| 摘要 |
<p>In an optical deflector including a mirror (1, 1'), a rib (1a, 1'a) formed at an outer circumference of the mirror (1, 1'), a support frame (2, 2') surrounding the mirror (1, 1'), at least one torsion bar (3-1, 3-2) arranged along an axis (X) of the mirror (1, 1') and coupled between the support frame (2, 2') and the mirror (1, 1'), and a pair of actuators (4-1, 4-2) arranged between the support frame (2) and the torsion bar (3-1, 3-2), a recess (1b, 1'b, 1c, 1'c, 1d, 1'd) opposing the torsion bar (3-1, 3-2) is formed within the rib (1a, 1'a).</p> |
