| 发明名称 | Foreign matter removal unit and optical apparatus having the same | ||
| 摘要 | A foreign matter removal unit includes a rectangular optical member disposed on an optical path, in which is set an optically effective region through which a light flux passes, a piezoelectric device provided to a side of the optical member on the outer side of the optically effective region, and a vibration suppression member provided to a side of the optical member where the piezoelectric device is not provided. The vibration suppression member is provided to the optical member such that an edge face of the side of the optical member does not protrude out from an edge face of the vibration suppression member. | ||
| 申请公布号 | US8888301(B2) | 申请公布日期 | 2014.11.18 |
| 申请号 | US201213367204 | 申请日期 | 2012.02.06 |
| 申请人 | Canon Kabushiki Kaisha | 发明人 | Urakami Toshifumi |
| 分类号 | G02B23/16;H04N5/217;G02B27/00;B08B7/02;H01L41/00 | 主分类号 | G02B23/16 |
| 代理机构 | Canon USA, Inc. IP Division | 代理人 | Canon USA, Inc. IP Division |
| 主权项 | 1. A foreign substance removal unit comprising: a rectangular optical member disposed on an optical path, in which is set an optically effective region through which a light flux passes; a piezoelectric device applied to a side of the optical member on the outer side of the optically effective region; a vibration suppression member applied to a side of the optical member where the piezoelectric device is not applied; and a retaining member arranged to retain the optical member, wherein the vibration suppression member is applied to the optical member such that an edge face of the side of the vibration suppression member protrudes outwardly from the edge face of the optical member, and wherein the retaining member retains the optical member such that the retaining member does not contact the edge face of the vibration suppression member that is protruding outwardly from the edge face of the optical member. | ||
| 地址 | Tokyo JP | ||