| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device of a discharge lamp which can detect abnormal switching off of a discharge lamp (HID lamp) and re-lighting the lamp immediately. SOLUTION: A lighting device is provided with a voltage-detecting part 11 which is connected with a pair of electrodes 1a, 1b of a discharge lamp and detects whether the voltage between these electrodes 1a, 1b has reached a predetermined voltage, and a high voltage generation part 12 which re-lights the discharge lamp 1 by applying voltage of a predetermined level, when the voltage detecting part 11 detects that the predetermined voltage has been reached. COPYRIGHT: (C)2007,JPO&INPIT |
