| 摘要 |
Provided is an electric discharge lamp lighting device (10) including a control section (40) which performs first control operation for controlling at least the current value, frequency, duty ratio or waveform of a driving current (I) for driving an electric discharge lamp (90). The electric discharge lamp lighting device also includes a signal receiving section (50) for receiving a drive control signal (S) which can control at least the current value, frequency, duty ratio or waveform of the driving current (I) in mode different from the first control operation. The control section (40) performs second control operation for controlling at least the current value, frequency, duty ratio or waveform of the driving current (I) based on the drive control signal (S), in the case where the signal receiving section (50) has received the drive control signal (S).
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