PURPOSE: To provide charge display part structure capable of displaying the charged state of a stroboscope by making a display lamp displaying the completion of the charge of the stroboscope incorporated in a camera appear in the outside surface of the camera or keeping the display lamp secret in an operational part operating the main switch of the camera by means of the movement of the operational part.

CONSTITUTION: A main switch knob 11 opening/closing the main switch 24, is freely slidably provided in a guiding recessed part 11a formed on the outside surface of the camera. A lamp display window 12 is provided on a part appearing by the sliding of the main switch knob 11, or kept secret by the main switch knob 11, in its sliding area, and a display lamp 22 displaying the charged state of a stroboscope is disposed so as to face the lamp display window 12, so that the turning on/off of the display lamp 22 can be confirmed through the lamp display window 12. The lamp display window 12 appears by the operation of the main switch knob 11 to turn on the main switch 24, and the lamp display window 12 can be kept secret by the operation for turning off the main switch 24.