Title:
ELECTROMAGNETIC SHUTTER DEVICE
Document Type and Number:
Japanese Patent JPS53130018
Kind Code:
A
Abstract:
PURPOSE: To rapidly carry out the open action of a shutter, and yet, save the electric power of consumption by supplying a large electric current to a coil for driving the shutter at the initial period of driving the shutter.
Inventors:
TSUNEFUJI KATSUHIKO
Application Number:
JP4556977A
Publication Date:
November 13, 1978
Filing Date:
April 20, 1977
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
G03B9/10; (IPC1-7): G03B9/10
Domestic Patent References:
| JPS512372A | 1976-01-09 | |||
| JP46030014A |