| 摘要 |
PROBLEM TO BE SOLVED: To provide a camera having simple structure and capable of automatically performing focus correction. SOLUTION: A photographing lens 20 is attached to a lens holding barrel 51 so that it can freely move in an optical axis direction between a 1st focal position selected at the time of long-distance photographing and a 2nd focal position selected at the time of short-distance photographing. The lens 20 is interposed between a pressing plate 53 and a leaf spring 52. At ordinary time, an actuation lever 54 is energized by a compression spring 57 and presses the plate 53. Thus, the lens 20 is moved forward and set at the 2nd focal position. A solenoid 34 is connected to a solar battery and its movable iron core 34a is collapsed when the light quantity of a subject attains a specified value or more. Thus, the lever 54 is turned counterclockwise and presses the spring 57 to a rear side. By the action of the spring 52 released from the energizing by the spring 57, the lens 20 is moved backward and set at the 1st focal position. |
