JP2017147700A - 撮像装置、撮像システム、撮像装置の駆動方法 - Google Patents
撮像装置、撮像システム、撮像装置の駆動方法 Download PDFInfo
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Abstract
Description
まず、本実施例の撮像装置の構成の概略について、図1を用いて説明する。図1は、撮像装置の構成を模式的に示す回路図である。
本実施例について、実施例1と異なる点を中心に説明する。
本実施例の撮像装置について、実施例1と異なる点を中心に述べる。
本実施例は、上述した各実施例の撮像装置を有する撮像システムに関する。
15 ランプ信号供給回路
16 デジタル信号処理回路
22、26 光電変換部
24、28 転送トランジスタ
30 リセットトランジスタ
32 増幅トランジスタ
34 選択トランジスタ
36 ノード
40 列回路
Claims (10)
- 複数行に渡って配され、各々が1つのマイクロレンズと、前記1つのマイクロレンズに対応して配された複数の光電変換部とを有し、行ごとに信号を出力する複数の画素を有し、
前記複数行のうちの一部の行の画素が、前記複数の光電変換部が遮光された遮光画素であり、
前記複数行のうちの他の一部の行の画素が、前記複数の光電変換部に、前記1つのマイクロレンズを透過した光が入射する有効画素であり、
前記有効画素は、前記複数の光電変換部の一部のみの光電変換部が生成した信号に基づく第1信号と、前記複数の光電変換部の各々が生成した信号同士を加算することで得られる信号に基づく第2信号とをそれぞれ出力し、
前記遮光画素は、前記複数の光電変換部の各々が生成した信号同士を加算することで得られる信号に基づく第3信号を出力し、
前記第1信号に基づく信号と前記第3信号に基づく信号との第1の差と、前記第2信号に基づく信号と前記第3信号に基づく信号との第2の差を得ることを特徴とする撮像装置。 - 前記第1の差と前記第2の差を得るのに用いられる前記第3信号に基づく信号が、同一の信号であることを特徴とする請求項1に記載の撮像装置。
- 前記第1信号に、所定の値の信号を加算することによって生成された前記第1信号に基づく信号と、前記第3信号に基づく信号とによって前記第1の差を得ることを特徴とする請求項1または2に記載の撮像装置。
- 前記第1の差および前記第2の差を得るのに用いられる前記第3信号に基づく信号が、前記第3信号に、1よりも小さい数を乗じることによって生成された信号であることを特徴とする請求項1または2に記載の撮像装置。
- 前記第1信号、前記第2信号、前記第3信号をそれぞれ、第1デジタル信号、第2デジタル信号、第3デジタル信号のそれぞれに変換し、
前記第1信号に基づく信号、前記第2信号に基づく信号、前記第3信号に基づく信号のそれぞれが、前記第1デジタル信号に基づく信号、前記第2デジタル信号に基づく信号、前記第3デジタル信号に基づく信号のそれぞれであることを特徴とする請求項1または2に記載の撮像装置。 - 前記第1デジタル信号に、所定の値のデジタル信号を加算することによって生成された前記第1デジタル信号に基づく信号と、前記第3デジタル信号に基づく信号とによって前記第1の差を得ることを特徴とする請求項5に記載の撮像装置。
- 前記第1の差および前記第2の差を得るのに用いられる前記第3信号に基づく信号である前記第3デジタル信号に基づく信号が、前記第3デジタル信号に、1よりも小さい数を乗じることによって生成された信号であることを特徴とする請求項5に記載の撮像装置。
- 前記複数の画素が設けられた半導体基板に設けられた信号処理部が、前記第1の差と前記第2の差とを得ることを特徴とする請求項1〜7のいずれか1項に記載の撮像装置。
- 請求項1〜8のいずれか1項に記載の撮像装置と、
前記撮像装置が出力する信号を用いて画像を生成する出力信号処理部とを有することを特徴とする撮像システム。 - 前記出力信号処理部が、前記第1の差と、前記第2の差との差である第3の差を得て、前記第1の差と前記第3の差とを用いて焦点検出を行い、前記第2の差を用いて前記画像を生成することを特徴とする請求項9に記載の撮像システム。
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JP6408372B2 (ja) * | 2014-03-31 | 2018-10-17 | ソニーセミコンダクタソリューションズ株式会社 | 固体撮像装置及びその駆動制御方法、並びに、電子機器 |
JP6587380B2 (ja) * | 2014-09-12 | 2019-10-09 | キヤノン株式会社 | 画像処理装置、撮像装置、画像処理方法、プログラム、記憶媒体 |
KR102541701B1 (ko) * | 2016-01-15 | 2023-06-13 | 삼성전자주식회사 | 씨모스 이미지 센서 |
KR102519712B1 (ko) | 2019-01-18 | 2023-04-06 | 삼성전자주식회사 | 이미지 센서 |
US11381768B2 (en) | 2019-05-07 | 2022-07-05 | Samsung Electronics Co., Ltd. | Image sensor with pixels including photodiodes sharing floating diffusion region |
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