| 摘要 |
<p>PURPOSE:To display almost simultaneously a rectifying state and a dimming state of an electronic flasher in a finder of a camera, by transmitting a rectifying completion signal and a dimming completion signal in order and in the lapse of time series to a camera through the same connecting terminal. CONSTITUTION:In the figure, the upper part from one point chain line shows a circuit of an electronic flaher, and the lower part shows a circuit of a camera. When an integrally photodetected quantity at an integral capacitol 58 in a light quantiy integration circuit 28 reaches a prescribed value, an H level signal is outputted, and is applied to a signal output part 31 in a lapse of time series as a dimming completion sgnal. In a signal output part 31 in a lapse of time series an OR circuit 74 and an output resistance 75 output, in the lapse of time, a rectifying completion signal outputted through an AND circuit 72 from a rectifying completion detecting circuit 25, and a dimming completion signal outputted through a one-shot 73 to a connecting terminal J3.</p> |
