Automatic focusing device for camera

摘要

An automatic focusing device for an automatic focusing camera of the double image coincidence focusing type. A coupling mechanism causes an focus detecting movable mirror perform scanning motion according as the stroke of shutter releasing operation. Interlocking with the push-down of the shutter release button, focus detecting motion is performed while the distance from the focal plane to the photographing objective is indicated and/or memorized. During the first half of shutter releasing operation, focus detection and indication and/or memorization of the distance from the focal plane to the photographing objective are performed by the scanning motion of the movable mirror, and during the latter half of the shutter releasing operation, the indication and/or the lense focusing mechanism are controlled by a signal motion corresponding to the memorized value. The memorized value is scanned interlocked with the movement of a timing member released by shutter releasing operation or a focusing member and a lense displacement regulating mechanism is controlled by a signal motion corresponding to the memorized value.