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:
Mar. 04, 2003
Filed:
Jul. 06, 2000
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A large-area and compact radiation image pickup device is provided in which an imaging optical system is arranged between a solid image pickup element and a wavelength converting member, and a radiation such as x-rays as converted into the sensitive wavelength region of the solid image pickup element by the wavelength converting member is guided by the imaging optical systems to convert the radiation into an electric signal by a plurality of photosensors. The radiation that has passed through the wavelength converting member is absorbed by a light transmissive member or a unity magnification erectly imaging optical system, thereby reducing or preventing irradiation of the photosensors or the like with the radiation.