| 摘要 |
PROBLEM TO BE SOLVED: To freely set the emitted light quantity and the lighting timing of a light emitting diode by increasing or decreasing the number of windings for a light emitting diode without influencing the charge characteristic of a booster circuit. SOLUTION: The oscillation transistor TR1 of the booster circuit 31 is provided with a quaternary winding W4 dedicated to the light emitting diode separate from the primary winding W1 to the tertiary winding W3 for emitting strobe light. An LED lighting circuit 33 independent of the circuit 31 is constituted by connecting the light emitting diode LED and a resistance R3 in series, and connecting the side of the light emitting diode LED to one end of the quaternary winding W4 and the side of the resistance R3 to the other end thereof, respectively. |
