JPS57161708A - Focusing detector having variable visual field of detection - Google Patents

Focusing detector having variable visual field of detection

Info

Publication number
JPS57161708A
JPS57161708A JP56046086A JP4608681A JPS57161708A JP S57161708 A JPS57161708 A JP S57161708A JP 56046086 A JP56046086 A JP 56046086A JP 4608681 A JP4608681 A JP 4608681A JP S57161708 A JPS57161708 A JP S57161708A
Authority
JP
Japan
Prior art keywords
elements
photodetecting
display
selectively
focusing
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.)
Granted
Application number
JP56046086A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0368362B2 (enExample
Inventor
Masahiro Aoki
Kenichi Oikami
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 Corp
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 Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
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 true JPS57161708A (en) 1982-10-05
JPH0368362B2 JPH0368362B2 (enExample) 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 (enExample)
JP (1) JPS57161708A (enExample)
DE (1) DE3211234C2 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01230012A (ja) * 1988-03-10 1989-09-13 Fuji Photo Film Co Ltd 自動焦点調整装置
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
US6552748B1 (en) 1997-02-25 2003-04-22 Sanyo Electric Co., Ltd. Camera which automatically and properly focuses in situations with relatively low luminance foreground objects and high luminance background objects

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4636624A (en) * 1983-01-10 1987-01-13 Minolta Camera Kabushiki Kaisha Focus detecting device for use with cameras
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
DE3844877C2 (de) * 1987-09-11 1996-03-07 Canon Kk Einrichtung zur automatischen Anpassung der Meßbereichsgröße
JP2881790B2 (ja) * 1988-12-29 1999-04-12 株式会社ニコン 焦点検出装置
DE3943534A1 (de) * 1989-06-14 1991-04-25 Gert Wagner Fotoapparat mit einem spot-lichtmesssystem mit einem manuell frei verschiebbaren messfeld
DE3928549A1 (de) * 1989-06-14 1990-12-20 Gert Wagner Autofocussystem fuer fotoapparate
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
DE69119795T2 (de) * 1990-01-17 1997-01-09 Canon Kk Scharfeinstellungsgerät in einer Kamera
DE69126715T2 (de) * 1990-01-25 1998-01-15 Canon Kk Fokussierungs-Erfassungsvorrichtung
US5189460A (en) * 1990-01-30 1993-02-23 Canon Kabushiki Kaisha Camera detecting luminance from a plurality of areas
DE69121930T2 (de) * 1990-02-08 1997-04-03 Canon Kk Bildaufnahmevorrichtung
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
TW480727B (en) * 2000-01-11 2002-03-21 Semiconductor Energy Laboratro Semiconductor display device
WO2005114630A1 (en) 2004-05-21 2005-12-01 Semiconductor Energy Laboratory Co., Ltd. Display device and electronic device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4852230A (enExample) * 1971-10-29 1973-07-23
JPS5564218A (en) * 1978-11-07 1980-05-14 Olympus Optical Co Ltd Focus detector

Family Cites Families (8)

* 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
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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4852230A (enExample) * 1971-10-29 1973-07-23
JPS5564218A (en) * 1978-11-07 1980-05-14 Olympus Optical Co Ltd Focus detector

Cited By (4)

* 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
JPH01230012A (ja) * 1988-03-10 1989-09-13 Fuji Photo Film Co Ltd 自動焦点調整装置
US6552748B1 (en) 1997-02-25 2003-04-22 Sanyo Electric Co., Ltd. Camera which automatically and properly focuses in situations with relatively low luminance foreground objects and high luminance background objects
KR100513606B1 (ko) * 1997-02-25 2005-11-23 산요덴키가부시키가이샤 오토포커스카메라

Also Published As

Publication number Publication date
JPH0368362B2 (enExample) 1991-10-28
US4483602A (en) 1984-11-20
DE3211234C2 (de) 1984-01-05
DE3211234A1 (de) 1982-10-14

Similar Documents

Publication Publication Date Title
JPS57161708A (en) Focusing detector having variable visual field of detection
JPS53110823A (en) Optical information processor
JPS57158820A (en) Method for focusing detection
JPS5532038A (en) Distance detector
JPS57144409A (en) Distance detector
JPS5748703A (en) Distance detector
JPS55110229A (en) Automatic focus indicator of camera
JPS5589819A (en) Focus detector of camera
JPS5445127A (en) Focus detector by photo sensor alley
JPS5665121A (en) Distance measuring and photometric device of camera
JPS55106421A (en) Focusing detector
JPS5734511A (en) Photographing lens device having focusing function
JPS53114310A (en) Paper leaf detector
JPS56147578A (en) Correction system of mixed color for solidstate color image pickup device
JPS57133411A (en) Detecting device for focus of camera
JPS5629110A (en) Distance measurement unit
JPS56150713A (en) Focusing detection
JPS5651705A (en) Focus detector
JPS57116310A (en) Focus detecting system
JPS57161711A (en) Focusing detector displaying detection position
JPS5377544A (en) Optical detector
JPS53141031A (en) Camera having focusing-state detecting element
JPS57161710A (en) Focusing detecting method
JPS57136886A (en) Semiconductor device
JPS51128226A (en) Bar-code reader