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:
Jun. 12, 1984
Filed:
Nov. 29, 1982
Applicant:
Inventor:
Fumiaki Hiraike, Hachioji, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
3542711 ; 354452 ;
Abstract
The invention is directed to an improved method and apparatus for controlling the aperture blades of a camera in which the aperture stop-down position is controlled by the number of pulses applied to pulse motors. In the present case, the unit-pulse numbers which determine the aperture stop-down position are split into at least two groups, one of which is a multiple of the other, and the blades are moved into the desired position by applying both groups of pulses to the pulse motors.
Hiraike, Fumiaki. (1984). Method and means for controlling the aperture blades of a camera through (U.S. Patent No. 4453816). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4453816
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile