发明名称 |
Digital camera |
摘要 |
A taking lens is driven in steps each producing movement of the taking lens through a distance greater than a depth of field, and an evaluation value is determined based on a captured image obtained from a CCD imaging device in each position to which the lens is driven. Then, a predetermined interpolation process is performed on a plurality of evaluation values obtained in respective positions to which the lens is driven to derive an in-focus position of the taking lens for bringing an in-focus plane into coincidence with an imaging plane. The taking lens is driven to the in-focus position to achieve an in-focus condition. This allows efficient determination of the in-focus position in a digital camera.
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申请公布号 |
US2001035910(A1) |
申请公布日期 |
2001.11.01 |
申请号 |
US20010817833 |
申请日期 |
2001.03.26 |
申请人 |
YUKAWA KAZUHIKO;YUKAWA KAZUMI |
发明人 |
YUKAWA KAZUHIKO;YUKAWA KAZUMI |
分类号 |
G03B7/095;G02B7/28;G02B7/36;G03B13/36;H04N5/225;H04N5/232;H04N5/235;H04N101/00;(IPC1-7):H04N5/232;G03B7/00;G03B13/00 |
主分类号 |
G03B7/095 |
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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