JPH0368362B2 - - Google Patents

Info

Publication number
JPH0368362B2
JPH0368362B2 JP56046086A JP4608681A JPH0368362B2 JP H0368362 B2 JPH0368362 B2 JP H0368362B2 JP 56046086 A JP56046086 A JP 56046086A JP 4608681 A JP4608681 A JP 4608681A JP H0368362 B2 JPH0368362 B2 JP H0368362B2
Authority
JP
Japan
Prior art keywords
focus detection
region
light
light receiving
area
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 - Lifetime
Application number
JP56046086A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57161708A (en
Inventor
Masahiro Aoki
Kenichi Ooikami
Masatoshi Ida
Asao Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP56046086A priority Critical patent/JPS57161708A/ja
Priority to DE3211234A priority patent/DE3211234C2/de
Priority to US06/362,993 priority patent/US4483602A/en
Publication of JPS57161708A publication Critical patent/JPS57161708A/ja
Publication of JPH0368362B2 publication Critical patent/JPH0368362B2/ja
Granted legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
JP56046086A 1981-03-28 1981-03-28 Focusing detector having variable visual field of detection Granted JPS57161708A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP56046086A JPS57161708A (en) 1981-03-28 1981-03-28 Focusing detector having variable visual field of detection
DE3211234A DE3211234C2 (de) 1981-03-28 1982-03-26 Vorrichtung zum Feststellen des Fokussierzustandes eines Objektivs eines optischen Gerätes
US06/362,993 US4483602A (en) 1981-03-28 1982-03-29 Apparatus for detecting a focusing condition of an objective lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046086A JPS57161708A (en) 1981-03-28 1981-03-28 Focusing detector having variable visual field of detection

Publications (2)

Publication Number Publication Date
JPS57161708A JPS57161708A (en) 1982-10-05
JPH0368362B2 true JPH0368362B2 (cg-RX-API-DMAC7.html) 1991-10-28

Family

ID=12737171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046086A Granted JPS57161708A (en) 1981-03-28 1981-03-28 Focusing detector having variable visual field of detection

Country Status (3)

Country Link
US (1) US4483602A (cg-RX-API-DMAC7.html)
JP (1) JPS57161708A (cg-RX-API-DMAC7.html)
DE (1) DE3211234C2 (cg-RX-API-DMAC7.html)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE35409E (en) * 1982-09-24 1996-12-24 Moore; Sidney D. Electrically addressable opto-electronic indicator for making dynamic evaluations of microscopic or larger subjects
US4636624A (en) * 1983-01-10 1987-01-13 Minolta Camera Kabushiki Kaisha Focus detecting device for use with cameras
US5202555A (en) * 1983-01-10 1993-04-13 Minolta Camera Kabushiki Kaisha Focus detecting device for use with cameras with correlation and contrast detecting means
JPS60100114A (ja) * 1983-11-05 1985-06-04 Canon Inc 合焦検出装置
US4764786A (en) * 1985-05-27 1988-08-16 Canon Kabushiki Kaisha Distance measuring device for camera
US4684798A (en) * 1985-10-03 1987-08-04 Honeywell Inc. Performance improvement for camera autofocus
DE3645349C2 (de) * 1985-10-22 2000-05-31 Canon Kk Fokussierzustandserfassungsvorrichtung für Objektivlinsen
US4768054A (en) * 1986-02-14 1988-08-30 Minolta Camera Kabushiki Kaisha Focus condition detecting device
US4942418A (en) * 1986-02-14 1990-07-17 Minolta Camera Kabushiki Kaisha Focus condition detecting device
JP2692049B2 (ja) * 1986-07-10 1997-12-17 キヤノン株式会社 焦点検出装置
DE3844873C2 (de) * 1987-09-02 1995-03-09 Canon Kk Bildaufnahmevorrichtung
DE3830794C2 (de) * 1987-09-11 1994-08-11 Canon Kk Automatische Scharfeinstellvorrichtung
DE3844876C2 (de) * 1987-09-11 1996-04-18 Canon Kk Einrichtung zur automatischen Nachführung eines Meßbereichs
JPH0823622B2 (ja) * 1988-03-10 1996-03-06 富士写真フイルム株式会社 自動焦点調整装置
JP2881790B2 (ja) * 1988-12-29 1999-04-12 株式会社ニコン 焦点検出装置
DE3928549A1 (de) * 1989-06-14 1990-12-20 Gert Wagner Autofocussystem fuer fotoapparate
DE3943534A1 (de) * 1989-06-14 1991-04-25 Gert Wagner Fotoapparat mit einem spot-lichtmesssystem mit einem manuell frei verschiebbaren messfeld
EP0411665B1 (en) * 1989-08-04 1995-12-20 Canon Kabushiki Kaisha Display device
JPH03100535A (ja) * 1989-09-13 1991-04-25 Minolta Camera Co Ltd カメラのピント検出用光電変換装置
EP0438140B1 (en) * 1990-01-17 1996-05-29 Canon Kabushiki Kaisha Focus detecting device in a camera
DE69131852T2 (de) * 1990-01-25 2000-06-15 Canon K.K., Tokio/Tokyo Fokussiergerät
US5189460A (en) * 1990-01-30 1993-02-23 Canon Kabushiki Kaisha Camera detecting luminance from a plurality of areas
EP0441380B1 (en) * 1990-02-08 1996-09-11 Canon Kabushiki Kaisha Image pick-up device
JPH0636087B2 (ja) * 1990-04-26 1994-05-11 旭光学工業株式会社 ファインダ装置およびファインダ装置を備えたカメラ
JPH08248303A (ja) * 1995-03-07 1996-09-27 Minolta Co Ltd 焦点検出装置
DE19710726C2 (de) * 1996-03-15 2003-06-05 Pentax Corp Automatisch fokussierbares Vermessungsinstrument
JP3338322B2 (ja) * 1997-02-25 2002-10-28 三洋電機株式会社 オートフォーカスカメラ
TW480727B (en) * 2000-01-11 2002-03-21 Semiconductor Energy Laboratro Semiconductor display device
US8144146B2 (en) 2004-05-21 2012-03-27 Semiconductor Energy Laboratory Co., Ltd. Display device and electronic device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227774B (de) * 1964-03-28 1966-10-27 Agfa Ag Fotografische Kamera mit einer das Oberteil abdeckenden Kappe
JPS5539809B2 (cg-RX-API-DMAC7.html) * 1971-10-29 1980-10-14
US4047187A (en) * 1974-04-01 1977-09-06 Canon Kabushiki Kaisha System for exposure measurement and/or focus detection by means of image senser
JPS5926934B2 (ja) * 1975-09-26 1984-07-02 ミノルタ株式会社 Ｔｔｌ測光式露出制御カメラ
JPS5451556A (en) * 1977-09-29 1979-04-23 Canon Inc Distance measuring apparatus
JPS5926011B2 (ja) * 1978-01-13 1984-06-23 キヤノン株式会社 情報設定ダイヤルの誤操作防止装置
JPS5548605A (en) * 1978-10-05 1980-04-07 Olympus Optical Co Ltd Distance measuring device
JPS5564218A (en) * 1978-11-07 1980-05-14 Olympus Optical Co Ltd Focus detector
JPS55111921A (en) * 1979-02-14 1980-08-29 Asahi Optical Co Ltd Focus detector of camera
US4246476A (en) * 1979-04-12 1981-01-20 Honeywell Inc. Automatic focusing apparatus for use with a plurality of lenses

Also Published As

Publication number Publication date
DE3211234C2 (de) 1984-01-05
JPS57161708A (en) 1982-10-05
US4483602A (en) 1984-11-20
DE3211234A1 (de) 1982-10-14

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