METHOD FOR PUMPING GLOW LAMP HAVING NEGATIVE-POLARITY GASES IN WORKING MIXTURE Russian patent published in 1997 - IPC

FIELD: lighting engineering. SUBSTANCE: voltage is applied to lamp electrodes and current is passed through working mixture. Voltage is supplied in unipolar pulses of length t chosen from condition 10^-5s ≅ t ≅ 10^-2 and amplitude exceeding firing voltage and sufficient to pass unipolar current through lamp, average density j of current being for each voltage pulse within the range of 10^-2A/cm²s ≅ j ≅ 10^-1A/cm² within time t₁ found from expression 0,25 ≅ t₁≅ 0,7t. EFFECT: improved mean radiation power and efficiency of lamp. 2 dwg