| 摘要 |
<p>PURPOSE:To prevent a light emission error of a slave stroboscopic lamp, by emitting the slave stroscopic lamp only when the next photodetecion has been executed in a prescribed period from the first photodetection, and detecting the stand-by light emission of a master stroboscopic lamp and its regular light emission after a prescribed time has elapsed. CONSTITUTION:When a photodetecting element 301 detects the stand-by light emission of a master stroboscopic lamp, an output of an AC amplifier 300 becomes an L level, and is changed to an H level when the light emission is stopped. As a result, the first timer 400 is triggered, the first switching circuit 500 becomes an operating state only for a period T2, and when regular light emission occurs within this period, an H level output is generated by receiving an output signal of the amplifier 300, and SCRs 11' 20' of the light emitting circuit are made conductive. In this way, a slave stroboscopic lamp starts to emit light. The third switching circuit 900 outputs a signal for stopping the light emission of the slave stroboscopic lamp, when the light emission of the master stroboscopic lamp is stopped.</p> |
