Study and optimization of mercury free fluorescent signs
Résumé
Short pulse excitation and analysis of low pressure Ne/Xe plasma in cold hollow electrode fluorescent tube is reported. A very significant enhancement of light output, lamp efficiency and lifetime has been achieved by optimizing the pulse duration and the gas mixture pressure. The time resolved spectroscopy of radiating species - xenon atoms, xenon ions, neon atoms and (XeNe) molecules – in combination with the voltage and current measurement provide a comprehensive description of the glow ignition and development, and of the afterglow characteristics.