| 发明名称 | Driving mechanism, lens barrel and camera | ||
| 摘要 | A driving mechanism includes a first piezoelectric element and a first driving member that is driven by the first piezoelectric element and that vibrates in a first direction. The first driving member includes a second piezoelectric element and a second driving member that is driven by the second piezoelectric element and that vibrates in a second direction different from the first direction. A difference between the vibration resonance frequency of the first driving member and the vibration resonance frequency of the second driving member is equal to or less than the half-width at a half maximum of a function representing an amplitude frequency characteristic in the vibration of the first driving member. | ||
| 申请公布号 | US8797661(B2) | 申请公布日期 | 2014.08.05 |
| 申请号 | US201113248694 | 申请日期 | 2011.09.29 |
| 申请人 | Nikon Corporation | 发明人 | Kuwano Kunihiro;Nishimoto Hitoshi |
| 分类号 | G02B7/02 | 主分类号 | G02B7/02 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A driving mechanism comprising: a first piezoelectric element; and a first driving member that vibrates in a first direction due to the piezoelectric element, wherein the first driving member comprises a base member that vibrates in the first direction by the driving of the first piezoelectric element, a second piezoelectric element that is provided at the base member, and a second driving member that vibrates in a second direction due to the piezoelectric element, and wherein a difference between vibration resonance frequency of the first driving member and a vibration resonance frequency of the second driving member is equal to or less than a predetermined value, the predetermined value being a half of difference value between two frequencies with each at a half maximum amplitude of a function which represents an amplitude frequency characteristic of the first driving member. | ||
| 地址 | Tokyo JP | ||