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Study and optimization of mercury free fluorescent signs

S. POINT1, E. ROBERT1,* , S. DOZIAS1, C. CACHONCINLLE1, R. VILADROSA1, J. M. POUVESLE1

Affiliation

  1. GREMI, CNRS-Polytech’Orléans, 14 rue d’Issoudun, BP 6744, 45067 Orléans cedex 2, France

Abstract

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..

Keywords

Fluorescent, Mercury free, Ultraviolet, Xenon plasma, Pulsed discharge.

Submitted at: March 1, 2008
Accepted at: July 10, 2008

Citation

S. POINT, E. ROBERT, S. DOZIAS, C. CACHONCINLLE, R. VILADROSA, J. M. POUVESLE, Study and optimization of mercury free fluorescent signs, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 8, pp. 1922-1926 (2008)