发明名称 |
FOCUS DETECTION APPARATUS, IMAGE PICKUP DEVICE, AND ELECTRONIC CAMERA |
摘要 |
A focus detection apparatus includes first-type and second-type pixels and an image-formation-state detector. Each first-type pixel includes a photoelectric converter that receives light from an image-pickup optical system and first and second optical members arranged on an optical path from the optical system to the photoelectric converter and having different refractive indices, and outputs a first charge signal corresponding to an amount of light received by the photoelectric converter. Each second-type pixel includes the photoelectric converter and the first and second optical members arranged such that a positional relationship relative to the photoelectric converter differs from that in each first-type pixel, and outputs a second charge signal corresponding to an amount of light received by the photoelectric converter. The detector detects an image formation state of the image-pickup optical system on the basis of the first and second charge signals.
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申请公布号 |
US2010302432(A1) |
申请公布日期 |
2010.12.02 |
申请号 |
US20100773269 |
申请日期 |
2010.05.04 |
申请人 |
SONY CORPORATION |
发明人 |
KOMURO YOSHIAKI |
分类号 |
H04N5/232;G02B7/34;G03B13/36;H04N5/225;H04N5/335;H04N5/369 |
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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