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. 22, 1978
Filed:
Jan. 18, 1977
Applicant:
Inventors:
Kunio Arisaka, Urawa, JP;
Hiroyuki Harada, Kawaguchi, JP;
Assignee:
Copal Company Limited, , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354 38 ; 354230 ;
Abstract
A shutter for cameras comprising an intermediate lever to open and close shutter blades serving as diaphragm blades, a driving member which can open and close the shutter blades by rocking the intermediate lever while moving in one direction, a device which can vary the leverage of the intermediate lever by shifting the pivot of the intermediate lever with an EE mechanism and/or flashmatic mechanism and a synchroswitch operated by the driving member in order to make a flash-photographing possible at all shutter speeds.