发明名称 |
Camera with focus detecting device for removing vignetting effects |
摘要 |
In a camera and an autofocus controlling method thereof, displacement amounts between intensity distributions of light at corresponding first and second areas of an image sensing device are detected, and a plurality of displacement detection signals are generated. A high contrast area of an object to be photographed is also detected, and a contrast detection signal corresponding to that area is produced. A focus detection signal is produced based on one of the plurality of displacement detection signals corresponding to the contrast detection signal.
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申请公布号 |
US5659813(A) |
申请公布日期 |
1997.08.19 |
申请号 |
US19950479131 |
申请日期 |
1995.06.07 |
申请人 |
NIKON CORPORATION |
发明人 |
KUSAKA, YOSUKE;UTAGAWA, KEN |
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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