发明名称 |
FOCUS DETECTION DEVICE AND IMAGE-CAPTURING APPARATUS |
摘要 |
A focus detection device includes: a plurality of first pixels having first color filters, via which a pair of first signals, to be used for split-pupil phase detection, are output; a plurality of second pixels having second color filters, via which a pair of second signals, to be used for the split-pupil phase detection, are output; a phase difference detection unit that detects a phase difference manifested by the first signals or a phase difference manifested by the second signals; and a defocus amount calculation unit that calculates a defocus amount by using a first conversion coefficient corresponding to the first color when the phase difference detection unit has detected the phase difference manifested by the first signals and by using a second conversion coefficient corresponding to the second color when the phase difference detection unit has detected the phase difference manifested by the second signals. |
申请公布号 |
US2015234148(A1) |
申请公布日期 |
2015.08.20 |
申请号 |
US201314422609 |
申请日期 |
2013.08.21 |
申请人 |
NIKON CORPORATION |
发明人 |
Kusaka Yosuke |
分类号 |
G02B7/34;H04N9/04;G03B13/36;H04N5/232 |
主分类号 |
G02B7/34 |
代理机构 |
|
代理人 |
|
主权项 |
1. A focus detection device, comprising:
a plurality of first pixels having first color filters corresponding to a first color disposed thereat, via which a pair of first signals, to be used for split-pupil phase detection, are output; a plurality of second pixels having second color filters corresponding to a second color disposed thereat, via which a pair of second signals, to be used for the split-pupil phase detection, are output; a phase difference detection unit that detects a phase difference manifested by the first signals or a phase difference manifested by the second signals; and a defocus amount calculation unit that calculates a defocus amount by using a first conversion coefficient corresponding to the first color when the phase difference detection unit has detected the phase difference manifested by the first signals and by using a second conversion coefficient corresponding to the second color when the phase difference detection unit has detected the phase difference manifested by the second signals. |
地址 |
Tokyo JP |