| 摘要 |
PROBLEM TO BE SOLVED: To provide a mirror control device capable of suppressing the occurence of drift of a mirror. SOLUTION: The mirror control device is provided with a rotatably supported mirror 230, electrodes 340a-340d disposed apart from the mirror 230, and a driving voltage application means 401 for generating a driving voltage of the mirror 230 in accordance with a desired slant angle of the mirror 230 by generating alternative voltages to be applied to each of the electrodes 340a-340d so that the average direct current component becomes substantially zero for each of the electrodes 340a-340d. The driving voltage application means 401 generates the alternative current voltage as a driving voltage having an amplitude or a duty ratio in accordance with the desired slant angle of the mirror 230. COPYRIGHT: (C)2008,JPO&INPIT
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