PERFEZIONAMENTO NEI DISPOSITIVI LAMPEGGIATORI ELETTRONICI

摘要

The invention provides an electric flash apparatus comprising two flash tubes 24, 54, each with a triggering circuit and both fed from a single main storage capacitor 18. The combined light output of the flash tubes is sensed and the tubes quenched at the same time so that their flash duration is coextensive. The second flash tube circuit can be disconnected so that the first tube can be flashed alone. The first tube can be mounted in a pivotable casing so that the direction of the flash is varied while the second flash tube can be substantially annular and surround the camera lens.