| 发明名称 | Actuator, optical scanner, and image forming apparatus | ||
| 摘要 | An actuator includes: a movable portion that can oscillate around an oscillation axis; a connection portion that extends from the movable portion and is torsionally deformed in accordance with oscillation of the movable portion; and a support portion that supports the connection portion. The movable portion forms a cross shape in a plan view from a thickness direction of the movable portion. | ||
| 申请公布号 | US9293975(B2) | 申请公布日期 | 2016.03.22 |
| 申请号 | US201213411934 | 申请日期 | 2012.03.05 |
| 申请人 | Seiko Epson Corporation | 发明人 | Hino Makiko;Mizoguchi Yasushi |
| 分类号 | G02B26/08;H02K33/16 | 主分类号 | G02B26/08 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. An actuator comprising: a movable portion that includes a light reflecting portion having light reflectivity and that oscillates around an oscillation axis; a connection portion that extends from the movable portion and is torsionally deformed in accordance with oscillation of the movable portion; and a support portion that supports the connection portion, the movable portion and the light reflecting portion have two first protrusions that protrude to both sides of the movable portion in a direction of the oscillation axis, and have two second protrusions that protrude to both sides of the movable portion in a direction intersecting the oscillation axis in a plan view, wherein the length of the first protrusion in the direction of the oscillation axis is longer than the length of the second protrusion in the direction intersecting the oscillation axis. | ||
| 地址 | JP | ||