| http://www.w3.org/ns/prov#value | - A deviation amount L, i.e., the change in the size of the discharge arc curvature, and a surface temperature of the lamp tube 1t at a location Ts shown in FIG. 2A are experimentally measured by supplying a current having a waveform such as shown in FIG. 1 to a discharge lamp while varying a difference ?? (a peak-to-peak value) of the sine wave component of acoustic resonance frequency f2.
|
