发明名称 |
AUTOMATIC FOCUSING APPARATUS AND LENS APPARATUS INCLUDING THE AUTOMATIC FOCUSING APPARATUS |
摘要 |
<p>An automatic focusing apparatus includes: a focus lens unit; a focus driver; a first focus detector that detects an in-focus state based on a phase difference; a second focus detector that detects an in-focus state using a signal from an image pickup element; a focus controller that controls the focus driver to perform focusing based on a first focus detection result and a second focus detection result; a movement detector that detects a movement of an object with components in a direction perpendicular to an optical axis based on an image signal obtained from the first focus detector; and a re-execution determination unit that determines whether to control the focus driver to re-execute focusing based on the first focus detection result and the second focus detection result that are newly detected after the execution of focusing and based on a movement detection result detected by the movement detector.</p> |
申请公布号 |
WO2012081647(A1) |
申请公布日期 |
2012.06.21 |
申请号 |
WO2011JP78979 |
申请日期 |
2011.12.08 |
申请人 |
CANON KABUSHIKI KAISHA;SASAKI, RYOHEI |
发明人 |
SASAKI, RYOHEI |
分类号 |
G02B7/28;G02B7/30;G02B7/34;G02B7/36;G03B13/36;H04N5/232 |
主分类号 |
G02B7/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|