| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharge lamp device capable of electrically controlling an arc jump or arc flicker of a discharge lamp. SOLUTION: The discharge lamp device is characterized by being equipped with a discharge lamp 90, a power supply circuit 30, a driving circuit 40 driving in alternating current the discharge lamp 90 based on power supplied from the power supply circuit 30, detecting circuits (a lamp voltage detecting circuit 70 and a lamp current detecting circuit 80) to detect arc errors between electrodes of the discharge lamp 90, and a control circuit 60 to control the driving circuit 40 based on a detection result detected by the detecting circuits. COPYRIGHT: (C)2004,JPO |
