AUTOMATIC FOCAL LENGTH MATCHING DEVICE OF MOTOR DRIVEN CAMERA

摘要

PURPOSE:To make possible the preliminary photometry of focus and reduce the time loss at the time of distance matching by performing shutter charging and moving of a movable mirror by way of one shaft which is driven by a motor. CONSTITUTION:The device is provided with an eccentric cam 20 operated by a shaft 13 which is revolved by a motor 1 and charges a shutter 28 and a mirror for automatic focal length matching moved by the cam 20. While the storage of focusing is being accomplished, the shutter 28 is charged and based on this storage, the focusing is accomplished after this.