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:
Apr. 10, 1990
Filed:
Apr. 20, 1987
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A radiation image recording and reproducing method comprises the steps of scanning a stimulable phosphor sheet carrying a radiation image stored thereon with stimulating rays, and detecting light emitted by the stimulable phosphor sheet upon stimulation by stimulating rays to obtain an image signal. The image signal including a stimulated light emission signal and an after-glow signal representing a stimulated light emission after-glow emanated by the portion of the stimulable phosphor sheet no longer being exposed to stimulating rays is detected in such a condition that the level of the after-glow signal at a position on the stimulable phosphor sheet 20 mm beyond the position where exposure to stimulating rays is completed is not higher than 10.sup.-2.5 times the level of the stimulated light emission signal, and the level of the after-glow signal at a position 430 mm beyond the position where exposure to stimulating rays is completed is not higher than 10.sup.-3.3 times the level of the stimulated light emission signal.