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:
Nov. 19, 1991
Filed:
Jan. 16, 1991
Applicant:
Inventors:
Arthur Gall, Langensendelbach, DE;
Adelbert Kupfer, Poxdorf, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05G / ;
U.S. Cl.
CPC ...
378 99 ; 378 98 ; 358111 ;
Abstract
An x-ray diagnostics installation for producing x-ray images has an x-ray image intensifier and a detector for measuring the average image brightness in a dominant region of the output screen of the x-ray image intensifier, and a gating unit with which the size and position of the dominant region can be varied. The gating unit is in the form of a tape roll of opaque material having a number of differently sized and shaped openings therein, corresponding to different desired measuring fields. A large number of differing dominant regions can thereby be selected by means of a unit which occupies a small space.