Abstract
The physical processes influencing lamp stability and efficiency are studied in this paper. Experimental evidence demonstrates that undesirable lamp output energy variation is believed to be caused by the random nature of the triggering process. The random effect can be decreased by the induced back emf of the transient arc self-inductance under the preferred trigger polarity and the simmer mode operation of the lamp. Simmering a lamp results in a uniform current and plasma density, hence higher optical efficiency is obtained. The best simmer action is provided by the full simmer mode; it allows the arc to grow uniformly from the axis of the lamp.
© 1986 Optical Society of America
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