JPS5697325A - Focus detecting method of camera - Google Patents

Focus detecting method of camera

Info

Publication number
JPS5697325A
JPS5697325A JP17296379A JP17296379A JPS5697325A JP S5697325 A JPS5697325 A JP S5697325A JP 17296379 A JP17296379 A JP 17296379A JP 17296379 A JP17296379 A JP 17296379A JP S5697325 A JPS5697325 A JP S5697325A
Authority
JP
Japan
Prior art keywords
outputs
circuit
focus
sensor
driving circuit
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
JP17296379A
Other languages
English (en)
Other versions
JPS6214805B2 (ja
Inventor
Kazuo Nakamura
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP17296379A priority Critical patent/JPS5697325A/ja
Priority to US06/218,132 priority patent/US4394569A/en
Priority to GB8041060A priority patent/GB2069790B/en
Priority to DE3049397A priority patent/DE3049397C2/de
Priority to FR8027698A priority patent/FR2472766A1/fr
Publication of JPS5697325A publication Critical patent/JPS5697325A/ja
Publication of JPS6214805B2 publication Critical patent/JPS6214805B2/ja
Priority to US07/050,275 priority patent/USRE32652E/en
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/16—Beam splitting or combining systems used as aids for focusing
    • 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
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/305—Systems for automatic generation of focusing signals using parallactic triangle with a base line using a scanner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP17296379A 1979-12-29 1979-12-29 Focus detecting method of camera Granted JPS5697325A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP17296379A JPS5697325A (en) 1979-12-29 1979-12-29 Focus detecting method of camera
US06/218,132 US4394569A (en) 1979-12-29 1980-12-19 Focus detecting method and apparatus
GB8041060A GB2069790B (en) 1979-12-29 1980-12-22 Device and method for automatically focusing a lens of a camera or the like
DE3049397A DE3049397C2 (de) 1979-12-29 1980-12-29 Automatische Scharfeinstellvorrichtung für eine Kamera
FR8027698A FR2472766A1 (fr) 1979-12-29 1980-12-29 Procede et dispositif de detection de mise au point pour appareil de prise de vues notamment
US07/050,275 USRE32652E (en) 1979-12-29 1987-05-13 Focus detecting method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17296379A JPS5697325A (en) 1979-12-29 1979-12-29 Focus detecting method of camera

Publications (2)

Publication Number Publication Date
JPS5697325A true JPS5697325A (en) 1981-08-06
JPS6214805B2 JPS6214805B2 (ja) 1987-04-03

Family

ID=15951598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17296379A Granted JPS5697325A (en) 1979-12-29 1979-12-29 Focus detecting method of camera

Country Status (5)

Country Link
US (2) US4394569A (ja)
JP (1) JPS5697325A (ja)
DE (1) DE3049397C2 (ja)
FR (1) FR2472766A1 (ja)
GB (1) GB2069790B (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58100109A (ja) * 1981-12-09 1983-06-14 Olympus Optical Co Ltd 焦点検出装置
JPS59102204A (ja) * 1982-12-06 1984-06-13 Canon Inc 焦点調節装置
US4631394A (en) * 1982-10-25 1986-12-23 Olympus Optical Co., Ltd. Focusing device for optical systems
JPS62133408A (ja) * 1985-12-05 1987-06-16 Canon Inc 焦点検出方式
JP3108697B2 (ja) * 1991-04-25 2000-11-13 旭光学工業株式会社 焦点検出装置
DE19710753C2 (de) * 1996-03-15 2000-11-23 Asahi Optical Co Ltd Automatische Fokussiereinrichtung
DE19710722C2 (de) * 1996-03-15 2003-06-05 Pentax Corp Automatische Fokussiereinrichtung für ein Fernrohr
DE19710726C2 (de) * 1996-03-15 2003-06-05 Pentax Corp Automatisch fokussierbares Vermessungsinstrument
DE19710752C2 (de) * 1996-03-15 2003-06-05 Pentax Corp Fokussiereinrichtung
US5877892A (en) * 1996-04-01 1999-03-02 Asahi Seimitsu Kabushiki Kaisha Focus detecting apparatus for a telescope system
US5936736A (en) * 1996-09-30 1999-08-10 Asahi Seimitsu Kabushiki Kaisha Focusing method and apparatus for a surveying instrument having an AF function, and arrangement of an AF beam splitting optical system therein

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083056A (en) * 1975-09-09 1978-04-04 Asahi Kogaku Kogyo Kabushiki Kaisha Focus detecting device for single-lens reflex cameras
JPS5914723B2 (ja) * 1976-05-22 1984-04-05 旭光学工業株式会社 一眼レフカメラの焦点検出装置
JPS53110823A (en) * 1977-03-10 1978-09-27 Ricoh Co Ltd Optical information processor
JPS53166637U (ja) * 1977-06-02 1978-12-27
FR2396325A1 (fr) * 1977-07-01 1979-01-26 Olympus Optical Co Dispositif de mise au point automatique d'une image
DE2847368A1 (de) * 1977-11-02 1979-05-03 Canon Kk Kamera mit automatischer scharfeinstellvorrichtung
US4265520A (en) * 1977-11-28 1981-05-05 Asahi Kogaku Kogyo Kabushiki Kaisha Focus detecting device in single lens reflex camera
JPS5557809A (en) * 1978-10-24 1980-04-30 Olympus Optical Co Ltd Focusing detection system
US4254330A (en) * 1979-09-13 1981-03-03 Honeywell Inc. Low frequency enhancement range finding equipment

Also Published As

Publication number Publication date
FR2472766A1 (fr) 1981-07-03
GB2069790B (en) 1984-09-26
JPS6214805B2 (ja) 1987-04-03
DE3049397A1 (de) 1981-09-17
DE3049397C2 (de) 1983-10-13
FR2472766B1 (ja) 1985-03-01
USRE32652E (en) 1988-04-26
US4394569A (en) 1983-07-19
GB2069790A (en) 1981-08-26

Similar Documents

Publication Publication Date Title
JPS5426721A (en) Trimming information recording camera
JPS5315131A (en) Detecting method for sharpness of objective image
JPS5385452A (en) Range finder
JPS5697325A (en) Focus detecting method of camera
JPS5295221A (en) Detector for focusing
JPS55155337A (en) Focus adjuster
JPS5428133A (en) Optical path extension device with focus detection function
JPS53141030A (en) Camera provided with focused point detector
JPS52147430A (en) Focus detection device
JPS5266445A (en) Zoom lens
JPS5257825A (en) Automatic focus control device
JPS5387217A (en) Focusing device
JPS52138924A (en) Focal detector
JPS5332728A (en) Focus control device for camera
JPS52113750A (en) Scanning optical system having beam detecting optics for information
JPS547323A (en) Optical system for detecting point of focus
JPS53135216A (en) Read-multipliction varying method in solid scanning system
JPS54161928A (en) Focus detector
JPS5332730A (en) Camera with photo-electric focalization detector
JPS542630A (en) Character read system
JPS52143824A (en) Search device for micro=fiche
JPS5722211A (en) Focusing detecting system
JPS5280026A (en) Focus detection means
JPS51137426A (en) Image rotating device
JPS51150330A (en) Automatic focusing adjustable device