Voltage detecting device for camera

摘要

A voltage detecting device for a camera arranged to use an analog-to-digital converter of the camera in common. A signal representing the power source voltage of the camera to be detected is impressed on an integrator of the analog-to-digital converter. There is provided an annunciating means such as a light emitting diode or a sound emitting body which changes the condition of the output thereof alternately in accordance with charge and discharge of the integrator and has a span of output time in each of the output conditions corresponds to a span of charge time or a span of discharge time of the integrator.