ILLUMINATING DEVICE FOR FLASH

摘要

PURPOSE:To execute an illumination and a light emission even in case the capacity of a power source battery is reduced, by varying a duty of the light emission quantity for an illumination executed before photographing in accordance with a power supply voltage. CONSTITUTION:A light emitting part 4 is attached to the tip of a lens barrel 2, and this light emitting part 4 contains a discharge tube the lamp being an illuminating light source. A control power source. A control power source part 3 installed to a shoe part of a camera 1 contains a discharge tube and a control circuit for controlling the illuminating light source. This control power source part 3 varies a duty of the light emission quantity for an illumination by the illuminating light source in accordance with a power supply voltage.