| 摘要 |
A light deflector (10) includes a fixing portion (19, 21) and a movable portion (37). The movable portion includes a mirror portion (11) for deflecting light by swinging about a predetermined swing axis (AX), a torsion bar (15) fixedly supported on the fixing portion and having an axis serving as the swing axis, and a supporting body (31) configured to support the mirror portion and fixed to the torsion bar. The supporting body includes a hole portion (53) through which the axis passes. A mass body (51) for adjusting a resonant frequency of the movable portion is arranged in the hole portion. |
