JP2015087494A - 撮像装置 - Google Patents
撮像装置 Download PDFInfo
- Publication number
- JP2015087494A JP2015087494A JP2013224949A JP2013224949A JP2015087494A JP 2015087494 A JP2015087494 A JP 2015087494A JP 2013224949 A JP2013224949 A JP 2013224949A JP 2013224949 A JP2013224949 A JP 2013224949A JP 2015087494 A JP2015087494 A JP 2015087494A
- Authority
- JP
- Japan
- Prior art keywords
- light receiving
- wavelength
- sensitivity
- focus
- infrared
- Prior art date
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- 238000003384 imaging method Methods 0.000 title claims abstract description 33
- 230000035945 sensitivity Effects 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 35
- 230000005484 gravity Effects 0.000 claims abstract description 16
- 230000004075 alteration Effects 0.000 claims description 18
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 description 24
- 238000012937 correction Methods 0.000 description 16
- 230000006870 function Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/672—Focus control based on electronic image sensor signals based on the phase difference signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/11—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
- H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
- H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
- H04N25/131—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements including elements passing infrared wavelengths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
- H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
- H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
- H04N25/135—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on four or more different wavelength filter elements
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Focusing (AREA)
- Studio Devices (AREA)
- Automatic Focus Adjustment (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
Description
f(γ)=α(X)×(γ−L)
を作成する。なお、Lは定数であり、基準光源aからの光によって被写体が照明されたときのf(γ)の値が0になるように決定される。つまり、Lは基準光源aからの光によって被写体を照明したときのγに等しい。
Y=Y1+Y2
により計算する。つまり、カメラコントローラ14は、デフォーカス量(焦点情報)Y1と、測光センサ7からの光源情報および被写体色情報に応じたデフォーカス補正量Y2とを用いて補正デフォーカス量Yを算出する。
7 測光センサ
10 焦点検出部
13 赤外カットフィルタ
14 カメラコントローラ
Claims (6)
- 撮影光学系を通った被写体からの光を用いて該撮影光学系の焦点状態を示す焦点情報を生成する焦点検出手段と、
前記被写体からの光を受光し、可視光波長域における互いに異なる波長域に感度重心を有する複数の可視光用受光素子を有する受光センサと、
前記撮影光学系のフォーカス制御を行う制御手段とを有し、
前記受光センサは、前記可視光用受光素子とは別に、赤外光波長域に感度重心を有する複数の赤外光用受光素子を有し、
前記受光センサよりも光入射側に、前記赤外光用受光素子の感度重心波長よりも長い半値波長を有する赤外カットフィルタが配置されており、
前記制御手段は、前記焦点情報、前記可視光用受光素子からの出力および前記赤外光用受光素子からの出力を用いて前記フォーカス制御を行うことを特徴とする撮像装置。 - 前記赤外光用受光素子は、680nmより長く740nmより短い波長域に感度重心を有し、
前記赤外カットフィルタは、前記赤外光用受光素子の感度重心波長より長く740nm以下の波長域に半値波長を有することを特徴とする請求項1に記載の撮像装置。 - 前記制御手段は、前記複数の可視光用受光素子のうち最も長波長側に感度重心を有する可視光用受光素子の出力から前記赤外光用受光素子の出力を差し引いた値を用いて前記フォーカス制御を行うことを特徴とする請求項1または2に記載の撮像装置。
- 前記可視光用受光素子のうち最も長波長側に感度重心を有する受光素子の感度重心波長は、前記赤外光用受光素子の感度重心波長よりも50nm以上短いことを特徴とする請求項1から3のいずれか一項に記載の撮像装置。
- 前記赤外光用受光素子の半値幅が、40nm以上であることを特徴とする請求項1から4のいずれか一項に記載の撮像装置。
- 前記制御手段は、前記撮影光学系の色収差情報を取得し、該色収差情報を用いて前記フォーカス制御を行うことを特徴とする請求項1から5のいずれか一項に記載の撮像装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013224949A JP6529214B2 (ja) | 2013-10-30 | 2013-10-30 | 撮像装置 |
US14/524,538 US9906705B2 (en) | 2013-10-30 | 2014-10-27 | Image pickup apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013224949A JP6529214B2 (ja) | 2013-10-30 | 2013-10-30 | 撮像装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2015087494A true JP2015087494A (ja) | 2015-05-07 |
JP2015087494A5 JP2015087494A5 (ja) | 2016-10-27 |
JP6529214B2 JP6529214B2 (ja) | 2019-06-12 |
Family
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---|---|---|---|
JP2013224949A Active JP6529214B2 (ja) | 2013-10-30 | 2013-10-30 | 撮像装置 |
Country Status (2)
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US (1) | US9906705B2 (ja) |
JP (1) | JP6529214B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021153254A (ja) * | 2020-03-24 | 2021-09-30 | 富士フイルム株式会社 | 撮像装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108008405A (zh) * | 2018-01-15 | 2018-05-08 | 上海兰宝传感科技股份有限公司 | 一种双波长光电传感器测距系统及方法 |
Citations (7)
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---|---|---|---|---|
JP2003324751A (ja) * | 2002-05-07 | 2003-11-14 | Toshiba Corp | 情報入力装置 |
JP2004109863A (ja) * | 2002-09-20 | 2004-04-08 | Canon Inc | 焦点検出装置、それを有する撮像装置、及び撮影レンズ |
JP2007132967A (ja) * | 2005-11-08 | 2007-05-31 | Canon Inc | 焦点検出装置及び方法、並びに、撮像装置 |
JP2011053377A (ja) * | 2009-08-31 | 2011-03-17 | Canon Inc | 撮像装置及びその制御方法 |
JP2011149901A (ja) * | 2010-01-25 | 2011-08-04 | Rohm Co Ltd | 受光装置およびモバイル機器 |
JP2011151596A (ja) * | 2010-01-21 | 2011-08-04 | Rohm Co Ltd | 生体認証装置およびモバイル機器 |
JP2012168429A (ja) * | 2011-02-16 | 2012-09-06 | Canon Inc | 撮像装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2900390B2 (ja) * | 1988-07-07 | 1999-06-02 | 株式会社ニコン | 焦点検出装置 |
JP2006098771A (ja) | 2004-09-29 | 2006-04-13 | Canon Inc | 焦点検出装置、撮像装置、撮像システム及びレンズユニット |
US8134191B2 (en) * | 2006-01-24 | 2012-03-13 | Panasonic Corporation | Solid-state imaging device, signal processing method, and camera |
US8653461B1 (en) * | 2007-03-23 | 2014-02-18 | Flir Systems, Inc. | Thermography camera tuned to detect absorption of infrared radiation in a selected spectral bandwidth |
JP4986761B2 (ja) * | 2007-08-03 | 2012-07-25 | キヤノン株式会社 | 撮像装置 |
US8049892B2 (en) * | 2008-01-22 | 2011-11-01 | Honeywell International Inc. | Apparatus and method for camera-based color measurements |
US8629916B2 (en) * | 2008-08-19 | 2014-01-14 | Rohm Co., Ltd. | Camera with imaging unit and imaging unit for camera |
-
2013
- 2013-10-30 JP JP2013224949A patent/JP6529214B2/ja active Active
-
2014
- 2014-10-27 US US14/524,538 patent/US9906705B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003324751A (ja) * | 2002-05-07 | 2003-11-14 | Toshiba Corp | 情報入力装置 |
JP2004109863A (ja) * | 2002-09-20 | 2004-04-08 | Canon Inc | 焦点検出装置、それを有する撮像装置、及び撮影レンズ |
JP2007132967A (ja) * | 2005-11-08 | 2007-05-31 | Canon Inc | 焦点検出装置及び方法、並びに、撮像装置 |
JP2011053377A (ja) * | 2009-08-31 | 2011-03-17 | Canon Inc | 撮像装置及びその制御方法 |
JP2011151596A (ja) * | 2010-01-21 | 2011-08-04 | Rohm Co Ltd | 生体認証装置およびモバイル機器 |
JP2011149901A (ja) * | 2010-01-25 | 2011-08-04 | Rohm Co Ltd | 受光装置およびモバイル機器 |
JP2012168429A (ja) * | 2011-02-16 | 2012-09-06 | Canon Inc | 撮像装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021153254A (ja) * | 2020-03-24 | 2021-09-30 | 富士フイルム株式会社 | 撮像装置 |
JP7316966B2 (ja) | 2020-03-24 | 2023-07-28 | 富士フイルム株式会社 | 撮像装置 |
Also Published As
Publication number | Publication date |
---|---|
US20150116500A1 (en) | 2015-04-30 |
JP6529214B2 (ja) | 2019-06-12 |
US9906705B2 (en) | 2018-02-27 |
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