MOTOR DRIVER DIAPHRAGM SHUTTER

摘要

A photographic camera is provided with a shutter blade system that simultaneously serves to set the shutter opening. The shutter blade system is movable out of the closed position by means of a setter in opposition to the force of a return spring. A motorized drive operates to open the shutter blade system and is operatively connectable to the setter so as to periodically switch the setter ahead. An electronic control device is operatively connected to the motorized drive. The control device, relative to the time of the start of the motor drive, provides a switch impulse to an electro-mechanical mechanism which brings about a separation of the connection between the motorized drive and the setter according to a pre-selected or light-dependent determined time interval ascertained by a light-sensitive element.