| 摘要 |
PURPOSE:To warn securely the deficiency in a source voltage by allowing normal operation when the voltage of the power source incorporated in a camera in higher than a specific voltage, and allowing a movable reflecting mirror from moving up when the voltage drops below the specific voltage, but inhibiting the operation of a shutter mechanism. CONSTITUTION:A source voltage warning device 57 locks the rotation of the movable reflecting mirror 1 at an upper position when the source voltage is lower than the specific value and also inhibits the leading curtain 4 of the shutter mechanism from running to hold exposure inhibited, warning a user that the source voltage is lower than the specific voltage. An electromagnet device 58 which does not performs attracting operation when the source voltage is lower than the specific value and performs the attracting operation when lower and a shutter release locking mechanism 59 whose operation is controlled by it are provided, and a source voltage warning device 57 is arranged under the movable reflecting mirror 1 adjacently to a shutter releasing mechanism 33. |
