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:
Jan. 14, 1992
Filed:
Sep. 24, 1990
Applicant:
Inventors:
Hans-Juergen Gerlach, Erlangen, DE;
Juergen Reimer, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
378207 ; 378162 ;
Abstract
An x-ray apparatus including an x-ray source with a primary radiation diaphragm attached thereto has a luminescent foil disposed in the interior of either the x-ray source or the primary radiation diaphragm at a location so that the x-ray beam is incident thereon. Interaction of the luminescent foil with the x-ray beam causes the foil to emit light, which is conducted to an exterior of the apparatus by an optical waveguide. The light is therefore visible at a location at the exterior of the unit, such as in the housing, as a reliable indicator that x-rays are actually being generated.