| 摘要 |
An optical scanner (1) includes a movable section (111), a frame body section (13), a first shaft section (12a, 12b) configured to connect the movable section (111) and the frame body section (13), a fixed section (15), and a second shaft section (14a, 14b) configured to connect the frame body section (13) and the fixed section (15) ; a distortion detecting element (51, 52) arranged at an end on the frame body section side of the second shaft section (14a, 14b) or in any one of the movable section (111), the frame body section (13), and the first shaft section (12a, 12b), and configured to detect deformation of the second shaft section (14a, 14b) ; a first signal processing section (71) configured to receive a detection signal of the distortion detecting element (51, 52) and output a signal based on bending deformation of the second shaft section (14a, 14b), and a second signal processing section (72) configured to receive a detection signal of the distortion detecting element (51, 52) and output a signal based on torsional deformation of the second shaft section (14a, 14b). |
