JPS5632126A - Ttl type focus detector for lens interchangeable type camera - Google Patents

Ttl type focus detector for lens interchangeable type camera

Info

Publication number
JPS5632126A
JPS5632126A JP10772879A JP10772879A JPS5632126A JP S5632126 A JPS5632126 A JP S5632126A JP 10772879 A JP10772879 A JP 10772879A JP 10772879 A JP10772879 A JP 10772879A JP S5632126 A JPS5632126 A JP S5632126A
Authority
JP
Japan
Prior art keywords
taking lens
focal plane
lens
type
focus detector
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
Application number
JP10772879A
Other languages
English (en)
Inventor
Takashi Kawabata
Tokuichi Tsunekawa
Mitsuya Hosoe
Takao Kinoshita
Shinji Sakai
Tatsuya Taguchi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP10772879A priority Critical patent/JPS5632126A/ja
Priority to US06/179,548 priority patent/US4346970A/en
Priority to DE19803031813 priority patent/DE3031813A1/de
Publication of JPS5632126A publication Critical patent/JPS5632126A/ja
Pending 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
    • G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane
    • G02B7/346—Systems for automatic generation of focusing signals using different areas in a pupil plane using horizontal and vertical areas in the pupil plane, i.e. wide area autofocusing
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP10772879A 1979-08-24 1979-08-24 Ttl type focus detector for lens interchangeable type camera Pending JPS5632126A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP10772879A JPS5632126A (en) 1979-08-24 1979-08-24 Ttl type focus detector for lens interchangeable type camera
US06/179,548 US4346970A (en) 1979-08-24 1980-08-19 Focus detecting device
DE19803031813 DE3031813A1 (de) 1979-08-24 1980-08-22 Scharfeinstellungs-ermittlungsvorrichtung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10772879A JPS5632126A (en) 1979-08-24 1979-08-24 Ttl type focus detector for lens interchangeable type camera

Publications (1)

Publication Number Publication Date
JPS5632126A true JPS5632126A (en) 1981-04-01

Family

ID=14466435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10772879A Pending JPS5632126A (en) 1979-08-24 1979-08-24 Ttl type focus detector for lens interchangeable type camera

Country Status (3)

Country Link
US (1) US4346970A (ja)
JP (1) JPS5632126A (ja)
DE (1) DE3031813A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532420A (en) * 1981-12-09 1985-07-30 Olympus Optical Co., Ltd. Focus detector with characteristic point detection
WO1991011742A1 (en) * 1990-01-30 1991-08-08 Nikon Corporation Focus detecting device
US5422701A (en) * 1990-01-30 1995-06-06 Nikon Corporation Focus detection apparatus
JP2007133087A (ja) * 2005-11-09 2007-05-31 Nikon Corp 焦点検出装置、光学システムおよび焦点検出方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5650315A (en) * 1979-10-01 1981-05-07 Canon Inc Focus detecting method and device
US4309603A (en) * 1979-10-17 1982-01-05 Honeywell Inc. Auto focus system
AU554186B2 (en) * 1981-10-26 1986-08-14 Sony Corporation Apparatus for detecting distance to an object
DE3331264A1 (de) * 1982-08-30 1984-03-01 Canon K.K., Tokyo Schaerfeermittlungsvorrichtung
DD210359A1 (de) * 1982-09-29 1984-06-06 Pentacon Dresden Veb Anordnung zur automatischen scharfeinstellung fotografischer kameras
US4959677A (en) * 1986-10-01 1990-09-25 Canon Kabushiki Kaisha Device for detecting the focus adjusted state of an objecting lens
JPS63131111A (ja) * 1986-11-20 1988-06-03 Minolta Camera Co Ltd カメラの焦点検出装置
GB2200010B (en) * 1987-01-12 1991-10-16 Canon Kk Focus detection apparatus for camera
US4903065A (en) * 1987-05-15 1990-02-20 Minolta Camera Kabushiki Kaisha Focus condition detecting device
JPH03214133A (ja) * 1990-01-18 1991-09-19 Nikon Corp 焦点検出装置
US5327192A (en) * 1991-05-20 1994-07-05 Asahi Kogaku Kogyo Kabushiki Kaisha Focus detecting apparatus
JP2004191629A (ja) * 2002-12-11 2004-07-08 Canon Inc 焦点検出装置
JP5458475B2 (ja) * 2007-04-18 2014-04-02 株式会社ニコン 焦点検出装置および撮像装置
JP5191168B2 (ja) * 2007-06-11 2013-04-24 株式会社ニコン 焦点検出装置および撮像装置
DE102016009475B4 (de) * 2016-08-05 2019-06-19 Primes GmbH Meßtechnik für die Produktion mit Laserstrahlung Strahlleistungsmessung mit Aufweitung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2225557A1 (de) * 1971-06-23 1973-03-15 Hauser Raimund Entfernungsmesser
DE2260474C3 (de) * 1972-12-11 1981-10-08 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Verfahren und Einrichtung zur Scharfeinstellung eines Objektivs
DE2609877A1 (de) * 1976-03-10 1977-09-15 Leitz Ernst Gmbh Optische anordnung zur benutzung von sensoren
US4265520A (en) * 1977-11-28 1981-05-05 Asahi Kogaku Kogyo Kabushiki Kaisha Focus detecting device in single lens reflex camera
DE2756954A1 (de) * 1977-12-21 1979-06-28 Leitz Ernst Gmbh Optisch-elektronische fokussiereinrichtung
DE2801393A1 (de) * 1978-01-13 1979-07-19 Agfa Gevaert Ag Fokussiervorrichtung
JPS54145133A (en) * 1978-05-02 1979-11-13 Asahi Optical Co Ltd Focus detector
US4185191A (en) * 1978-06-05 1980-01-22 Honeywell Inc. Range determination system
JPS5545031A (en) * 1978-09-27 1980-03-29 Nippon Kogaku Kk <Nikon> Focus state detector
US4414470A (en) * 1979-02-08 1983-11-08 Ricoh Company, Ltd. Pupil divisional focusing position detection apparatus using lenticula lens
US4246476A (en) * 1979-04-12 1981-01-20 Honeywell Inc. Automatic focusing apparatus for use with a plurality of lenses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532420A (en) * 1981-12-09 1985-07-30 Olympus Optical Co., Ltd. Focus detector with characteristic point detection
WO1991011742A1 (en) * 1990-01-30 1991-08-08 Nikon Corporation Focus detecting device
US5422701A (en) * 1990-01-30 1995-06-06 Nikon Corporation Focus detection apparatus
JP2007133087A (ja) * 2005-11-09 2007-05-31 Nikon Corp 焦点検出装置、光学システムおよび焦点検出方法

Also Published As

Publication number Publication date
US4346970A (en) 1982-08-31
DE3031813A1 (de) 1981-03-12
DE3031813C2 (ja) 1990-06-13

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