OPTICAL DEVICE ACTUATOR AND LENS BARREL PROVIDED WITH SAME

An optical device actuator is provided with a movable frame (33) including a focusing lens (L11), a main shaft guide (40), a piezoelectric element (36a), a weight (36b), a fixed frame (30), a guide retaining frame (35), and a spring (36c). The piezoelectric element (36a) imparts vibration to a first end (40a) side of the main shaft guide (40). The fixed frame (30) supports the piezoelectric element (36a) and the weight (36b) disposed on the first end (40a) side of the main shaft guide (40). The guide retaining frame (35) supports a second end (40b) side of the main shaft guide (40) on the opposite side thereof from the first end (40a) side in a fixed state. The spring (36c) is provided on the first end (40a) side of the main shaft guide (40), and presses the piezoelectric element (36a) along the axial direction against to the first end (40a) of the main shaft guide (40) via the weight (36b). 光学设备用致动器具备包含聚焦透镜(L11)的可动框(33)、主轴导杆(40)、压电元件(36a)、配重(36b)、固定框(30)、导杆保持框(35)、弹簧(36c)。压电元件(36a)对主轴导杆(40)的第1端(40a)侧赋予振动。固定框