发明名称 |
Automatic focus control apparatus. |
摘要 |
<p>An automatic focus control apparatus (1) makes use of the chromatic aberration of a lens (2), such as a zoom lens (2) of a video camera, to detect focus position information on the basis of amplitude values of respective primary colour signals derived by an image pick-up element (3), and hence control the focus of the lens (2).</p> |
申请公布号 |
EP0335656(A1) |
申请公布日期 |
1989.10.04 |
申请号 |
EP19890303042 |
申请日期 |
1989.03.28 |
申请人 |
SONY CORPORATION |
发明人 |
YOSHIDA, MASANOBU C/O PATENTS DIVISION |
分类号 |
G03B13/36;G02B7/28;G02B7/36;H04N5/232 |
主分类号 |
G03B13/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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