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:
Feb. 07, 1978
Filed:
Mar. 15, 1976
Applicant:
Inventor:
Toshihiro Kondo, Chofu, JA;
Assignee:
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354 51 ; 320-1 ; 354234 ;
Abstract
An oscillator is connected with a DC power source for generating an oscillating output current. A plurality of capacitors are connected with the oscillator by way of diodes and are charged by the output current from the oscillator. The connecting point between each capacitor and its associated diode is connected via a switching circuit to an electromagnetic coil. For instance, one capacitor is connected with a coil for driving a leading shutter blind and another capacitor is connected with a coil for driving a trailing shutter blind.