Camera having an electric shutter

Abstract

Abstract A SHUTTER CONTROL APPARATUS OF THE TYPE HAVING THE LEADING AND TRAILING MEMBERS WHICH ARE BIASED TOMOVE FROM RESPECTIVE COCKED POSITIONS TO RESPECTIVE REST POSITIONS FOR RESPECTIVELY INITIATING AND TERMINATING EXPOSURE, INCLUDES APPARATUS FOR SELECTING EITHER AUTOMATIC CLECTRIC EXPOSURE OR MECHANICAL EXPOSURE CONTROL. THE APPARATUS INCLUDES MEANS FOR RETAINING THE TRAILING MEMBER AT ITS COCKED POSITION AND MEANS FOR MOVING THE RETAINING STRUCTURE TO A RETRACTED POSITION WHEN THE LEADING MEMBER IS MOVED FROM ITS COCKED POSITION TO ITS REST POSITION. STRUCTURE IS ALSO PROVIDED FOR RESTRAINING THE RETAINING STRUCTURE IN ITS OPERATING POSITION AND AN ELECTRICAL TIMING CIRCUIT CONTROLS THE TIME PERIOD DURING WHICH THE RESTRAINING STRUCTURE IS OPERATIVE. LOCKING STRUCTURE LOCKS THE RETAINING STRUCTURE IN ITS RETAINING POSITION AND IS RELEASED BY A DEVICE WHICH IS RESPONSIVE TO THE MOVEMENT OF THE LEADING MEMBER FROM ITS COCKED POSITION TO ITS REST POSITION. THE LOCKING STRUCTURE IS MAINTAINED IN AN INOPERATIVE POSITION WHEN THE APPARATUS IS SET TO ANY ONE OF A NUMBER AUTOMATIC EXPOSURE SETTING POSITIONS. THE SHUTTER CONTROL APPARATUS ALSO IS CAPABLE OF CARRYING OUT BULB EXPOSURES EITHER USING A COMBINED MECHANICL AND ELECTRICAL EXPOSURE CONTROL, OR IN A MODIFIED EMBODIMENT, THE BULB EXPOSURE IS COMPLETELY EFFECTED BY MECHANICAL MECHANISM ONLY.

Inventors

• 👤 T Kobori

Bibliographic Details