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:
Nov. 03, 1987
Filed:
May. 02, 1985
Masahide Kanno, Hachioji, JP;
Atsushi Amano, Hachioji, JP;
Seiichi Hosoda, Fuchu, JP;
Shinichiro Hattori, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a light source device for an endoscope including a lamp to flash or to normally emit light according to current fed thereto, a shutter for photographing, and a diaphragm for photographing/observing. In the light source device, the amount of light emitted is variable. In response to a supplied check start command signal, except when the endoscope body is used, the light source device successively checks at least two of the following items; the operation of the shutter, the operation of the diaphragm, normal light emission of the lamp and the flashing of the lamp. Then, the light source device automatically checks, according to the amount of light detected by a photosensitive element, whether the above functions are operating normally or not, and displays the result of the check.