FR2402222A1 - Procede de detection de la mise au point d'un dispositif optique - Google Patents

Procede de detection de la mise au point d'un dispositif optique

Info

Publication number
FR2402222A1
FR2402222A1 FR7825332A FR7825332A FR2402222A1 FR 2402222 A1 FR2402222 A1 FR 2402222A1 FR 7825332 A FR7825332 A FR 7825332A FR 7825332 A FR7825332 A FR 7825332A FR 2402222 A1 FR2402222 A1 FR 2402222A1
Authority
FR
France
Prior art keywords
focus
optical device
elements
detection
group
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
FR7825332A
Other languages
English (en)
French (fr)
Other versions
FR2402222B1 (OSRAM
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 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
Priority claimed from JP10471377A external-priority patent/JPS5439126A/ja
Priority claimed from JP4586778A external-priority patent/JPS54138427A/ja
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Publication of FR2402222A1 publication Critical patent/FR2402222A1/fr
Application granted granted Critical
Publication of FR2402222B1 publication Critical patent/FR2402222B1/fr
Granted 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)
  • Focusing (AREA)
FR7825332A 1977-09-02 1978-09-01 Procede de detection de la mise au point d'un dispositif optique Granted FR2402222A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10471377A JPS5439126A (en) 1977-09-02 1977-09-02 Automatic focusing method
JP4586778A JPS54138427A (en) 1978-04-20 1978-04-20 Focus detecting method

Publications (2)

Publication Number Publication Date
FR2402222A1 true FR2402222A1 (fr) 1979-03-30
FR2402222B1 FR2402222B1 (OSRAM) 1983-05-27

Family

ID=26385961

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825332A Granted FR2402222A1 (fr) 1977-09-02 1978-09-01 Procede de detection de la mise au point d'un dispositif optique

Country Status (3)

Country Link
DE (1) DE2838121B2 (OSRAM)
FR (1) FR2402222A1 (OSRAM)
GB (1) GB2003692B (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017726A1 (de) * 1979-03-20 1980-10-29 Kernforschungszentrum Karlsruhe Gmbh Verfahren und Einrichtung zur automatischen Scharfeinstellung eines Bildes

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5529878A (en) * 1978-08-24 1980-03-03 Asahi Optical Co Ltd Focus detector of camera
JPS5589819A (en) 1978-12-28 1980-07-07 Asahi Optical Co Ltd Focus detector of camera
US4561749A (en) * 1983-02-02 1985-12-31 Nippon Kogaku K.K. Focus detection apparatus
US4687914A (en) * 1983-04-01 1987-08-18 Canon Kabushiki Kaisha Distance measuring device comprising a two sectioned sensor, each section having a plurality of sensing areas
JPS60101513A (ja) * 1983-11-08 1985-06-05 Canon Inc 焦点検出装置
DE10033483C1 (de) 2000-07-10 2002-01-03 Zsp Geodaetische Sys Gmbh Verfahren zur Autofokussierung für Fernrohre von Vermessungsgeräten

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514230A1 (de) * 1974-04-01 1975-10-09 Canon Kk System zur belichtungsmessung und/oder zur scharfstellermittlung mit hilfe eines bildsensors
DE2551070A1 (de) * 1974-11-13 1976-05-26 Canon Kk Verfahren zur ermittlung der schaerfe einer objekt-abbildung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514230A1 (de) * 1974-04-01 1975-10-09 Canon Kk System zur belichtungsmessung und/oder zur scharfstellermittlung mit hilfe eines bildsensors
DE2559559A1 (de) * 1974-04-01 1977-06-16 Canon Kk Kamera mit belichtungsmessystem
DE2551070A1 (de) * 1974-11-13 1976-05-26 Canon Kk Verfahren zur ermittlung der schaerfe einer objekt-abbildung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017726A1 (de) * 1979-03-20 1980-10-29 Kernforschungszentrum Karlsruhe Gmbh Verfahren und Einrichtung zur automatischen Scharfeinstellung eines Bildes

Also Published As

Publication number Publication date
DE2838121B2 (de) 1980-01-17
FR2402222B1 (OSRAM) 1983-05-27
GB2003692A (en) 1979-03-14
DE2838121A1 (de) 1979-03-22
DE2838121C3 (OSRAM) 1980-09-11
GB2003692B (en) 1982-08-11

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Legal Events

Date Code Title Description
ST Notification of lapse