| 摘要 |
PURPOSE:To perform the photographing of accurate focusing with a simple constitution by restraining the photographing-lens-moving helicoid by the lock member which interlocks to an electromagnetic magnet for releasing shutter release-system lock by focusing signal. CONSTITUTION:When an electromagnetic magnet 20 is de-energized by the focusing signal, a release second stage lock member 10 is turned by the elastic force of a spring 21, and the second stage lock of a shutter button 12 is released. The pin 24 of a photographing lens 11 is pressed by turning of this member 10, by which a restraining member 28 is tilted with a support portion 28a as a fulcrum and its inside peripheral edge part abuts against the cylindrical part 27 of a helicoid 26, causing the helicoid 26 for moving the lens 11 to be locked at the focusing. Hence, if the automatic focusing camera of this simple constitution is used, the out-of- focus does not occur and the photographing of the matched focus may be surely accomplished. |
