DE3884685D1 - Phasendifferenzdetektor. - Google Patents

Phasendifferenzdetektor.

Info

Publication number
DE3884685D1
DE3884685D1 DE88110890T DE3884685T DE3884685D1 DE 3884685 D1 DE3884685 D1 DE 3884685D1 DE 88110890 T DE88110890 T DE 88110890T DE 3884685 T DE3884685 T DE 3884685T DE 3884685 D1 DE3884685 D1 DE 3884685D1
Authority
DE
Germany
Prior art keywords
phase difference
difference detector
detector
phase
difference
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
DE88110890T
Other languages
English (en)
Other versions
DE3884685T2 (de
Inventor
Takashi Miida
Nozomu Ozaki
Shigenori Baba
Kunimitsu Takasaka
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of DE3884685D1 publication Critical patent/DE3884685D1/de
Application granted granted Critical
Publication of DE3884685T2 publication Critical patent/DE3884685T2/de
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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
DE88110890T 1987-07-07 1988-07-07 Phasendifferenzdetektor. Expired - Fee Related DE3884685T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62167906A JPH0810297B2 (ja) 1987-07-07 1987-07-07 位相差検出装置

Publications (2)

Publication Number Publication Date
DE3884685D1 true DE3884685D1 (de) 1993-11-11
DE3884685T2 DE3884685T2 (de) 1994-01-27

Family

ID=15858242

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88110890T Expired - Fee Related DE3884685T2 (de) 1987-07-07 1988-07-07 Phasendifferenzdetektor.

Country Status (4)

Country Link
US (1) US5008696A (de)
EP (1) EP0298486B1 (de)
JP (1) JPH0810297B2 (de)
DE (1) DE3884685T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2614137B2 (ja) * 1990-05-30 1997-05-28 富士写真フイルム株式会社 位相差検出装置
GB2255870B (en) * 1991-05-15 1995-11-01 Asahi Optical Co Ltd Automatic focusing apparatus
JP3832441B2 (ja) 2002-04-08 2006-10-11 松下電工株式会社 強度変調光を用いた空間情報の検出装置
US7461790B2 (en) * 2006-04-04 2008-12-09 Datalogic Scanning, Inc. Data reader and methods for imaging targets exposed to high intensity illumination

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51142318A (en) * 1975-05-20 1976-12-07 Asahi Optical Co Ltd Focus adjusting device for optical systems
JPS5385454A (en) * 1977-01-06 1978-07-27 Canon Inc Distance detecting method
DE2801383A1 (de) * 1978-01-13 1979-07-19 Agfa Gevaert Ag Fotografische kamera mit einer fokussiervorrichtung
JPS54161355A (en) * 1978-06-09 1979-12-20 Minolta Camera Co Ltd Automatic range finder
JPS558102A (en) * 1978-07-03 1980-01-21 Olympus Optical Co Ltd Picture signal process circuit
US4470676A (en) * 1978-07-28 1984-09-11 Canon Kabushiki Kaisha Focus detecting device
JPS55111921A (en) * 1979-02-14 1980-08-29 Asahi Optical Co Ltd Focus detector of camera
JPS55115023A (en) * 1979-02-28 1980-09-04 Canon Inc Distance detector and focus control system utilizing this
DE2936491A1 (de) * 1979-09-10 1981-05-21 Siemens AG, 1000 Berlin und 8000 München Mit einem belichtungsmessteil versehene schaltung zur sensorgesteuerten entfernungsmessung
JPS57161839A (en) * 1981-03-31 1982-10-05 Canon Inc Distance measuring device of camera
JPS59208513A (ja) * 1983-05-12 1984-11-26 Canon Inc 焦点検出装置
US4709138A (en) * 1984-02-09 1987-11-24 Canon Kabushiki Kaisha Apparatus for detecting shake of image of object

Also Published As

Publication number Publication date
JPS6413110A (en) 1989-01-18
JPH0810297B2 (ja) 1996-01-31
EP0298486A2 (de) 1989-01-11
EP0298486B1 (de) 1993-10-06
DE3884685T2 (de) 1994-01-27
EP0298486A3 (en) 1989-06-14
US5008696A (en) 1991-04-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee