| 摘要 |
An automatic focus control device for including a distance setting ring for focusing a taking lens, and an adjusting ring for a light receiving lens, a shutter operating button and a shutter release member includes a rack member engaged with external gear teeth on the setting ring and mounted for longitudinal reciprocation. A drive slide is mounted parallel to the rack member for longitudinal reciprocation, and a spring biases the slide toward a shutter release member. A disk movable in accordance with advance of the film operates a lever to conjointly displace both the rack member and the slide against the bias of the spring and a position where the rack member and the slide are releasably latched by locking means which is released by the shutter operating button. A catch on the slide engages a laterally extending pin on the rack member so that the rack member is moved conjointly with the slide when the shutter button is operated. An electromagnet is operable to release this latch member and receives an electric signal from photoelectric transducers associated with the light receiving lens and providing an electric output signal corresponding to the distance of a subject from the camera. When the subject is in proper focus, the electromagnet is energized to release the latch so that the rack member remains stationary while the slide continues its movement to operate the shutter release.
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