Invention Grant
- Patent Title: Collimator with an adjustable focal length
- Patent Title (中): 准直器具有可调焦距
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Application No.: US11878785Application Date: 2007-07-26
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Publication No.: US08472587B2Publication Date: 2013-06-25
- Inventor: Norbert Haunschild , Ullrich Herda , Uwe Siedenburg , Martin Hartick , Patricia Schall
- Applicant: Norbert Haunschild , Ullrich Herda , Uwe Siedenburg , Martin Hartick , Patricia Schall
- Applicant Address: DE Wiesbaden
- Assignee: Smiths Heimann GmbH
- Current Assignee: Smiths Heimann GmbH
- Current Assignee Address: DE Wiesbaden
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Priority: DE102005016656 20050126
- Main IPC: G21K1/04
- IPC: G21K1/04 ; G21K1/02 ; G01N23/20

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.
Public/Granted literature
- US20110182404A1 Collimator with an adjustable focal length Public/Granted day:2011-07-28
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