JPS5443374B2 - - Google Patents

Info

Publication number
JPS5443374B2
JPS5443374B2 JP3134272A JP3134272A JPS5443374B2 JP S5443374 B2 JPS5443374 B2 JP S5443374B2 JP 3134272 A JP3134272 A JP 3134272A JP 3134272 A JP3134272 A JP 3134272A JP S5443374 B2 JPS5443374 B2 JP S5443374B2
Authority
JP
Japan
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
Application number
JP3134272A
Other languages
Japanese (ja)
Other versions
JPS4898826A (US07922777-20110412-C00004.png
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 filed Critical
Priority to JP3134272A priority Critical patent/JPS5443374B2/ja
Priority to US344725A priority patent/US3906389A/en
Publication of JPS4898826A publication Critical patent/JPS4898826A/ja
Publication of JPS5443374B2 publication Critical patent/JPS5443374B2/ja
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28Systems for automatic generation of focusing signals
    • G02B7/30Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Manipulation Of Pulses (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP3134272A 1972-03-29 1972-03-29 Expired JPS5443374B2 (US07922777-20110412-C00004.png)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3134272A JPS5443374B2 (US07922777-20110412-C00004.png) 1972-03-29 1972-03-29
US344725A US3906389A (en) 1972-03-29 1973-03-26 Difference amplifier with gain controlled by the sum of the inputs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3134272A JPS5443374B2 (US07922777-20110412-C00004.png) 1972-03-29 1972-03-29

Publications (2)

Publication Number Publication Date
JPS4898826A JPS4898826A (US07922777-20110412-C00004.png) 1973-12-14
JPS5443374B2 true JPS5443374B2 (US07922777-20110412-C00004.png) 1979-12-19

Family

ID=12328545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3134272A Expired JPS5443374B2 (US07922777-20110412-C00004.png) 1972-03-29 1972-03-29

Country Status (2)

Country Link
US (1) US3906389A (US07922777-20110412-C00004.png)
JP (1) JPS5443374B2 (US07922777-20110412-C00004.png)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039824A (en) * 1974-08-08 1977-08-02 Minolta Camera Kabushiki Kaisha Focus detecting photoelectric device
DE2447663C2 (de) * 1974-10-05 1983-01-13 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und Vorrichtung zur automatischen Focussierung eines Objektives auf ein Meßobjekt
US4032934A (en) * 1974-12-26 1977-06-28 Hendrickson Kenneth L Automatic focusing system
DE2619795C3 (de) * 1976-05-05 1978-11-23 Ernst Leitz Wetzlar Gmbh, 6300 Lahn- Wetzlar Verfahren und Anordnungen zur automatischen Parallaxebestimmung
DE2746920A1 (de) * 1977-10-19 1979-04-26 Agfa Gevaert Ag Kamera mit einer entfernungsmessvorrichtung
DE2750735A1 (de) * 1977-11-12 1979-05-17 Agfa Gevaert Ag Fotografische kamera mit einer entfernungsmessvorrichtung
DE2828865C2 (de) * 1978-06-30 1985-02-07 Agfa-Gevaert Ag, 5090 Leverkusen Fokussiervorrichtung für fotografische oder kinematografische Kamera
US4470676A (en) * 1978-07-28 1984-09-11 Canon Kabushiki Kaisha Focus detecting device
JPS56126813A (en) * 1980-03-12 1981-10-05 Canon Inc Incident position detector of luminous flux
US4335942A (en) * 1979-10-26 1982-06-22 Canon Kabushiki Kaisha Camera provided with automatic focus detector
JPS5674208A (en) * 1979-11-21 1981-06-19 Nippon Kogaku Kk <Nikon> Automatic focus adjusting device
JPS56111839A (en) * 1980-02-08 1981-09-03 Fuji Photo Optical Co Ltd Distance detecting mechanism of camera available for use of lens of different focal length
US4317991A (en) * 1980-03-12 1982-03-02 Honeywell Inc. Digital auto focus system utilizing a photodetector array
US4367027A (en) * 1980-03-12 1983-01-04 Honeywell Inc. Active auto focus system improvement
JPS57125910A (en) * 1981-01-30 1982-08-05 Hitachi Ltd Method and device for automatic focusing
US4484069A (en) * 1981-10-15 1984-11-20 St. Regis Paper Company Apparatus and method for sensing distance
JPS5887543A (ja) * 1981-11-19 1983-05-25 Nitto Kogaku Kk カメラの自動測距装置
JPS59101611A (ja) * 1982-12-01 1984-06-12 Chinon Kk 合焦制御装置
JPS59148034A (ja) * 1983-02-14 1984-08-24 Konishiroku Photo Ind Co Ltd カメラの測距装置
US4621292A (en) * 1983-10-19 1986-11-04 Matsushita Electric Industrial Co., Ltd. Automatic focusing device for a video camera
JPS60249112A (ja) * 1984-05-25 1985-12-09 Seiko Koki Kk カメラ用距離検出装置
US4623237A (en) * 1984-07-07 1986-11-18 Canon Kabushiki Kaisha Automatic focusing device
US4701603A (en) * 1985-10-17 1987-10-20 Optical Disc Corporation Focus control system for optical information recorder or player
US4763154A (en) * 1985-12-27 1988-08-09 Ricoh Company, Ltd. Focus detecting device and image signal amplifier circuit therefor
JPS62215913A (ja) * 1986-03-18 1987-09-22 Nippon Kogaku Kk <Nikon> 自動焦点検出回路
US5117118A (en) * 1988-10-19 1992-05-26 Astex Co., Ltd. Photoelectric switch using an integrated circuit with reduced interconnections
JPH021712U (US07922777-20110412-C00004.png) * 1988-11-24 1990-01-08
US5013903A (en) * 1990-02-26 1991-05-07 At&T Bell Laboratories Lightwave receiver having differential input
US5055664A (en) * 1990-08-06 1991-10-08 Eaton Corporation Optical distance measuring system using a position sensitive device and a ramp generator driven light source
US5386263A (en) * 1990-10-20 1995-01-31 Fuji Photo Film Co., Ltd. Method and apparatus for rangefinding
FI98766C (fi) * 1994-01-11 1997-08-11 Vaisala Oy Laite ja menetelmä näkyvyyden ja vallitsevan sään mittaamiseksi
US6756576B1 (en) * 2000-08-30 2004-06-29 Micron Technology, Inc. Imaging system having redundant pixel groupings
US7223957B2 (en) * 2005-04-15 2007-05-29 Rockwell Automation Technologies, Inc. Sensor including circuitry for recovering time-varying information and removing DC offsets

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497717A (en) * 1966-09-29 1970-02-24 Alfred W Barber Analog device for multiplying/dividing using photoconductive means
US3610934A (en) * 1969-08-22 1971-10-05 Century Geophysical Corp Automatic focusing system utilizing means for alternately directing light over two paths having slightly different lengths

Also Published As

Publication number Publication date
US3906389A (en) 1975-09-16
JPS4898826A (US07922777-20110412-C00004.png) 1973-12-14

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