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.

Date of Patent:
Mar. 22, 2022

Filed:

Dec. 19, 2019
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Katsuro Takenaka, Honjo, JP;

Shoshiro Saruta, Tokyo, JP;

Atsushi Iwashita, Tokyo, JP;

Kentaro Fujiyoshi, Tokyo, JP;

Keiichi Nomura, Kawasaki, JP;

Kazumi Nagano, Tokyo, JP;

Yohei Ishida, Kawasaki, JP;

Tomoki Komatsu, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/20 (2006.01);
U.S. Cl.
CPC ...
G01T 1/2018 (2013.01);
Abstract

A radiation imaging apparatus is provided. The apparatus includes a substrate in which conversion elements are arranged and which transmits light beams, a first scintillator arranged on a first surface side of the substrate, and a second scintillator arranged on a second surface side opposite to the first surface. The conversion elements include first conversion elements and second conversion elements. The first conversion elements are arranged so as to receive light beams from the first scintillator and the second scintillator. A light-shielding layer is arranged between the first scintillator and each of the second conversion elements so as to set light amounts of the second conversion elements from the first scintillator smaller than those of the first conversion elements from the first scintillator, and the second conversion elements are arranged to receive a light beam from the second scintillator.


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