DE3030635C2 - - Google Patents

Info

Publication number
DE3030635C2
DE3030635C2 DE3030635A DE3030635A DE3030635C2 DE 3030635 C2 DE3030635 C2 DE 3030635C2 DE 3030635 A DE3030635 A DE 3030635A DE 3030635 A DE3030635 A DE 3030635A DE 3030635 C2 DE3030635 C2 DE 3030635C2
Authority
DE
Germany
Prior art keywords
transistor
light
voltage
current
photoelectric
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.)
Expired - Fee Related
Application number
DE3030635A
Other languages
German (de)
English (en)
Other versions
DE3030635A1 (de
Inventor
Motonobu Kawachinagano Osaka Jp Matsuda
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.)
Minolta Co Ltd
Original Assignee
Minolta 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
Priority claimed from JP10479779A external-priority patent/JPS5629111A/ja
Priority claimed from JP10479879A external-priority patent/JPS5629112A/ja
Priority claimed from JP10479679A external-priority patent/JPS5629110A/ja
Application filed by Minolta Co Ltd filed Critical Minolta Co Ltd
Publication of DE3030635A1 publication Critical patent/DE3030635A1/de
Application granted granted Critical
Publication of DE3030635C2 publication Critical patent/DE3030635C2/de
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06Systems determining position data of a target
    • G01S17/46Indirect determination of position data
    • G01S17/48Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Measurement Of Optical Distance (AREA)
  • Focusing (AREA)
DE19803030635 1979-08-16 1980-08-13 Automatischer entfernungsmesser fuer eine kamera Granted DE3030635A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10479779A JPS5629111A (en) 1979-08-16 1979-08-16 Distance measuring unit
JP10479879A JPS5629112A (en) 1979-08-16 1979-08-16 Distance measurement unit
JP10479679A JPS5629110A (en) 1979-08-16 1979-08-16 Distance measurement unit

Publications (2)

Publication Number Publication Date
DE3030635A1 DE3030635A1 (de) 1981-03-26
DE3030635C2 true DE3030635C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-10-11

Family

ID=27310324

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803030635 Granted DE3030635A1 (de) 1979-08-16 1980-08-13 Automatischer entfernungsmesser fuer eine kamera

Country Status (2)

Country Link
US (1) US4288152A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3030635A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57119311A (en) * 1981-01-16 1982-07-24 Canon Inc Compensating circuit for signal detector
JPS57159073A (en) * 1981-03-26 1982-10-01 Minolta Camera Co Ltd Semiconductor position detector
JPS57188004A (en) * 1981-05-14 1982-11-18 Olympus Optical Co Ltd Automatic focusing zoom lens
US4473285A (en) * 1981-11-27 1984-09-25 W. Haking Enterprises Limited Automatic focusing camera
JPS58113807A (ja) * 1981-12-28 1983-07-06 Canon Inc 距離測定装置
US4470681A (en) * 1982-09-07 1984-09-11 Polaroid Corporation Method of and apparatus for detecting range using multiple range readings
US4502773A (en) * 1983-01-31 1985-03-05 Polaroid Corporation Two zone infrared ranging system
JPS6060511A (ja) * 1983-09-14 1985-04-08 Asahi Optical Co Ltd 測距装置
JPS6082915A (ja) * 1983-10-14 1985-05-11 Canon Inc 距離測定装置
JPS60225017A (ja) * 1984-04-24 1985-11-09 Nippon Kogaku Kk <Nikon> 測距装置
JPS6341818A (ja) * 1986-08-06 1988-02-23 Minolta Camera Co Ltd 補助照明装置を備えた自動焦点調節装置
JPH0760209B2 (ja) * 1987-10-15 1995-06-28 キヤノン株式会社 オートフオーカス装置
US5262632A (en) * 1992-05-29 1993-11-16 International Business Machines Corporation Integrated circuit for achieving pattern recognition
FR2756930B1 (fr) * 1996-12-06 1999-01-08 Schneider Electric Sa Cellule photoelectrique a traitement differentiel verrouillable
JP4011686B2 (ja) * 1997-09-30 2007-11-21 セイコープレシジョン株式会社 カメラ用測距装置
US7098648B2 (en) * 2004-03-16 2006-08-29 Qualitau, Inc. Automatic range finder for electric current testing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443502A (en) * 1966-08-23 1969-05-13 Eastman Kodak Co Automatic focusing for cameras
AT301331B (de) * 1968-11-25 1972-08-25 Eumig Einrichtung zur Entfernungsmessung
US3759614A (en) * 1971-02-10 1973-09-18 Eastman Kodak Co Dual photocell range finder apparatus
US4065778A (en) * 1976-06-17 1977-12-27 Eastman Kodak Company Automatic rangefinder and focusing apparatus
JPS5453529A (en) * 1977-10-05 1979-04-26 Minolta Camera Co Ltd Power feed controller of autofocusing camera
US4251144A (en) * 1978-03-08 1981-02-17 Minolta Camera Kabushiki Kaisha Rangefinding system

Also Published As

Publication number Publication date
US4288152A (en) 1981-09-08
DE3030635A1 (de) 1981-03-26

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee