Exposure control system

摘要: A system for controlling the closing of a camera shutter includes photosensitive means detecting available light level in field view to provide an output control signal predetermined time after initiation closure dependent on detected level. The power supply bidirectional linear magnetic generator which spring drive is mechanically loaded and unloaded by film advance mechanism exposure circuitry. solenoid, such as rotary solenoid or magnetically latches open position during until coil energized at completion required neutralize flux stator overcoming latch and, due spring, thereafter biasing armature second which, through mechanical linkage camera, closes shutter.