JPS55155308A - Focusing position detecting system - Google Patents
Focusing position detecting systemInfo
- Publication number
- JPS55155308A JPS55155308A JP6337679A JP6337679A JPS55155308A JP S55155308 A JPS55155308 A JP S55155308A JP 6337679 A JP6337679 A JP 6337679A JP 6337679 A JP6337679 A JP 6337679A JP S55155308 A JPS55155308 A JP S55155308A
- Authority
- JP
- Japan
- Prior art keywords
- curve
- photo
- photo detectors
- focal plane
- disposed
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6337679A JPS55155308A (en) | 1979-05-23 | 1979-05-23 | Focusing position detecting system |
US06/151,533 US4341953A (en) | 1979-05-23 | 1980-05-19 | Focus detecting system |
DE19803019901 DE3019901A1 (de) | 1979-05-23 | 1980-05-23 | Scharfeinstellungs-ermittlungssystem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6337679A JPS55155308A (en) | 1979-05-23 | 1979-05-23 | Focusing position detecting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55155308A true JPS55155308A (en) | 1980-12-03 |
Family
ID=13227502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6337679A Pending JPS55155308A (en) | 1979-05-23 | 1979-05-23 | Focusing position detecting system |
Country Status (3)
Country | Link |
---|---|
US (1) | US4341953A (ja) |
JP (1) | JPS55155308A (ja) |
DE (1) | DE3019901A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57158817A (en) * | 1981-03-27 | 1982-09-30 | Olympus Optical Co Ltd | System for focusing detection |
JPS6060612A (ja) * | 1983-09-13 | 1985-04-08 | Canon Inc | カメラの焦点検出装置 |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5650315A (en) * | 1979-10-01 | 1981-05-07 | Canon Inc | Focus detecting method and device |
JPS5767904A (en) * | 1980-10-16 | 1982-04-24 | Canon Inc | Deciding system for adjusting state of focus |
DE3141182A1 (de) * | 1980-10-16 | 1982-05-19 | Canon K.K., Tokyo | "scharfeinstellungs-ermittlungssystem" |
JPS5768813A (en) * | 1980-10-17 | 1982-04-27 | Matsushita Electric Ind Co Ltd | Optical information reader |
JPS57161838A (en) * | 1981-03-31 | 1982-10-05 | Canon Inc | Focus detector of camera |
JPS584109A (ja) * | 1981-06-30 | 1983-01-11 | Canon Inc | プレ検出装置 |
JPS5821714A (ja) * | 1981-07-31 | 1983-02-08 | Asahi Optical Co Ltd | 光束分割器 |
JPS5836079A (ja) * | 1981-08-26 | 1983-03-02 | Canon Inc | 光電変換手段の信号蓄積時間制御方式 |
JPS5842004A (ja) * | 1981-09-07 | 1983-03-11 | Canon Inc | 光学素子の位置決め方法 |
JPS5888726A (ja) * | 1981-11-20 | 1983-05-26 | Canon Inc | レンズ交換可能な自動焦点カメラ |
JPS5897009A (ja) * | 1981-12-04 | 1983-06-09 | Olympus Optical Co Ltd | 自動焦点調節方法 |
JPS58153327A (ja) * | 1982-03-08 | 1983-09-12 | Toshiba Corp | パタ−ン検査装置 |
JPS58158624A (ja) * | 1982-03-17 | 1983-09-20 | Canon Inc | 自動焦点カメラ |
JPS58211721A (ja) * | 1982-06-04 | 1983-12-09 | Olympus Optical Co Ltd | 合焦検出方法 |
US4567362A (en) * | 1982-06-25 | 1986-01-28 | Gretag Aktiengesellschaft | Process and apparatus for the focusing of a beam of light on an object |
JPS5944029A (ja) * | 1982-09-06 | 1984-03-12 | Olympus Optical Co Ltd | 自動焦点調節装置 |
JPS5961807A (ja) * | 1982-09-30 | 1984-04-09 | Canon Inc | 自動焦点制御装置 |
JPS5993409A (ja) * | 1982-11-19 | 1984-05-29 | Canon Inc | 合焦誤差検出装置 |
US4626674A (en) * | 1983-02-10 | 1986-12-02 | Olympus Optical Company, Ltd. | Focus detecting method and apparatus |
JPS6032014A (ja) * | 1983-08-01 | 1985-02-19 | Minolta Camera Co Ltd | カメラの焦点検出装置 |
US4827301A (en) * | 1984-12-11 | 1989-05-02 | Minolta Camera Kabushiki Kaisha | Focus detection system and lighting device therefor |
US4690538A (en) * | 1984-12-11 | 1987-09-01 | Minolta Camera Kabushiki Kaisha | Focus detection system and lighting device therefor |
DE3776368D1 (de) * | 1986-02-17 | 1992-03-12 | Philips Nv | Kamera zur aufnahme von fernsehbildern, photographischen oder kinematographischen bildern mit automatischer fokussierungsvorrichtung. |
JPS62210414A (ja) * | 1986-03-12 | 1987-09-16 | Minolta Camera Co Ltd | 焦点検出装置 |
US4904854A (en) * | 1987-01-12 | 1990-02-27 | Minolta Camera Kabushiki Kaisha | Automatic focus detecting device having deviation compensation |
US5097282A (en) * | 1987-02-06 | 1992-03-17 | Minolta Camera Kabushiki Kaisha | Automatic focusing apparatus |
US4857718A (en) * | 1987-05-15 | 1989-08-15 | Minolta Camera Kabushiki Kaisha | Focus detecting device |
JP2605282B2 (ja) * | 1987-05-21 | 1997-04-30 | ミノルタ株式会社 | 自動焦点調節装置 |
US5243375A (en) * | 1987-05-21 | 1993-09-07 | Minolta Camera Kabushiki Kaisha | Automatic focus adjusting device for adjusting the focus of the main object to be photographed |
US5144357A (en) * | 1987-11-06 | 1992-09-01 | Minolta Camera Kabushiki Kaisha | Automatic focus detecting means |
JP2662650B2 (ja) * | 1987-11-06 | 1997-10-15 | ミノルタ株式会社 | 自動焦点調節装置 |
US5166506A (en) * | 1991-01-30 | 1992-11-24 | Eastman Kodak Company | Method for determining an imaging system focus error |
AU3723993A (en) * | 1992-02-18 | 1993-09-03 | Neopath, Inc. | Method and apparatus for rapid capture of focused microscopic images |
US5912699A (en) * | 1992-02-18 | 1999-06-15 | Neopath, Inc. | Method and apparatus for rapid capture of focused microscopic images |
US5396058A (en) * | 1993-06-10 | 1995-03-07 | Eastman Kodak Company | Robust method for determining an imaging system focus error |
JPH0743605A (ja) * | 1993-08-02 | 1995-02-14 | Minolta Co Ltd | 自動焦点装置 |
US5432331A (en) * | 1994-06-07 | 1995-07-11 | Eastman Kodak Company | Method and apparatus for detecting focus of moving images with tilted plane detector and time delay means |
JPH0875984A (ja) * | 1994-09-06 | 1996-03-22 | Nikon Corp | 音声装置付き自動焦点カメラ |
US5552594A (en) * | 1995-02-14 | 1996-09-03 | Eastman Kodak Company | Focus detecting system using a beam splitter to form an image at nominal best focus, slightly in front of best focus and slightly behind best focus |
US5642433A (en) * | 1995-07-31 | 1997-06-24 | Neopath, Inc. | Method and apparatus for image contrast quality evaluation |
US5642441A (en) * | 1995-10-24 | 1997-06-24 | Neopath, Inc. | Separation apparatus and method for measuring focal plane |
US5705803A (en) * | 1996-07-23 | 1998-01-06 | Eastman Kodak Company | Covariance focus sensor |
JP4045483B2 (ja) * | 2002-03-13 | 2008-02-13 | フジノン株式会社 | ピント状態検出装置 |
US9690168B2 (en) | 2006-11-20 | 2017-06-27 | Red.Com, Inc. | Focus assist system and method |
US7544919B2 (en) * | 2006-11-20 | 2009-06-09 | Red.Com, Inc. | Focus assist system and method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5245353A (en) * | 1975-10-08 | 1977-04-09 | Hitachi Ltd | Automatically focusing device |
JPS54161325A (en) * | 1978-06-10 | 1979-12-20 | Ricoh Co Ltd | Focus detector |
JPS5560903A (en) * | 1978-11-01 | 1980-05-08 | Olympus Optical Co Ltd | Focus detector |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1547457A1 (de) * | 1966-01-22 | 1970-02-19 | Schneider Co Optische Werke | Verfahren und Vorrichtung zur automatischen Scharfeinstellung optischer Systeme |
US4008965A (en) * | 1972-05-06 | 1977-02-22 | Asahi Optical Co., Ltd. | Method and device for use in detecting a precise focusing point |
US3967110A (en) * | 1973-09-21 | 1976-06-29 | Corning Glass Works | Automatic focusing system |
US4083056A (en) * | 1975-09-09 | 1978-04-04 | Asahi Kogaku Kogyo Kabushiki Kaisha | Focus detecting device for single-lens reflex cameras |
GB2047905B (en) * | 1979-02-13 | 1983-06-15 | Asahi Optical Co Ltd | Focus indicating device for a camera |
-
1979
- 1979-05-23 JP JP6337679A patent/JPS55155308A/ja active Pending
-
1980
- 1980-05-19 US US06/151,533 patent/US4341953A/en not_active Expired - Lifetime
- 1980-05-23 DE DE19803019901 patent/DE3019901A1/de active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5245353A (en) * | 1975-10-08 | 1977-04-09 | Hitachi Ltd | Automatically focusing device |
JPS54161325A (en) * | 1978-06-10 | 1979-12-20 | Ricoh Co Ltd | Focus detector |
JPS5560903A (en) * | 1978-11-01 | 1980-05-08 | Olympus Optical Co Ltd | Focus detector |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57158817A (en) * | 1981-03-27 | 1982-09-30 | Olympus Optical Co Ltd | System for focusing detection |
JPH0364847B2 (ja) * | 1981-03-27 | 1991-10-08 | Olympus Optical Co | |
JPS6060612A (ja) * | 1983-09-13 | 1985-04-08 | Canon Inc | カメラの焦点検出装置 |
Also Published As
Publication number | Publication date |
---|---|
US4341953A (en) | 1982-07-27 |
DE3019901A1 (de) | 1980-11-27 |
DE3019901C2 (ja) | 1992-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55155308A (en) | Focusing position detecting system | |
JPS5576312A (en) | Focus detecting system of image | |
JPS5598709A (en) | Focusing detector | |
JPS57108810A (en) | Focus detector | |
JPS5295221A (en) | Detector for focusing | |
JPS5428133A (en) | Optical path extension device with focus detection function | |
JPS55155331A (en) | Focus detector | |
JPS5598710A (en) | Focus detector | |
JPS5689005A (en) | Position detector | |
JPS57204504A (en) | Photodetection part of focus detector | |
JPS55111922A (en) | Focus detection indicator of camera | |
JPS5299820A (en) | Focusing glass | |
JPS55106421A (en) | Focusing detector | |
JPS57150808A (en) | Focus detecting device | |
JPS55108630A (en) | Focus detector of camera | |
JPS5669606A (en) | Focus detector | |
JPS55159417A (en) | Aperture value detector | |
JPS57130006A (en) | Focus detector | |
JPS55106427A (en) | Single-lens reflex camera | |
JPS55106429A (en) | Automatic focusing camera | |
JPS55108629A (en) | Focus detector of camera | |
JPS5574403A (en) | Light position detector | |
JPS5595915A (en) | Fundus camera | |
JPS57148710A (en) | Focus detector | |
JPS55155339A (en) | Focus set state display device |