JPS5793307A - Automatic focusing system - Google Patents

Automatic focusing system

Info

Publication number
JPS5793307A
JPS5793307A JP55169828A JP16982880A JPS5793307A JP S5793307 A JPS5793307 A JP S5793307A JP 55169828 A JP55169828 A JP 55169828A JP 16982880 A JP16982880 A JP 16982880A JP S5793307 A JPS5793307 A JP S5793307A
Authority
JP
Japan
Prior art keywords
circuit
lens
auxiliary lens
image
high accuracy
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
JP55169828A
Other languages
English (en)
Inventor
Kenji Kimura
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 JP55169828A priority Critical patent/JPS5793307A/ja
Priority to US06/326,592 priority patent/US4370038A/en
Priority to DE3147758A priority patent/DE3147758C2/de
Publication of JPS5793307A publication Critical patent/JPS5793307A/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
    • G02B7/36—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)
JP55169828A 1980-12-02 1980-12-02 Automatic focusing system Pending JPS5793307A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP55169828A JPS5793307A (en) 1980-12-02 1980-12-02 Automatic focusing system
US06/326,592 US4370038A (en) 1980-12-02 1981-12-02 Automatic focussing system
DE3147758A DE3147758C2 (de) 1980-12-02 1981-12-02 Vorrichtung zum automatischen Scharfstellen eines Kamera-Objektivs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55169828A JPS5793307A (en) 1980-12-02 1980-12-02 Automatic focusing system

Publications (1)

Publication Number Publication Date
JPS5793307A true JPS5793307A (en) 1982-06-10

Family

ID=15893655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55169828A Pending JPS5793307A (en) 1980-12-02 1980-12-02 Automatic focusing system

Country Status (3)

Country Link
US (1) US4370038A (ja)
JP (1) JPS5793307A (ja)
DE (1) DE3147758C2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984963U (ja) * 1982-11-26 1984-06-08 株式会社三協精機製作所 自動合焦装置

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57161813A (en) * 1981-03-31 1982-10-05 Olympus Optical Co Ltd Optical head driver
JPS5887510A (ja) * 1981-11-20 1983-05-25 Nippon Kogaku Kk <Nikon> カメラ用交換レンズ構体
US4484806A (en) * 1982-04-28 1984-11-27 Matsushita Electric Industrial Co., Ltd. Automatic focussing apparatus
JPS5950671A (ja) * 1982-09-16 1984-03-23 Olympus Optical Co Ltd テレビジヨンカメラ等の焦点情報表示方法
JPS59162514A (ja) * 1983-03-08 1984-09-13 Dainippon Screen Mfg Co Ltd 画像走査記録装置における焦点調整方法
US4575764A (en) * 1983-11-07 1986-03-11 Honeywell Inc. Video camera auto focus
JPS61196215A (ja) * 1985-02-26 1986-08-30 Canon Inc 焦点検出装置
DE3628480A1 (de) * 1985-08-23 1987-03-05 Canon Kk Verfahren und vorrichtung zur kompensation einer bewegung eines bildes
US4635124A (en) * 1985-11-26 1987-01-06 Rca Corporation Auxiliary focusing circuit for automatic focusing camera
US4745484A (en) * 1986-07-30 1988-05-17 Drexler Technology Corporation Method and apparatus for stepped imaging in reading data
US4841370A (en) * 1986-11-17 1989-06-20 Sanyo Electric Co., Ltd. Automatic focusing circuit for automatically matching focus in response to video signal
DE3850940T2 (de) * 1987-10-08 1995-02-23 Matsushita Electric Ind Co Ltd Automatische Fokussierungsanlage für eine Videokamera.
US4920420A (en) * 1988-11-10 1990-04-24 Hitachi, Ltd. Automatic focusing system
DE3934744A1 (de) * 1989-10-18 1991-04-25 Krupp Gmbh Verfahren zur beruehrungslosen ermittlung der dicke transparenter werkstoffe und vorrichtung zur durchfuehrung des verfahrens
DE102005028856A1 (de) * 2005-06-22 2007-01-18 Ibak Helmut Hunger Gmbh & Co. Kg Fokussierungseinrichtung für optische Systeme

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256041U (ja) * 1975-10-22 1977-04-22
JPS5449134A (en) * 1977-09-27 1979-04-18 Nippon Chemical Ind Focal plane detecting apparatus of optical system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958826A (ja) * 1972-10-04 1974-06-07
US3917394A (en) * 1973-10-09 1975-11-04 Display Enterprises Inc Automatic component positioning device for optical system
DE2453364C3 (de) * 1973-11-09 1979-02-22 Hitachi, Ltd., Tokio Automatische Fokussiervorrichtung
US4104650A (en) * 1974-08-16 1978-08-01 Canon Kabushiki Kaisha Sharp focus detecting system
US3941996A (en) * 1974-08-27 1976-03-02 Honeywell Inc. Automatic focus apparatus
JPS5172329A (en) * 1974-12-19 1976-06-23 Minolta Camera Kk Jidoshotenkenshutsusochi

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256041U (ja) * 1975-10-22 1977-04-22
JPS5449134A (en) * 1977-09-27 1979-04-18 Nippon Chemical Ind Focal plane detecting apparatus of optical system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984963U (ja) * 1982-11-26 1984-06-08 株式会社三協精機製作所 自動合焦装置

Also Published As

Publication number Publication date
DE3147758A1 (de) 1982-07-01
DE3147758C2 (de) 1986-03-06
US4370038A (en) 1983-01-25

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