Current supply means for a laser flash lamp

Details Current supply means for a laser flash lamp Current supply means for a laser flash lamp

1994-04-15

1996-03-05

Pascal, Robert J.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Flashers

315136, 315209R, H05B 3700

Patent

active

054970512

ABSTRACT:
Current supply means for a laser flash lamp contain a fast switch and control means which modulate the amplitude of each individual pulse with a presettable modulating frequency and depth of modulation. This permits higher peak envelope powers to be obtained at an unchanged mean power of the individual pulses so that the necessary threshold values can be better exceeded during materials processing. The amplitude modulation of the individual pulses also prevents undesirable shielding plasma from forming above the processing place.

REFERENCES:
patent: 3869641 (1975-03-01), Goldberg
patent: 4140932 (1979-02-01), Wohlert
patent: 4453140 (1984-06-01), Gindrup
patent: 5311100 (1994-05-01), Brain
patent: 5321591 (1994-06-01), Cimock et al.
"Flashlamp Circuit Generates Stable Quasi-CW Pulses," Laser Focus World, vol. 18, No. 10 (Oct. 1982).
V. Lupei et al., "An Automatically Controlled Nd:YAG Laser with Variable Pulse Width," Optics and Laser Technology, vol. 23, No. 3 (Jun. 1993).

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