| 摘要 |
In at least one embodiment of the disclosure, a discharge lamp lighting device comprises a discharge lamp driving section and a control unit. The control unit alternately performs a first DC driving processing and a first AC driving processing in a first section of the driving current. The control unit alternately performs a second DC driving processing and a second AC driving processing in a second section of the driving current different from the first section. The control unit temporally changes a length of at least one of: (i) a period for which the first DC driving processing is performed, and (ii) a period for which the second DC driving processing is performed.
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