A micromirror device comprising: a mirror part that has a reflecting surface that reflects light; a first actuator that includes a pair of semi-annular actuator parts (14A, 14B), each including a piezoelectric element (41,42), and that is disposed such that the pair of semi-annular actuator parts (14A, 14B) surrounds the mirror part; a connecting part that connects the mirror part and the first actuator such that the mirror part is rotatable around a first axis; a fixing part that is disposed at an outer periphery of the first actuator; and a second actuator that is disposed between the first actuator and the fixing part and includes a pair of meandering type actuator parts (16A, 16B), each including one or more rectangular plate-like parts that include a piezoelectric element (43,44,45,46), wherein each of the pair of meandering type actuator parts (16A, 16B) is disposed such that a longitudinal direction of the rectangular plate-like part is a direction along the first axis, one end of each of the pair of meandering type actuator parts (16A, 16B) is directly connected to an outer periphery of each of the pair of semi-annular actuator parts (14A, 14B), and another end of each of the pair of meandering type actuator parts (16A, 16B) is connected to the fixing part, each piezoelectric element (41,42,43,44,45,46) has a structure in which a lower electrode, a piezoelectric film, and an upper electrode are layered, and the first actuator applies a rotational torque around the first axis to the mirror part, and the second actuator applies a rotational torque around a second axis intersecting with the first axis to the first actuator, so as to two-dimensionally rotationally drive the mirror part around the first axis and the second axis, characterised in that when a resonance frequency in a lowest order mode among resonance modes in which the mirror part reciprocates and rotates around the first axis and the mirror part and the first actuator reciprocate and rotate in opposite phases to each other is Fo, and a resonance frequency in a lowest order mode among resonance modes in which the mirror part reciprocates and rotates around the first axis and the mirror part and the first actuator reciprocate and rotate in the same phase as each other is Fi, F 1 = Fo + Fi, and F 2 = Fo − Fi, where among the resonance frequencies of each of the plurality of resonance modes, a resonance frequency closest to F1 is less than F1-100 Hz or greater than F1+450 Hz, and among the resonance frequencies of each of the plurality of resonance modes, a resonance frequency closest to F2 is less than F2-100 Hz or greater than F2+450 Hz. a mirror part that has a reflecting surface that reflects light; a first actuator that includes a pair of semi-annular actuator parts (14A, 14B), each including a piezoelectric element (41,42), and that is disposed such that the pair of semi-annular actuator parts (14A, 14B) surrounds the mirror part; a connecting part that connects the mirror part and the first actuator such that the mirror part is rotatable around a first axis; a fixing part that is disposed at an outer periphery of the first actuator; and a second actuator that is disposed between the first actuator and the fixing part and includes a pair of meandering type actuator parts (16A, 16B), each including one or more rectangular plate-like parts that include a piezoelectric element (43,44,45,46), wherein each of the pair of meandering type actuator parts (16A, 16B) is disposed such that a longitudinal direction of the rectangular plate-like part is a direction along the first axis, one end of each of the pair of meandering type actuator parts (16A, 16B) is directly connected to an outer periphery of each of the pair of semi-annular actuator parts (14A, 14B), and another end of each of the pair of meandering type actuator parts (16A, 16B) is connected to the fixing part, each piezoelectric element (41,42,43,44,45,46) has a structure in which a lower electrode, a piezoelectric film, and an upper electrode are layered, and the first actuator applies a rotational torque around the first axis to the mirror part, and the second actuator applies a rotational torque around a second axis intersecting with the first axis to the first actuator, so as to two-dimensionally rotationally drive the mirror part around the first axis and the second axis, characterised in that when a resonance frequency in a lowest order mode among resonance modes in which the mirror part reciprocates and rotates around the first axis and the mirror part and the first actuator reciprocate and rotate in opposite phases to each other is Fo, and a resonance frequency in a lowest order mode among resonance modes in which the mirror part reciprocates and rotates around the first axis and the mirror part and the first actuator reciprocate and rotate in the same phase as each other is Fi, F 1 = Fo + Fi, and F 2 = Fo − Fi, where among the resonance frequencies of each of the plurality of resonance modes, a resonance frequency closest to F1 is less than F1-100 Hz or greater than F1+450 Hz, and among the resonance frequencies of each of the plurality of resonance modes, a resonance frequency closest to F2 is less than F2-100 Hz or greater than F2+450 Hz.