| 发明名称 | Lens apparatus and image pickup system | ||
| 摘要 | A lens apparatus detachable from an image pickup apparatus includes a focus lens, a driver configured to drive the focus lens, a first position detector configured to detect a position of the focus lens, and a controller configured to correct the position of the focus lens detected by the first position detector to a position of the focus lens in a predetermined optical characteristic, to transmit a corrected position of the focus lens to the image pickup apparatus, to correct driving information of the focus lens in the predetermined characteristic received from the image pickup apparatus to driving information of the focus lens in a current optical characteristic, and to instruct the driver to drive the focus lens in accordance with the position of the focus lens detected by the first position detector and corrected driving information of the focus lens. | ||
| 申请公布号 | US8781313(B2) | 申请公布日期 | 2014.07.15 |
| 申请号 | US201313892442 | 申请日期 | 2013.05.13 |
| 申请人 | Canon Kabushiki Kaisha | 发明人 | Uchiyama Minoru |
| 分类号 | G03B13/36 | 主分类号 | G03B13/36 |
| 代理机构 | Rossi, Kimms & McDowell LLP | 代理人 | Rossi, Kimms & McDowell LLP |
| 主权项 | 1. A lens apparatus detachable from an image pickup apparatus, the lens apparatus comprising: a focus lens configured to provide focusing; a driver configured to drive the focus lens; a first position detector configured to detect a position of the focus lens; and a controller configured to correct the position of the focus lens detected by the first position detector to a position of the focus lens in a predetermined optical characteristic, to transmit a corrected position of the focus lens to the image pickup apparatus, to correct driving information of the focus lens in the predetermined characteristic received from the image pickup apparatus to driving information of the focus lens in a current optical characteristic, and to instruct the driver to drive the focus lens in accordance with the position of the focus lens detected by the first position detector and corrected driving information of the focus lens. | ||
| 地址 | JP | ||