Ullrich Herda, Wiesbaden, DE;
Uwe Siedenburg, Essenheim, DE;
Martin Hartick, Bad Nauheim, DE;
Patricia Schall, Weiterstadt, DE;
Norbert Haunschild, Aarbergen, DE;
Ullrich Herda, Wiesbaden, DE;
Uwe Siedenburg, Essenheim, DE;
Martin Hartick, Bad Nauheim, DE;
Patricia Schall, Weiterstadt, DE;
Smiths Heimann GmbH, Wiesbaden, DE;
Abstract
The invention relates to a collimator with adjustable focal length, especially for use in X-ray testing devices whose operating principle is based on diffraction phenomena in an object. Fixed focal length collimators used in such X-ray testing devices have to be displaced over a large range. The aim of the invention is to reduce the range of displacement. For this purpose, the collimator has at least two diaphragms having respective substantially circular slots arranged about a common center axis, wherein at least one diaphragm can be displaced along the center axis.