| 摘要 |
<p>PURPOSE:To easily expose with special illuminating effect or to erase etc. shadow by providing a light emission controlling device that controls time of light emission to prevent overlapping of light emitting period of the first and second light emitting devices. CONSTITUTION:By closing an X contact, the output of a one-shot multivibrator circuit thetaS9 goes to ''High'', and an FF15 is reset. At the same time, the reset state of a counter Ctheta5 is released, and a decoder DE3 attains to the state capable of output. The decoder makes the outputs from terminals tau5-tau9 ''High'' at every specified time from close of the X contact, and the first light emission signal ST2 that goes to ''High'' output in the period from close of the X contact to tau5 output, and the second light emission signal ST1 that goes to ''High'' output in the period from tau6 output to tau7 output, are generated successively or separately according to light emission mode selected by the state of output of terminals theta10-theta13.</p> |
