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. 04, 1980
Filed:
Aug. 16, 1978
Applicant:
Inventors:
Katsuhiko Tsunefuji, Hachioji, JP;
Isao Kondo, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354 51 ; 354234 ;
Abstract
An electrical shutter comprises a first detent member which maintains a shutter drive member at its start position, and a second detent member which maintains a shutter in its open position. Upon abutment of the shutter drive member, both the first and second detent members are urged to move in a direction away from the drive member in response to the rotating force of the shutter drive member. The shutter also includes electrical circuits for accessory features which are connected through normally open switches with the common bus of the power source.