发明名称 |
Focus detecting device |
摘要 |
Improved accuracy is contrived in a focus detecting device for finding the amount of correlation between signals corresponding to images received on first and second sensor arrays. A picture element signal of each sensor is duplicated and taken out as a signal of a double Information amount, thereby enabling correlation calculation to be effected accurately.
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申请公布号 |
US5381206(A) |
申请公布日期 |
1995.01.10 |
申请号 |
US19920914580 |
申请日期 |
1992.07.20 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
AKASHI, AKIRA;MATSUSHIMA, HIROSHI |
分类号 |
G02B7/34;(IPC1-7):G03B13/36 |
主分类号 |
G02B7/34 |
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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