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:
Apr. 05, 1988
Filed:
Jan. 22, 1985
Takao Kuroiwa, Amagasaki, JP;
Sunao Oshibe, Nishinomiya, JP;
Atsushi Utsumi, Kawanishi, JP;
Toshiyuki Nakajima, Kawaguchi, JP;
Kohei Morisaki, Hyogo, JP;
Masatoshi Takamatsu, Hyogo, JP;
Shoichi Hamada, Hyogo, JP;
Junji Nakayama, Hyogo, JP;
Yoshiaki Kondo, Tokyo, JP;
Dainichi-Nippon Cables, Ltd., Hyogo, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A fiber scope of the side-viewing type includes an image guide and two light guides disposed on both sides thereof in an objective part. The fiber scope is suitable for the observation of the surface of long articles assembled with narrow gaps therebetween as in an assembly of nuclear fuel rods in a nuclear reactor and a wide field of view can be secured even if an object to be observed stands within a point-blank range of an objective part. Also a plurality of long articles can be simultaneously observed by the fiber scope or the observation can be carried out while moving the fiber scope in the scanning direction. If the fiber scope is used in a radioactive environment, highly radiation resistant optical fibers are used.