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:
Aug. 04, 1992
Filed:
Jan. 23, 1991
Waldemar Lumma, Hamburg, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
A luminescent layer is exposed to X-rays or gamma rays and whose luminescence is converted into an electric signal by a photo-electric transducer. Sensitivity variations of the combination formed by the luminescent layer and the transducer are compensated for in that the luminescent layer is repeatedly exposed to an electric field, during which exposure the sensitivity of the luminescent layer and the transducer is measured and stored, a calibration factor of the measuring device is created and changed each time in dependence on the stored sensitivity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile