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. 05, 1986
Filed:
Feb. 26, 1986
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
The invention concerns electroradiographic image recording and reproducing apparatus in which a radiation image is stored as an electrical charge pattern in a photoconductive layer (6). This image is then converted, by scanning with a beam of light (22), into a sequence of electrical signals which are picked up by strip electrodes (7) arranged on the photoconductive layer surface. The signal-noise ratio may be improved and a large number of amplifiers may be eliminated, according to the invention, by providing a discharge electrode (8) on the photoconductive layer (6) at a distance from the ends of strip electrodes (7). During read-out, the respective strip electrode (7) along which the scanning takes place is electrically connected with the discharge electrode (8) by illuminating (23) the intermediate space (25) between the latter and the strip electrode (7). Such an apparatus is useful, in particular, for the visual reproduction of X-ray images in medical X-ray diagnostics.