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:
Jul. 08, 2008
Filed:
Jun. 01, 2005
Akira Ishisaka, Hachioji, JP;
Akira Ishisaka, Hachioji, JP;
Abstract
The present invention is directed to a radiation image reading system. The system includes a radiation source for irradiating a radiation toward a subject. The radiation source has a size 'D'. A radiation detector in which large number of detecting devices for detecting the radiation transmitted through the subject are arranged in an array form, for generating an image signal of the subject by detecting the radiation transmitted through the subject by each of the detecting devices. An aperture of each of the detecting devices has a size 'A'. Also included is a sampling section for sampling the image signal. The size A of the aperture fulfills a condition of B≦A≦2B. B is a size of a penumbra on the radiation detector. The size B of the penumbra is represented by B=Dx (R2/R1), where R1 is a distance from the radiation source to the subject and R2 is a distance from the subject to the radiation detector.