HIGH-PRESSURE DISCHARGE LAMP LIGHTING DEVICE AND LUMINAIRE

PROBLEM TO BE SOLVED: To prevent continuation of a discharge state in an outer tube that is expected to occur at the end of life of a high-pressure discharge lamp. SOLUTION: A discharge lamp lighting device comprises a ballast 3 including at least a current-limiting element, and a high-pressure pulse generation circuit 4 for generating a high-pressure pulse voltage, for lighting up a high-pressure discharge lamp 2 having a near-vacuum outer tube. The discharge lamp lighting device further comprises: a lighting discrimination means 8 for discriminating lighting/non-lighting of the discharge lamp 2; a timer circuit 9 for setting a specific period of time; and a pulse stop control means 10 for stopping generation of the pulse voltage. When the lighting discrimination means 8 has discriminated lighting after discrimination of non-lighting, generation of the high-pressure pulse voltage is stopped for a period set by the timer circuit 9. COPYRIGHT: (C)2005,JPO&NCIPI