Electric lamp and discharge devices: systems – Plural power supplies – Discharge device and/or rectifier in one of the supply circuits
Patent
1979-09-27
1981-02-17
La Roche, Eugene R.
Electric lamp and discharge devices: systems
Plural power supplies
Discharge device and/or rectifier in one of the supply circuits
315337, 331 945PE, H05B 4130
Patent
active
042517516
ABSTRACT:
In an ignition circuit for a split section gas discharge laser having a common anode, a positive sustaining voltage is applied to the common anode while independent negative starting potentials are applied through high resistances to cathodes at either end of the laser tube which are grounded through diodes to prevent shorting of the ignition voltage source while providing a return path for the sustaining voltage source. The cathodes are immediately brought to ground potential upon ignition so that gas discharge in each of the two sections may be independently ignited while mirrors at either end of the laser tube are maintained at or near ground potential during operation of the laser after ignition.
REFERENCES:
patent: 3317853 (1967-05-01), George
patent: 3460053 (1969-08-01), Leonard
patent: 3611183 (1971-10-01), Fendley
patent: 4156208 (1979-05-01), Sasnett
Hughes Aircraft Company
La Roche Eugene R.
MacAllister William H.
Wallace Robert M.
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