发明名称 |
Image pickup apparatus with optical and electronic zoom |
摘要 |
An image pickup apparatus having optical and electronic zooms. A manually operated zoom element allows for movement of the optical zoom and an electrically operated zoom switch permits electric driving of the optical and electronic zooms. A control unit controls the apparatus so that the magnification is varied while the electronic zoom is kept constant, if the focal length of the optical zoom is varied by the manually operated zoom element in the state that the optical zoom is at its telephoto end and the electronic zoom is being operated
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申请公布号 |
US6489993(B1) |
申请公布日期 |
2002.12.03 |
申请号 |
US19970806317 |
申请日期 |
1997.02.26 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SATO HIDEKAGE;OKINO TADASHI;WATANABE TAKASHI |
分类号 |
H04N5/232;H04N5/262;(IPC1-7):H04N5/225 |
主分类号 |
H04N5/232 |
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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