High-voltage discharge lamp lighting device and lighting equipment

[Object] To provide a lighting device capable of detecting and correcting lowering of a starting high voltage due to extension of a wiring part 82 up to a high-voltage discharge lamp 8 easily, inexpensively and accurately. [Means for Settlement] A starting pulse generation circuit 7 includes a transformer primary winding circuit formed of serial connection of a capacitor C1, a primary winding N1 of a transistor T1 and a switching element Q7, a transformer secondary winding circuit for raising the voltage generated in the primary winding N1 of the transformer T1 and applying a high-voltage pulse to a high-voltage discharge lamp 8 and a transformer winding N3 for detecting the voltage level of the high-voltage pulse generated in the transformer T1. A pulse width detection circuit 16 for detecting a pulse width correlated with a peak value of the starting pulse voltage generated by the starting pulse generation circuit 7 is connected to the transformer winding N3, and the starting pulse voltage is adjusted to a desired value by indirectly detecting the peak value of the starting pulse voltage via the pulse width detection circuit 16 and controlling the starting pulse generation circuit 7 by use of a control circuit 9.