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. 18, 1987
Filed:
Jun. 05, 1985
Toshitaka Aagano, Kanagawa, JP;
Yoshimi Takasaki, Kanagawa, JP;
Fuji Photo Film Co., Ltd., , JP;
Abstract
In a radiation image recording and reproducing system using a stimulable phosphor sheet, a voltage generated at a bleeder resistor of a photomultiplier for conducting image read-out is detected at the step of radiation image read-out at least for the stimulable phosphor sheet or a portion thereof where the level of X-ray exposure amount is higher than a predetermined level, and the exposure amount of erasing light is controlled on the basis of the detected voltage. Or, the erasing light exposure amount is controlled on the basis of an output current of the photomultiplier when the output current is equal to or smaller than a predetermined value when is smaller than a saturated value of the output current, and the bleeder resistor voltage of the photomultiplier is detected and the erasing light exposure amount is controlled on the basis of the detected voltage when the output current of the photomultiplier is larger than the predetermined value.