JP5204728B2 - 焦点検出装置 - Google Patents
焦点検出装置 Download PDFInfo
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- JP5204728B2 JP5204728B2 JP2009150890A JP2009150890A JP5204728B2 JP 5204728 B2 JP5204728 B2 JP 5204728B2 JP 2009150890 A JP2009150890 A JP 2009150890A JP 2009150890 A JP2009150890 A JP 2009150890A JP 5204728 B2 JP5204728 B2 JP 5204728B2
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Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
- G02B7/38—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals measured at different points on the optical axis, e.g. focussing on two or more planes and comparing image data
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Description
24 AFモジュール(焦点検出装置)
27 コンデンサーレンズ
28 セパレータレンズ
29 セパレータマスク
30 システムコントロール回路
40 焦点検出部(出力手段)
EA1 ラインセンサ群
LSA1〜LSA9 ラインセンサ
LMA1〜LMA9 モニタセンサ
PA1 投影領域
Claims (7)
- 被写体からの光を結像する結像光学系と、
前記結像光学系の投影領域に配列した複数のラインセンサと、
前記複数のラインセンサの側にそれぞれ配置され、それぞれ対応するラインセンサの受光量をモニタリングする複数のモニタセンサと、
前記複数のラインセンサに蓄積された電荷に基づいて被写体像の画像信号を出力する出力手段とを備え、
配列最外部となる両端のラインセンサに応じたモニタセンサそれぞれが、投影領域内に収まるように、対応するラインセンサの投影領域中心部側に配置されることを特徴とする焦点検出装置。 - 前記複数のモニタセンサが、それぞれ対応するラインセンサの投影領域中心部側に配置されることを特徴とする請求項1に記載の焦点検出装置。
- 前記配列最外部のラインセンサに応じたモニタセンサのサイズが、投影領域内に収まるように、投影領域中心部付近にあるモニタセンサよりも小さいことを特徴とする請求項1乃至2のいずれかに記載の焦点検出装置。
- 前記複数のモニタセンサのサイズが、投影領域中心部から離れるほど小さくなることを特徴とする請求項1乃至3のいずれかに記載の焦点検出装置。
- 前記複数のモニタセンサが、ラインセンサ間においてラインセンサ配列方向に隣り合うことを特徴とする請求項1乃至4のいずれかに記載の焦点検出装置。
- 前記複数のラインセンサが、それぞれ複数のラインセンサを並列させた複数のラインセンサ群を有し、
前記結像光学系が、各ラインセンサ群に対して被写体像を投影することを特徴とする請求項1乃至5のいずれかに記載の焦点検出装置。 - 請求項1に記載された焦点検出装置を備えた撮影装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009150890A JP5204728B2 (ja) | 2009-06-25 | 2009-06-25 | 焦点検出装置 |
US12/822,383 US8305449B2 (en) | 2009-06-25 | 2010-06-24 | Apparatus for detecting focus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009150890A JP5204728B2 (ja) | 2009-06-25 | 2009-06-25 | 焦点検出装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013007395A Division JP5464285B2 (ja) | 2013-01-18 | 2013-01-18 | 焦点検出装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011007996A JP2011007996A (ja) | 2011-01-13 |
JP2011007996A5 JP2011007996A5 (ja) | 2012-08-02 |
JP5204728B2 true JP5204728B2 (ja) | 2013-06-05 |
Family
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JP2009150890A Active JP5204728B2 (ja) | 2009-06-25 | 2009-06-25 | 焦点検出装置 |
Country Status (2)
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US (1) | US8305449B2 (ja) |
JP (1) | JP5204728B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5409201B2 (ja) * | 2009-08-28 | 2014-02-05 | キヤノン株式会社 | 焦点検出装置及び焦点検出方法 |
JP5967916B2 (ja) * | 2011-08-09 | 2016-08-10 | キヤノン株式会社 | 焦点検出センサ及び焦点検出センサを用いた光学機器 |
JP6457822B2 (ja) * | 2015-01-21 | 2019-01-23 | キヤノン株式会社 | 光電変換装置及び撮像システム |
US9804357B2 (en) * | 2015-09-25 | 2017-10-31 | Qualcomm Incorporated | Phase detection autofocus using masked and unmasked photodiodes |
JP6627656B2 (ja) * | 2016-06-20 | 2020-01-08 | リコーイメージング株式会社 | 焦点検出装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7102675B1 (en) * | 1997-11-14 | 2006-09-05 | Canon Kabushiki Kaisha | Photoelectric conversion device, focus detection device, method of controlling these devices, and storage medium |
JP4175582B2 (ja) | 1998-01-20 | 2008-11-05 | キヤノン株式会社 | 光電変換装置及び焦点検出装置 |
JP3731392B2 (ja) * | 1999-07-21 | 2006-01-05 | コニカミノルタフォトイメージング株式会社 | 焦点検出装置 |
JP4606037B2 (ja) * | 2003-02-18 | 2011-01-05 | Hoya株式会社 | 焦点検出素子 |
JP2005300844A (ja) * | 2004-04-09 | 2005-10-27 | Canon Inc | オートフォーカス用固体撮像装置とそれを用いたオートフォーカスカメラ |
JP2005345501A (ja) * | 2004-05-31 | 2005-12-15 | Nikon Corp | 電子カメラ |
US7502065B2 (en) * | 2004-06-16 | 2009-03-10 | Hoya Corporation | Focus detection method and focus detection apparatus |
US7515201B2 (en) * | 2004-06-16 | 2009-04-07 | Hoya Corporation | Focus detection method and focus detection apparatus |
JP2006084556A (ja) * | 2004-09-14 | 2006-03-30 | Pentax Corp | 焦点検出装置 |
US7526192B2 (en) * | 2004-10-07 | 2009-04-28 | Hoya Corporation | Focus detection method and focus detection apparatus |
JP4624082B2 (ja) * | 2004-11-18 | 2011-02-02 | Hoya株式会社 | 焦点検出装置 |
JP4874538B2 (ja) | 2004-11-18 | 2012-02-15 | Hoya株式会社 | 焦点検出装置 |
JP4649974B2 (ja) * | 2004-12-16 | 2011-03-16 | 株式会社ニコン | 焦点検出装置、カメラ |
JP2007322978A (ja) * | 2006-06-05 | 2007-12-13 | Pentax Corp | 焦点検出方法および焦点検出装置 |
JP4270349B2 (ja) * | 2006-10-27 | 2009-05-27 | オリンパス株式会社 | 焦点検出素子 |
JP4994800B2 (ja) * | 2006-11-16 | 2012-08-08 | キヤノン株式会社 | 受光センサ及び焦点検出装置 |
JP5016373B2 (ja) * | 2007-05-15 | 2012-09-05 | ペンタックスリコーイメージング株式会社 | 焦点検出装置の光学系 |
JP4650542B2 (ja) * | 2008-09-09 | 2011-03-16 | ソニー株式会社 | 光量検出装置および撮像装置 |
-
2009
- 2009-06-25 JP JP2009150890A patent/JP5204728B2/ja active Active
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2010
- 2010-06-24 US US12/822,383 patent/US8305449B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20100328521A1 (en) | 2010-12-30 |
JP2011007996A (ja) | 2011-01-13 |
US8305449B2 (en) | 2012-11-06 |
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