JP2014513319A - 液体レンズを使用する自動焦点合わせ方法 - Google Patents
液体レンズを使用する自動焦点合わせ方法 Download PDFInfo
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- JP2014513319A JP2014513319A JP2014500237A JP2014500237A JP2014513319A JP 2014513319 A JP2014513319 A JP 2014513319A JP 2014500237 A JP2014500237 A JP 2014500237A JP 2014500237 A JP2014500237 A JP 2014500237A JP 2014513319 A JP2014513319 A JP 2014513319A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/045—Control thereof
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00188—Optical arrangements with focusing or zooming features
- A61B1/0019—Optical arrangements with focusing or zooming features characterised by variable lenses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
- A61B1/247—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth with means for viewing areas outside the direct line of sight, e.g. dentists' mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/12—Fluid-filled or evacuated lenses
- G02B3/14—Fluid-filled or evacuated lenses of variable focal length
-
- 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
- G02B7/285—Systems for automatic generation of focusing signals including two or more different focus detection devices, e.g. both an active and a passive focus detecting device
-
- 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
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Physics & Mathematics (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Endoscopes (AREA)
- Eye Examination Apparatus (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Automatic Focus Adjustment (AREA)
- Studio Devices (AREA)
Abstract
Description
Claims (10)
- 口腔内カメラのための自動焦点合わせ方法であって、
少なくとも第1、第2、および第3の焦点位置を有する周期で、液体レンズの前記焦点を調節することと、
各焦点位置で画像を得、前記得られた画像の焦点を測定することと、
前記測定された焦点に従って、前記液体レンズの位置を調整することと、
少なくとも第1、第2、および第3の焦点位置を伴う前記周期で、前記液体レンズの前記焦点を調節するステップ、ならびに各焦点位置で前記画像を得、前記得られた画像の焦点を測定するステップを反復することと、を含む、方法。 - 各焦点位置で画像を得ることは、相補型金属酸化膜半導体センサから画像を得ることを含む、請求項1に記載の自動焦点合わせ方法。
- 各焦点位置で画像を得ることは、電荷結合素子センサから画像を得ることを含む、請求項1に記載の自動焦点合わせ方法。
- レンズ位置を調整することは、前記第1の位置での前記画像の前記焦点が、前記第2の位置での前記画像の前記焦点を超えるとき、レンズ位置を1つの方向に調整することと、前記第3の位置での前記画像の前記焦点が、前記第2の位置での前記画像の前記焦点を超えるとき、レンズ位置を反対側の方向で調整することと、を含む、請求項1に記載の方法。
- 前記第1の位置は、ニアオフセット位置であり、前記第2の位置は、中央位置であり、前記第3の位置は、ファーオフセット位置である、請求項1に記載の方法。
- 前記測定された焦点は、前記得られた画像の輝度に基づく、請求項1に記載の方法。
- 前記液体レンズの前記焦点を調節することは、第1、第2、および第3の電圧レベルを印加することを含む、請求項1に記載の方法。
- 口腔内カメラのための自動焦点合わせ方法であって、
少なくとも第1、第2、および第3の焦点位置を有する周期で、対応する第1、第2、および第3の電圧を前記液体レンズに印加することによって、液体レンズの前記焦点を調節することと、
前記第1、第2、および第3の焦点位置の各々で画像を得、各位置で前記得られた画像の焦点を測定することと、
前記測定された焦点に従って、前記液体レンズの位置をその光軸に沿って調整することと、
少なくとも第1、第2、および第3の焦点位置を伴う前記周期で、前記液体レンズの前記焦点を調節するステップ、ならびに各焦点位置で前記画像を得、画像コントラストを測定することによって、各々得られた画像の焦点を測定するステップを1回以上、反復することと、を含む、方法。 - 前記前記第1、第2、および第3の焦点位置の各々で画像を得ることは、ローリングシャッターモードで前記画像を得ることを含む、請求項8に記載の方法。
- 前記前記第1、第2、および第3の焦点位置の各々で画像を得ることは、グローバルシャッターモードで前記画像を得ることを含む、請求項8に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161454651P | 2011-03-21 | 2011-03-21 | |
US61/454,651 | 2011-03-21 | ||
PCT/CN2012/072302 WO2012126324A1 (en) | 2011-03-21 | 2012-03-14 | Autofocus method using liquid lens |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014513319A true JP2014513319A (ja) | 2014-05-29 |
JP2014513319A5 JP2014513319A5 (ja) | 2014-11-06 |
Family
ID=46878624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014500237A Pending JP2014513319A (ja) | 2011-03-21 | 2012-03-14 | 液体レンズを使用する自動焦点合わせ方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9204788B2 (ja) |
EP (1) | EP2689291A4 (ja) |
JP (1) | JP2014513319A (ja) |
KR (1) | KR20140008374A (ja) |
CN (1) | CN103415806A (ja) |
WO (1) | WO2012126324A1 (ja) |
Cited By (2)
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JP2020039808A (ja) * | 2018-09-13 | 2020-03-19 | 株式会社モリタ東京製作所 | 治療状況イメージングシステム |
JP2021524056A (ja) * | 2018-05-04 | 2021-09-09 | エルジー イノテック カンパニー リミテッド | カメラモジュール |
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US9075906B2 (en) | 2013-06-28 | 2015-07-07 | Elwha Llc | Medical support system including medical equipment case |
CN103487927B (zh) * | 2013-10-16 | 2016-08-10 | 北京航空航天大学 | 一种显微镜自动调焦方法 |
US9551872B1 (en) | 2013-12-30 | 2017-01-24 | Google Inc. | Spatially multiplexed lens for head mounted display |
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CN105527778A (zh) * | 2016-01-16 | 2016-04-27 | 上海大学 | 电动可调焦液体镜头的自动对焦方法 |
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KR102637778B1 (ko) * | 2016-11-07 | 2024-02-19 | 엘지이노텍 주식회사 | 카메라 모듈 및 카메라 모듈의 동작 방법 |
CN109716746B (zh) * | 2016-09-13 | 2021-06-01 | Lg伊诺特有限公司 | 双相机模块、光学装置、相机模块及用于操作相机模块的方法 |
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2012
- 2012-03-14 KR KR1020137024138A patent/KR20140008374A/ko not_active Application Discontinuation
- 2012-03-14 WO PCT/CN2012/072302 patent/WO2012126324A1/en active Application Filing
- 2012-03-14 EP EP12760604.4A patent/EP2689291A4/en not_active Withdrawn
- 2012-03-14 US US14/003,261 patent/US9204788B2/en not_active Expired - Fee Related
- 2012-03-14 CN CN2012800121787A patent/CN103415806A/zh active Pending
- 2012-03-14 JP JP2014500237A patent/JP2014513319A/ja active Pending
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JPS6236632A (ja) * | 1985-08-09 | 1987-02-17 | Matsushita Electric Ind Co Ltd | 自動焦点整合用レンズ装置 |
JPH02210977A (ja) * | 1989-12-01 | 1990-08-22 | Hitachi Ltd | 自動焦点合わせ装置 |
JP2010194296A (ja) * | 2009-01-28 | 2010-09-09 | Panasonic Corp | 口腔内測定装置及び口腔内測定システム |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2021524056A (ja) * | 2018-05-04 | 2021-09-09 | エルジー イノテック カンパニー リミテッド | カメラモジュール |
JP2020039808A (ja) * | 2018-09-13 | 2020-03-19 | 株式会社モリタ東京製作所 | 治療状況イメージングシステム |
JP7240702B2 (ja) | 2018-09-13 | 2023-03-16 | 株式会社モリタ東京製作所 | 治療状況イメージングシステム |
Also Published As
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US20140002626A1 (en) | 2014-01-02 |
WO2012126324A1 (en) | 2012-09-27 |
EP2689291A1 (en) | 2014-01-29 |
US9204788B2 (en) | 2015-12-08 |
KR20140008374A (ko) | 2014-01-21 |
EP2689291A4 (en) | 2014-10-01 |
CN103415806A (zh) | 2013-11-27 |
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