Invention Grant
US09307141B2 Focus detection device, photoelectric conversion system, method of driving focus detection device
有权
焦点检测装置，光电转换系统，焦点检测装置的驱动方法
- Patent Title: Focus detection device, photoelectric conversion system, method of driving focus detection device
- Patent Title (中): 焦点检测装置，光电转换系统，焦点检测装置的驱动方法
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Application No.: US14486010Application Date: 2014-09-15
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Publication No.: US09307141B2Publication Date: 2016-04-05
- Inventor: Yukihiro Kuroda
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2013-191569 20130917
- Main IPC: H04N5/232
- IPC: H04N5/232
Abstract:
A focus detection device, a photoelectric conversion system, and a method of driving the focus detection device are provided in which a length of an electric charge accumulation period is determined based on a signal level based on an electric charge accumulated by a photoelectric converter in a sub-accumulation period.
Public/Granted literature
- US20150077620A1 FOCUS DETECTION DEVICE, PHOTOELECTRIC CONVERSION SYSTEM, METHOD OF DRIVING FOCUS DETECTION DEVICE Public/Granted day:2015-03-19
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