| 摘要 |
A discharge lamp lighting device is realized, which enables scale and cost reductions thereof, and is capable of reducing a flash at a starting time of the discharge lamp, suppressing a feeling of wrongness at a time of raising a luminous flux, and easily suppressing variations among a plurality of the discharge lamps. The discharge lamp lighting device includes: a lighting circuit unit that receives a direct current voltage, and converts the direct current voltage into an output required by a discharge lamp; and a control unit that receives detection values of a discharge lamp voltage and a discharge lamp current, and controls the lighting circuit unit to achieve a predetermined target power value, in which, after the discharge lamp is started, the control unit controls the predetermined target power value to be reduced from an output power value larger than a rated power value to the rated power value for several seconds to several ten seconds, wherein the control unit sets a target power value after the discharge lamp is started at a first output power value larger than the rated power value, and increases the target power value toward a second output power value as a maximum output power value for a first predetermined time after the discharge lamp is started. |
