FR2684197B1 - Dispositif de mise au point automatique. - Google Patents

Dispositif de mise au point automatique.

Info

Publication number
FR2684197B1
FR2684197B1 FR9212522A FR9212522A FR2684197B1 FR 2684197 B1 FR2684197 B1 FR 2684197B1 FR 9212522 A FR9212522 A FR 9212522A FR 9212522 A FR9212522 A FR 9212522A FR 2684197 B1 FR2684197 B1 FR 2684197B1
Authority
FR
France
Prior art keywords
automatic focusing
focusing device
automatic
focusing
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
FR9212522A
Other languages
English (en)
Other versions
FR2684197A1 (fr
Inventor
Nakata Masahiro
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
Priority claimed from JP20660591A external-priority patent/JP3140500B2/ja
Priority claimed from JP20660691A external-priority patent/JP3222497B2/ja
Priority claimed from JP20660991A external-priority patent/JP3193404B2/ja
Priority claimed from JP20660891A external-priority patent/JP3140501B2/ja
Priority claimed from FR9205919A external-priority patent/FR2676552B1/fr
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2684197A1 publication Critical patent/FR2684197A1/fr
Application granted granted Critical
Publication of FR2684197B1 publication Critical patent/FR2684197B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
FR9212522A 1991-05-15 1992-10-20 Dispositif de mise au point automatique. Expired - Fee Related FR2684197B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP20660591A JP3140500B2 (ja) 1991-05-15 1991-05-15 焦点検出装置
JP20660691A JP3222497B2 (ja) 1991-05-15 1991-05-15 自動焦点装置
JP20660991A JP3193404B2 (ja) 1991-05-15 1991-05-15 カメラの自動焦点装置
JP20660791 1991-05-15
JP20660891A JP3140501B2 (ja) 1991-05-15 1991-05-15 自動焦点調節装置
FR9205919A FR2676552B1 (fr) 1991-05-15 1992-05-15 Dispositif de mise au point automatique.

Publications (2)

Publication Number Publication Date
FR2684197A1 FR2684197A1 (fr) 1993-05-28
FR2684197B1 true FR2684197B1 (fr) 1995-11-03

Family

ID=27546405

Family Applications (2)

Application Number Title Priority Date Filing Date
FR9212521A Expired - Fee Related FR2684196B1 (fr) 1991-05-15 1992-10-20 Dispositif de detection de mise au point.
FR9212522A Expired - Fee Related FR2684197B1 (fr) 1991-05-15 1992-10-20 Dispositif de mise au point automatique.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR9212521A Expired - Fee Related FR2684196B1 (fr) 1991-05-15 1992-10-20 Dispositif de detection de mise au point.

Country Status (1)

Country Link
FR (2) FR2684196B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859416A (ja) * 1981-10-06 1983-04-08 Olympus Optical Co Ltd 合焦検出方法
US4537487A (en) * 1983-09-01 1985-08-27 Minolta Camera Kabushiki Kaisha Automatic focus control system with backlash correcting arrangement
JPH0766099B2 (ja) * 1985-01-24 1995-07-19 ミノルタ株式会社 自動焦点調節装置
US4969006A (en) * 1986-03-15 1990-11-06 Minolta Camera Kabushiki Kaisha Automatic focus control device for use in a camera system
EP0347042B1 (fr) * 1988-05-13 1995-01-25 Nikon Corporation Dispositif de mise au point automatique
JPH07118785B2 (ja) * 1989-10-27 1995-12-18 三菱電機株式会社 コントラスト検出装置およびこれを用いたオートフォーカス装置

Also Published As

Publication number Publication date
FR2684196B1 (fr) 1995-11-03
FR2684197A1 (fr) 1993-05-28
FR2684196A1 (fr) 1993-05-28

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20080131