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. 21, 1979
Filed:
Jun. 23, 1977
Hiroshi Ishijima, Tokyo, JP;
Abstract
Radiant rays irradiated from the source penetrate through an object in which inserts or the like are disposed at some distances. A radiant ray detector is provided at the opposite side of the object to the source to detect the radiant rays passed through and somewhat absorbed in the object. A slit or collimator is arranged movable along the object between the source and the detector. The output of the detector changes in accordance with the travel of the slit since the absorption coefficient of the inserts is different from that of the matrix. The output is displayed with a graphic display and further is operated into digital signals for computer input or indicating. The position signal of the slit is used for the display and for digital indicating.