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PROBLEM TO BE SOLVED: To provide a lighting device capable of performing fine dimming control without stopping other processing in spite of a motion clock.
SOLUTION: A dimming signal generation section 74 calculates a period of a PWM signal on the basis of a lighting condition of a lamp 12 detected by a status detection section 73 and the designated motion clock. The PWM signal with the period calculated by the status detection section 73 is generated by the dimming signal generation section 74 capable of generating the PWM signal corresponding to the period of non-integer times of the motion clock. The period of the PWM signal can be continuously and finely changed without stopping the other processing in spite of the motion clock, and fine dimming control can be carried out.
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