DE69119981T2 - Vorrichtung zur ermittlung der bildschärfe - Google Patents

Vorrichtung zur ermittlung der bildschärfe

Info

Publication number
DE69119981T2
DE69119981T2 DE69119981T DE69119981T DE69119981T2 DE 69119981 T2 DE69119981 T2 DE 69119981T2 DE 69119981 T DE69119981 T DE 69119981T DE 69119981 T DE69119981 T DE 69119981T DE 69119981 T2 DE69119981 T2 DE 69119981T2
Authority
DE
Germany
Prior art keywords
sharpness
determining
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 - Lifetime
Application number
DE69119981T
Other languages
English (en)
Other versions
DE69119981D1 (de
Inventor
Ken Utagawa
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.)
Nikon Corp
Original Assignee
Nikon Corp
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 Nikon Corp filed Critical Nikon Corp
Publication of DE69119981D1 publication Critical patent/DE69119981D1/de
Application granted granted Critical
Publication of DE69119981T2 publication Critical patent/DE69119981T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
DE69119981T 1990-01-30 1991-01-29 Vorrichtung zur ermittlung der bildschärfe Expired - Lifetime DE69119981T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005890 1990-01-30
PCT/JP1991/000101 WO1991011742A1 (en) 1990-01-30 1991-01-29 Focus detecting device

Publications (2)

Publication Number Publication Date
DE69119981D1 DE69119981D1 (de) 1996-07-11
DE69119981T2 true DE69119981T2 (de) 1996-12-19

Family

ID=12016482

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69119981T Expired - Lifetime DE69119981T2 (de) 1990-01-30 1991-01-29 Vorrichtung zur ermittlung der bildschärfe

Country Status (3)

Country Link
EP (1) EP0465671B1 (de)
DE (1) DE69119981T2 (de)
WO (1) WO1991011742A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298331B (en) * 1995-02-22 2000-02-16 Asahi Optical Co Ltd Distance measuring apparatus
JP5458475B2 (ja) * 2007-04-18 2014-04-02 株式会社ニコン 焦点検出装置および撮像装置
JP5635584B2 (ja) 2012-12-20 2014-12-03 オリンパスイメージング株式会社 撮影機器、カメラシステム及びフォーカス制御のための情報を算出する方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928886B2 (ja) * 1979-02-28 1984-07-17 株式会社リコー 自動焦点検出装置
JPS5632126A (en) * 1979-08-24 1981-04-01 Canon Inc Ttl type focus detector for lens interchangeable type camera
JPS57125912A (en) * 1981-01-30 1982-08-05 Nippon Kogaku Kk <Nikon> Ttl type focus detector for camera
JPS58194007A (ja) * 1982-05-10 1983-11-11 Olympus Optical Co Ltd 合焦検出装置
JPS63246712A (ja) * 1986-05-16 1988-10-13 Minolta Camera Co Ltd 焦点検出装置
JPS63163418A (ja) * 1986-12-26 1988-07-06 Olympus Optical Co Ltd 焦点検出装置
JPS63172207A (ja) * 1987-01-12 1988-07-15 Canon Inc 焦点検出装置
JPS63172209A (ja) * 1987-01-12 1988-07-15 Minolta Camera Co Ltd 自動焦点検出装置
JPS63286830A (ja) * 1987-05-19 1988-11-24 Minolta Camera Co Ltd レンズ交換式焦点検出システム及び交換レンズ
JP2921867B2 (ja) * 1988-07-20 1999-07-19 旭光学工業株式会社 カメラの焦点検出装置

Also Published As

Publication number Publication date
WO1991011742A1 (en) 1991-08-08
EP0465671A1 (de) 1992-01-15
EP0465671A4 (en) 1992-11-25
DE69119981D1 (de) 1996-07-11
EP0465671B1 (de) 1996-06-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition