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.:

US 6584173 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 24, 2003

Filed:

Sep. 18, 2001
Applicant:
Inventors:

Paul Zwart, Eindhoven, NL;

Robert Derk Jan Hendrik Hofsink, Eindhoven, NL;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21K 3/00 ;
U.S. Cl.
CPC ...
G21K 3/00 ;
Abstract

The invention concerns an X-ray examination device, including an X-ray source and an X-ray detector, for forming an X-ray image of an object, an X-ray filter, arranged between the X-ray source and the X-ray detector, and adjusting circuit, connected to the X-ray filter for adjusting it. The adjusting circuit comprises a graphics device, cursor control for defining a region of interest in an image of the object, displayed on the graphics device, and image-processing unit, connected to the X-ray filter, for calculating the region of interest and adjusting the filter accordingly. The X-ray filter includes filter elements having an X-ray absorptivity which can be adjusted by controlling a quantity of X-ray absorbing liquid within the individual filter elements. The filter elements are capillary tubes, and adjusting circuit applies electric voltages to the individual capillary tube for controlling the quantity of X-ray absorbing liquid in the tube.


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Zwart, Paul. (2003). X-ray examination device comprising a manually adjustable filter (U.S. Patent No. 6584173). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6584173

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