Energy-saving electronic flash apparatus

Details Energy-saving electronic flash apparatus Energy-saving electronic flash apparatus

1984-07-02

1985-09-10

Hix, L. T.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Plural load device systems

354418, 315241P, G03B 1503, G03B 1505

Patent

active

045402655

ABSTRACT:
An energy-saving electronic flash unit for a rapid sequence of flash exposures includes status indicator apparatus operable for signaling the readiness of the flash unit for the next flash in the sequence as a function of the flash energy expended to produce the previous flash. When the energy retained by a flash-firing capacitor at the termination of the preceding flash exceeds the energy expended in producing that flash, energy-monitoring circuitry causes a status indicator device to signal that the flash unit is sufficiently charged for the next exposure in the sequence.

REFERENCES:
patent: 4249110 (1981-02-01), Dick
patent: 4258991 (1981-03-01), Kuraishi
patent: 4486086 (1984-12-01), Kresock

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