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. 06, 2019
Filed:
Apr. 19, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A radiation phase change detection method includes: arranging a two-dimensional optical image pickup element, which includes a scintillator, so that, when a period of a self-image generated through a phase grating is defined as D, and a pixel pitch of the two-dimensional optical image pickup element is defined as D=kD, k falls in a range of ½<k≤3/2, and so that interference fringes formed by Dand Ddepending on a relationship in arrangement of the two-dimensional optical image pickup element with respect to the self-image have a period of 2 times Dor more and 100 times Dor less; acquiring images of the interference fringes before and after insertion of an object; and outputting an image on a phase change of the radiation caused by at least the object.