High pressure discharge lamp with incorporated starter

摘要

In a high pressure discharge lamp device provided with an inductive stabilizer and a starting circuit consisting of a serial circuit of a resistor and a bimetal switch, a pulse waveform conversion circuit is arranged therein to reduce the pulse peak of the starting voltage and also broaden the pulse width of the starting voltage. The pulse waveform conversion circuit comprises a serial circuit of a resistor and a switching element, such as micro-gap element, which operates at a voltage lower than the starting voltage of the discharge lamp but higher than the secondary load-free voltage of the stabilizer.