CN102879975B - 具有焦点检测装置的照相机 - Google Patents
具有焦点检测装置的照相机 Download PDFInfo
- Publication number
- CN102879975B CN102879975B CN201210244258.7A CN201210244258A CN102879975B CN 102879975 B CN102879975 B CN 102879975B CN 201210244258 A CN201210244258 A CN 201210244258A CN 102879975 B CN102879975 B CN 102879975B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- phtographic lens
- light
- contrast value
- contrast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
-
- 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
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
-
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
- G03B7/17—Selection of modes in flash units by exposure control arrangements
-
- 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
- H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
-
- 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
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Optics & Photonics (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
- Studio Devices (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011155413A JP5941630B2 (ja) | 2011-07-14 | 2011-07-14 | カメラ |
JP2011-155413 | 2011-07-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102879975A CN102879975A (zh) | 2013-01-16 |
CN102879975B true CN102879975B (zh) | 2016-01-06 |
Family
ID=47481358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210244258.7A Expired - Fee Related CN102879975B (zh) | 2011-07-14 | 2012-07-13 | 具有焦点检测装置的照相机 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8823867B2 (zh) |
JP (1) | JP5941630B2 (zh) |
CN (1) | CN102879975B (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104253945B (zh) * | 2013-06-26 | 2017-12-22 | 杭州海康威视数字技术股份有限公司 | 一种高清相机的实现方法以及一种高清相机 |
CN104660914B (zh) * | 2013-11-18 | 2019-01-08 | 杭州海康威视数字技术股份有限公司 | 一种高清相机的实现方法以及一种高清相机 |
JP6369019B2 (ja) * | 2013-12-12 | 2018-08-08 | セイコーエプソン株式会社 | 画像評価装置および画像評価プログラム |
GB2523163A (en) * | 2014-02-17 | 2015-08-19 | Nokia Technologies Oy | A method, apparatus and computer program for measuring lens movements |
CN104702850B (zh) * | 2014-03-20 | 2018-03-30 | 杭州海康威视数字技术股份有限公司 | 一种互补金属氧化物半导体摄像机及其补光方法 |
CN104243815B (zh) * | 2014-08-25 | 2017-09-29 | 联想(北京)有限公司 | 一种对焦方法及电子设备 |
EP3190785A4 (en) * | 2014-09-05 | 2018-03-28 | Olympus Corporation | Imaging device and processing device |
JP6474693B2 (ja) * | 2015-06-19 | 2019-02-27 | オリンパス株式会社 | 焦点検出装置、焦点検出方法、および記録媒体 |
US11022859B2 (en) * | 2017-02-06 | 2021-06-01 | Sony Corporation | Light emission control apparatus, light emission control method, light emission apparatus, and imaging apparatus |
CN111432143B (zh) * | 2020-04-10 | 2022-08-16 | 展讯通信(上海)有限公司 | 摄像头模组切换的控制方法、系统、介质及电子设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1402077A (zh) * | 2001-08-10 | 2003-03-12 | 佳能株式会社 | 摄像装置、焦点调节方法和焦点调节用计算机控制程序 |
CN1484776A (zh) * | 2001-10-03 | 2004-03-24 | ���ṫ˾ | 图像拾取设备 |
CN1659467A (zh) * | 2002-05-30 | 2005-08-24 | 索尼株式会社 | 成像器件、信号处理方法、记录介质和程序 |
CN1932633A (zh) * | 2005-09-12 | 2007-03-21 | 株式会社理光 | 照相机 |
CN101750846A (zh) * | 2008-12-12 | 2010-06-23 | 佳能株式会社 | 摄像设备 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58214113A (ja) * | 1982-06-05 | 1983-12-13 | Olympus Optical Co Ltd | 内視鏡用合焦検出装置 |
US5293194A (en) * | 1990-01-25 | 1994-03-08 | Canon Kabushiki Kaisha | Focus detection apparatus having an auxiliary light |
JPH08327888A (ja) | 1995-06-02 | 1996-12-13 | Minolta Co Ltd | オートフォーカスカメラ |
JP2000121924A (ja) * | 1998-10-20 | 2000-04-28 | Olympus Optical Co Ltd | 自動焦点調節装置 |
JP2001249269A (ja) * | 2000-03-08 | 2001-09-14 | Canon Inc | 焦点検出装置及びカメラの焦点検出装置 |
JP2002072309A (ja) * | 2000-09-01 | 2002-03-12 | Canon Inc | カメラ及びカメラシステム |
JP2003066321A (ja) * | 2001-08-29 | 2003-03-05 | Mega Chips Corp | Af制御装置およびaf制御方法 |
JP4016723B2 (ja) * | 2002-05-30 | 2007-12-05 | ソニー株式会社 | 撮影装置、信号処理方法、記録媒体、並びにプログラム |
JP2004212431A (ja) * | 2002-12-27 | 2004-07-29 | Casio Comput Co Ltd | オートフォーカス装置及びオートフォーカス方法 |
TWI265368B (en) * | 2005-03-22 | 2006-11-01 | Compal Electronics Inc | Method of using flash light pre-flash for focus |
JP2007072193A (ja) * | 2005-09-07 | 2007-03-22 | Olympus Imaging Corp | カメラ |
JP2008046255A (ja) * | 2006-08-11 | 2008-02-28 | Fujifilm Corp | Af補助光搭載カメラ |
JP2008058701A (ja) * | 2006-08-31 | 2008-03-13 | Canon Inc | 光学機器およびその制御方法 |
JP2008242226A (ja) * | 2007-03-28 | 2008-10-09 | Fujifilm Corp | 撮影装置、及び撮影レンズの合焦制御方法 |
JP5324195B2 (ja) * | 2008-11-25 | 2013-10-23 | 三星電子株式会社 | 撮像装置及び撮像方法 |
-
2011
- 2011-07-14 JP JP2011155413A patent/JP5941630B2/ja not_active Expired - Fee Related
-
2012
- 2012-07-06 US US13/543,346 patent/US8823867B2/en not_active Expired - Fee Related
- 2012-07-13 CN CN201210244258.7A patent/CN102879975B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1402077A (zh) * | 2001-08-10 | 2003-03-12 | 佳能株式会社 | 摄像装置、焦点调节方法和焦点调节用计算机控制程序 |
CN1484776A (zh) * | 2001-10-03 | 2004-03-24 | ���ṫ˾ | 图像拾取设备 |
CN1659467A (zh) * | 2002-05-30 | 2005-08-24 | 索尼株式会社 | 成像器件、信号处理方法、记录介质和程序 |
CN1932633A (zh) * | 2005-09-12 | 2007-03-21 | 株式会社理光 | 照相机 |
CN101750846A (zh) * | 2008-12-12 | 2010-06-23 | 佳能株式会社 | 摄像设备 |
Also Published As
Publication number | Publication date |
---|---|
US8823867B2 (en) | 2014-09-02 |
JP2013020196A (ja) | 2013-01-31 |
CN102879975A (zh) | 2013-01-16 |
US20130016277A1 (en) | 2013-01-17 |
JP5941630B2 (ja) | 2016-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
C41 | Transfer of patent application or patent right or utility model | ||
GR01 | Patent grant | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20151214 Address after: Tokyo, Japan Applicant after: OLYMPUS Corp. Address before: Tokyo, Japan Applicant before: Olympus Imaging Corp. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211213 Address after: Tokyo, Japan Patentee after: Aozhixin Digital Technology Co.,Ltd. Address before: Tokyo, Japan Patentee before: OLYMPUS Corp. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 |