Gas discharge flash lamp with piezoelectric trigger generator

Details Gas discharge flash lamp with piezoelectric trigger generator Gas discharge flash lamp with piezoelectric trigger generator

1977-02-04

1978-04-04

Smith, Alfred E.

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

315209PZ, 354135, 310319, H05B 4132, G03B 1503

Patent

active

040829855

ABSTRACT:
An electronic flash unit for igniting a gas discharge flash lamp by means of a piezoelectric element. The unit input terminals are interconnected by a series circuit comprising a rectifier and an undercritically damped parallel LC circuit. The lamp starting electrode is coupled to one main electrode via the inductor (L) and exclusive of the rectifier. The unit produces a lamp ignition signal consisting of a pulse train of alternating polarity which provides more reliable ignition of the flash lamp.

REFERENCES:
patent: 3712197 (1973-01-01), Wagner
patent: 3782258 (1974-01-01), Boekkooi et al.
patent: 4025817 (1977-05-01), Wollschleger

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