FR2707404B1 - Dispositif de détection de mise au point. - Google Patents

Dispositif de détection de mise au point.

Info

Publication number
FR2707404B1
FR2707404B1 FR9408498A FR9408498A FR2707404B1 FR 2707404 B1 FR2707404 B1 FR 2707404B1 FR 9408498 A FR9408498 A FR 9408498A FR 9408498 A FR9408498 A FR 9408498A FR 2707404 B1 FR2707404 B1 FR 2707404B1
Authority
FR
France
Prior art keywords
detection device
focus detection
focus
detection
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
FR9408498A
Other languages
English (en)
Other versions
FR2707404A1 (fr
Inventor
Takayuki Sensui
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
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2707404A1 publication Critical patent/FR2707404A1/fr
Application granted granted Critical
Publication of FR2707404B1 publication Critical patent/FR2707404B1/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
    • G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane
    • G02B7/346—Systems for automatic generation of focusing signals using different areas in a pupil plane using horizontal and vertical areas in the pupil plane, i.e. wide area autofocusing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
FR9408498A 1993-07-08 1994-07-08 Dispositif de détection de mise au point. Expired - Fee Related FR2707404B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16908293 1993-07-08

Publications (2)

Publication Number Publication Date
FR2707404A1 FR2707404A1 (fr) 1995-01-13
FR2707404B1 true FR2707404B1 (fr) 1996-12-27

Family

ID=15879994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9408498A Expired - Fee Related FR2707404B1 (fr) 1993-07-08 1994-07-08 Dispositif de détection de mise au point.

Country Status (4)

Country Link
US (2) US5530236A (fr)
DE (1) DE4424131B4 (fr)
FR (1) FR2707404B1 (fr)
GB (1) GB2279843B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2707404B1 (fr) * 1993-07-08 1996-12-27 Asahi Optical Co Ltd Dispositif de détection de mise au point.
JPH0980300A (ja) * 1995-09-11 1997-03-28 Asahi Optical Co Ltd 自動焦点検出用光学ユニット
US5789735A (en) * 1995-10-16 1998-08-04 Raytheon Company Optical system for reformatting a line image
JPH09265040A (ja) * 1996-03-28 1997-10-07 Minolta Co Ltd 焦点検出装置
US5943514A (en) * 1996-07-19 1999-08-24 Asahi Kogaku Kogyo Kabushiki Kaisha Focusing system
US6128444A (en) * 1998-07-13 2000-10-03 Asahi Kogaku Kogyo Kabushiki Kaisha Multipoint focus detecting apparatus
JP3283235B2 (ja) 1998-09-25 2002-05-20 旭光学工業株式会社 多点焦点検出装置
JP2000121927A (ja) 1998-10-09 2000-04-28 Asahi Optical Co Ltd 焦点検出装置
JP2001124983A (ja) 1999-10-25 2001-05-11 Asahi Optical Co Ltd 多点焦点検出装置
JP2001343580A (ja) 2000-05-31 2001-12-14 Asahi Optical Co Ltd 焦点検出装置
KR100853186B1 (ko) * 2006-12-05 2008-08-20 한국전자통신연구원 다중 개구면 광검출기 및 그 광검출기를 포함한 광신호검출회로
JP5625876B2 (ja) * 2010-01-08 2014-11-19 リコーイメージング株式会社 焦点検出光学系
JP7089719B2 (ja) * 2017-02-07 2022-06-23 ナノフォトン株式会社 分光顕微鏡、及び分光観察方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636627A (en) * 1983-01-17 1987-01-13 Canon Kabushiki Kaisha Focus detecting apparatus
JP2770301B2 (ja) * 1987-05-08 1998-07-02 ミノルタ株式会社 焦点検出用光学装置
US5229807A (en) * 1987-05-08 1993-07-20 Minolta Camera Kabushiki Kaisha Focus detecting device
US4903065A (en) * 1987-05-15 1990-02-20 Minolta Camera Kabushiki Kaisha Focus condition detecting device
JPH07117645B2 (ja) * 1987-12-14 1995-12-18 キヤノン株式会社 焦点検出装置
US5017005A (en) * 1988-03-18 1991-05-21 Asahi Kogaku Kogyo Kabushiki Kaisha Focal point detecting optical apparatus
JP2770316B2 (ja) * 1988-05-13 1998-07-02 ミノルタ株式会社 自動焦点検出装置
US5140359A (en) * 1988-05-16 1992-08-18 Canon Kabushiki Kaisha Multi-point distance measuring apparatus
US5155518A (en) * 1988-08-24 1992-10-13 Nikon Corporation Focus detecting apparatus
JPH0258012A (ja) * 1988-08-24 1990-02-27 Nikon Corp 焦点検出装置
JP3118610B2 (ja) * 1990-09-18 2000-12-18 株式会社リコー 焦点状態検出装置
EP0479550B1 (fr) * 1990-10-01 1998-01-14 Nikon Corporation Dispositif de détection de mise au point
JP3108697B2 (ja) * 1991-04-25 2000-11-13 旭光学工業株式会社 焦点検出装置
FR2676837B1 (fr) * 1991-05-20 1995-02-17 Asahi Optical Co Ltd Appareil de detection de mise au point.
US5206498A (en) * 1991-06-07 1993-04-27 Asahi Kogaku Kogyo Kabushiki Kaisha Focus detecting apparatus having variable power condenser lens
JP3199774B2 (ja) * 1991-06-26 2001-08-20 旭光学工業株式会社 焦点検出装置
JP3213984B2 (ja) * 1991-09-10 2001-10-02 株式会社ニコン 焦点検出装置
JPH05264894A (ja) * 1992-01-22 1993-10-15 Nikon Corp 焦点検出装置
US5420438A (en) * 1992-10-29 1995-05-30 Asahi Kogaku Kogyo Kabushiki Kaisha Focus detecting apparatus including movement of detecting zones
FR2707404B1 (fr) * 1993-07-08 1996-12-27 Asahi Optical Co Ltd Dispositif de détection de mise au point.

Also Published As

Publication number Publication date
DE4424131B4 (de) 2004-08-26
DE4424131A1 (de) 1995-01-12
GB2279843A (en) 1995-01-11
GB2279843B (en) 1998-04-01
US5646393A (en) 1997-07-08
US5530236A (en) 1996-06-25
FR2707404A1 (fr) 1995-01-13
GB9413839D0 (en) 1994-08-24

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20090331