| 摘要 |
A mirror driving device can include: a mirror part having a reflection surface configured to reflect light; mirror support parts formed at portions of the mirror part diagonal to each other; and a first actuator and a second actuator placed so as to surround the mirror part, wherein the first actuator and the second actuator each have a structure in which a plurality of first piezoelectric cantilevers with a longitudinal direction oriented to a direction of a first axis and a plurality of second piezoelectric cantilevers with a longitudinal direction oriented to a second axis are coupled together so as to be folded, and each of the first actuator and the second actuator has one end connected to the mirror part via a relevant one of the mirror support parts and another end connected to a fixing part near the mirror support part to which the one end is coupled.
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