| 摘要 |
PURPOSE:To compactly constitute a camera by using both auxiliary light used for automatic focus adjustment and the operation pilot lamp of a self-timer. CONSTITUTION:The auxiliary light for focus detection is used even for the operation display of the self-timer in common. When a low-level control signal is inputted, an LED driving circuit 17 is connected to an LED 30 through a selector circuit 19 and when a high-level signal is inputted, on the other hand, an LED driving circuit 18 is connected to an LED 30. A trigger circuit 20 con nected to a timer circuit 16 sends out a shutter release signal to the signal line (n) of a trigger circuit 14 at the timing of a fall in the output of the timer circuit 16 from a high level to a low level, namely, when the counting of the timer circuit up to a specific time is completed. A shutter driving circuit 21 operates with a signal from a CPU 10 when the shutter release signal is inputted to the CPU 10 from the trigger circuit 14 or 20, thereby driving the shutter. |
