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Image sensor and electronic camera

專利號
US11039093B2
公開日期
2021-06-15
申請人
NIKON CORPORATION（JP Tokyo）
發(fā)明人
Atsushi Komai
IPC分類
H04N5/347; H04N5/374
技術(shù)領(lǐng)域
pixel,signal,pixels,vertical,unit,vl1,in,vl2,first,electric
地域： Tokyo

摘要

An image sensor, includes: a plurality of pixels arranged along a first direction, each of which includes a photoelectric conversion unit that generates an electric charge through photoelectric conversion of light, and outputs a signal generated based upon the electric charge generated in the photoelectric conversion unit; a first signal line to which signals from one or more pixels among the plurality of pixels are output; a second signal line to which a signal from another pixel among the plurality of pixels is output; and an arithmetic unit that executes an arithmetic operation with a signal generated by combining the signals from the one or more pixels output to the first signal line and the signal output to the second signal line.

說明書

FIG. 2 is a circuit diagram illustrating the pixel structure adopted in the image sensor 3 according to the first embodiment. A pixel 10 includes a photoelectric conversion unit 11, a transfer unit 12, a reset unit 13, a floating diffusion (FD) 14, an amplifier unit 15, a first selection unit 16 and a second selection unit 17. The photoelectric conversion unit 11, constituted with a photodiode PD, has a function of converting light having entered therein to an electric charge and accumulating the electric charge resulting from the photoelectric conversion.

The transfer unit 12, which is constituted with a transistor M1 controlled with a drive signal ?TX, transfers the electric charge resulting from photoelectric conversion at the photoelectric conversion unit 11 to the FD 14. Namely, the transfer unit 12 forms an electric charge transfer path between the photoelectric conversion unit 11 and the FD 14. The transistor M1 is a transfer transistor. The electric charge transferred to the FD 14 is accumulated (held) in a capacitor C at the FD 14. The FD 14 also functions as an accumulating unit 14 that accumulates an electric charge.

權(quán)利要求

1
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