摘要 |
<p>PURPOSE:To precisely emit strobe light with the aid of simple constitution by providing a voltage measurement means, a light quantity calculating means, a voltage calculating means, a time calculating means and a light emission control means. CONSTITUTION:The voltage measurement means 8, the light quantity calculating means 13 and the voltage calculating means 14 which calculates the voltage of a main capacitor 3 when light emission is stopped based on a measured charging voltage and calculated light quantity are provided. Besides, the time calculating means 15 which calculates the light emitting time of the stroboscope that the voltage of the capacitor 3 arrives at the voltage when the light emission is stopped from the charging voltage before the light emission and the light emission control means 16 which controls the light emission and stop of a light emitting tube based on the emitting time of the stroboscope are provided. Therefore, a discharging voltage and s discharging time for obtaining the light quantity required for photographing are calculated by the means 14 and the means 15 based on the charging voltage of the capacitor 3 before the light emission. Besides, the light emission and stop of the light emitting tube is controlled by the means 16 based on calculated data. Thus, the cost of a stroboscope controller and the space thereof are reduced. As the result, the strobe light is precisely emitted with the simple constitution.</p> |