Projector pressure discharge lamp lighting device using a high-pressure discharge lamp of the high pressure discharge lamp lighting device apparatus using the high pressure discharge lamp apparatus, and a high pressure discharge lamp lighting method

The present invention provides a high pressure discharge lamp capable of suppressing an excessive decrease in the lamp voltage of the high pressure discharge lamp lighting device and use of high pressure in the high pressure discharge lamp lighting device of discharge lamp devices. Supplied to the high pressure discharge lamp (4) the frequency of the alternating current in the first value, the second value is greater than a first value and less than or equal to switch between the third value of the first value. In the alternating current frequency switching process, control is performed in such a manner that: at predetermined time intervals for the A-repeat period of the alternating current supplied to the third value, while, during a period of the predetermined time interval are repeated alternately C period and B period, the value of the first alternating current is supplied in the B period, the alternating current supplied to the second value in the C period, the a period length is set larger than the length of the B period, and is set to not less than 5.5 and less than equal to a predetermined cycle period of 50 cycles.