Abstract
The characteristics of xenon fluorescent lamp with two pairs of anode and cathode in pulsed discharge are demonstrated. By increasing the number of electrodes from one pair to two pairs, luminance is improved by 13 % and achieves 9500 cd/m2 but estimated efficacy at a positive column is decreased from 68.0 lm/W to 45.6 lm/W. The narrow pulse width is preferred for higher luminance because a higher current density can be attained. It is also shown that there is the critical value of the energy consumed from the time when the current is turned on to the time when the current value reaches maximum and that when the energy excess this limit the discharge state changes from diffused to contracted one.
