Invention Grant
- Patent Title: Apparatus, focus detection apparatus, and image pickup system
- Patent Title (中): 装置，焦点检测装置和图像拾取系统
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Application No.: US12966364Application Date: 2010-12-13
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Publication No.: US08803054B2Publication Date: 2014-08-12
- Inventor: Kazuhiro Saito , Tomohisa Kinugasa
- Applicant: Kazuhiro Saito , Tomohisa Kinugasa
- 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: JP2009-285778 20091216
- Main IPC: G02B27/64
- IPC: G02B27/64
Abstract:
In a photoelectric conversion apparatus, an error can occur due to a voltage drop through a MOS transistor. In the photoelectric conversion apparatus, to reduce the error, a circuit block disposed between a unit pixel and an output line includes a differential amplifier circuit and a switch that is disposed in a feedback path of the differential amplifier circuit.
Public/Granted literature
- US20110139967A1 APPARATUS, FOCUS DETECTION APPARATUS, AND IMAGE PICKUP SYSTEM Public/Granted day:2011-06-16
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