| 摘要 |
A piezoelectric/electrostrictive device (10A) comprises a pair of mutually opposing thin plate sections (16a,16b), a movable section (20), and a fixation section (22) for supporting the thin plate sections (16a,16b) and the movable section (20); piezoelectric/electrostrictive elements (24a,24b) arranged on a pair of thin plate sections (16a,16b) respectively; and a hole (12) formed by both inner walls of the pair of thin plate sections (16a,16b), an inner wall (20a) of the movable section (20), and an inner wall (22a) of the fixation section (22), wherein a cutout is formed to realize a light weight of the movable section (20). Preferably the cutout is a through-hole (36) having a rectangular cross section over a range from the forward end surface of the movable section (20) to the hole (12). <IMAGE> |
