Title:
ELECTROMIC SHUTTER UNIT FOR CAMERA
Document Type and Number:
Japanese Patent JPS51120215
Kind Code:
A
Abstract:
A camera shutter has opening and closing blades mounted to be sequentially moved to effect exposure of film in the camera. The opening blade moves to permit an exposure to begin and the closing blade is retained, by a light responsive electromagnetic circuit, in a position to permit the exposure to continue for a duration related to scene brightness. An armature, controlled by the electromagnetic circuit, engages the closing blade and is engaged by the opening blade throughout a portion of its opening movement, thus preventing release of the closing blade prior to the opening blade reaching a preset position in its movement. In the event that the electromagnet is inoperative, the delay of the closing blade is determined by the time that the opening blade engages the armature.
Inventors:
FUROIDO EMU GARUBUREISU JIYUNI
Application Number:
JP2937376A
Publication Date:
October 21, 1976
Filing Date:
March 19, 1976
Export Citation:
Assignee:
EASTMAN KODAK CO
International Classes:
G03B7/26; G03B9/36; G03B9/40; G03B9/62; (IPC1-7): G03B7/08; G03B9/40