DE3433697A1 - Automatische scharfeinstelleinrichtung - Google Patents

Automatische scharfeinstelleinrichtung

Info

Publication number
DE3433697A1
DE3433697A1 DE19843433697 DE3433697A DE3433697A1 DE 3433697 A1 DE3433697 A1 DE 3433697A1 DE 19843433697 DE19843433697 DE 19843433697 DE 3433697 A DE3433697 A DE 3433697A DE 3433697 A1 DE3433697 A1 DE 3433697A1
Authority
DE
Germany
Prior art keywords
distance measuring
signal
distance
circuit
active
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
DE19843433697
Other languages
German (de)
English (en)
Other versions
DE3433697C2 (en:Method
Inventor
Masamichi Machida Tokio/Tokyo Toyama
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE3433697A1 publication Critical patent/DE3433697A1/de
Application granted granted Critical
Publication of DE3433697C2 publication Critical patent/DE3433697C2/de
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
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Measurement Of Optical Distance (AREA)
DE19843433697 1983-09-13 1984-09-13 Automatische scharfeinstelleinrichtung Granted DE3433697A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58170386A JPS6060616A (ja) 1983-09-13 1983-09-13 自動焦点調節装置

Publications (2)

Publication Number Publication Date
DE3433697A1 true DE3433697A1 (de) 1985-04-18
DE3433697C2 DE3433697C2 (en:Method) 1992-04-09

Family

ID=15903967

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843433697 Granted DE3433697A1 (de) 1983-09-13 1984-09-13 Automatische scharfeinstelleinrichtung

Country Status (3)

Country Link
US (1) US4518242A (en:Method)
JP (1) JPS6060616A (en:Method)
DE (1) DE3433697A1 (en:Method)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281085A3 (en) * 1987-03-05 1989-01-18 Honeywell Inc. Proximity sensing apparatus
EP0437924A3 (en) * 1990-01-17 1992-03-04 Chinon Kabushiki Kaisha Automatic focusing system and incorporation within cameras
WO1994015252A1 (en) * 1992-12-28 1994-07-07 Eastman Kodak Company Automatic focus and indirect illumination camera system
EP0654690A3 (en) * 1993-10-25 1995-11-02 Canon Kk Active automatic focusing device.

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS604912A (ja) * 1983-06-22 1985-01-11 Asahi Optical Co Ltd 一眼レフカメラのｔｔｌ焦点検出装置
JPS62210414A (ja) * 1986-03-12 1987-09-16 Minolta Camera Co Ltd 焦点検出装置
US4992817A (en) * 1988-08-06 1991-02-12 Canon Kabushiki Kaisha Focus detecting device switching between passive and active detection
JPH0313073A (ja) * 1989-06-09 1991-01-22 Canon Inc 自動焦点調節装置
JP2958464B2 (ja) * 1990-01-17 1999-10-06 チノン株式会社 自動焦点調節装置
US5589910A (en) * 1993-12-15 1996-12-31 Fuji Photo Optical Co., Ltd. Apparatus for measuring a distance
US5652926A (en) * 1993-12-15 1997-07-29 Fuji Photo Optical Co., Ltd. Distance measuring apparatus
JPH07199039A (ja) * 1994-01-10 1995-08-04 Minolta Co Ltd Ａｆカメラ
JPH08334678A (ja) * 1995-06-09 1996-12-17 Fuji Photo Optical Co Ltd 測距装置
JP3120956B2 (ja) * 1995-06-14 2000-12-25 富士写真光機株式会社 測距装置
US5745806A (en) * 1995-06-15 1998-04-28 Fuji Photo Optical Co., Ltd. Distance measuring apparatus
JP3614935B2 (ja) * 1995-06-20 2005-01-26 オリンパス株式会社 三次元画像計測装置
JP3767745B2 (ja) * 2002-06-17 2006-04-19 株式会社リコー オートフォーカス装置および電子カメラ
JP4775930B2 (ja) * 2004-02-20 2011-09-21 キヤノン株式会社 レンズ制御装置、撮像装置およびレンズ制御方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933077A1 (de) * 1978-09-04 1980-03-13 Hauser Raimund Fokussiereinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS549054A (en) * 1977-06-22 1979-01-23 Toshiba Corp Cold storage
JPS55111929A (en) * 1979-02-21 1980-08-29 Ricoh Co Ltd Automatic focusing device
US4423936A (en) * 1982-07-26 1984-01-03 Polaroid Corporation Photographic exposure control system and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933077A1 (de) * 1978-09-04 1980-03-13 Hauser Raimund Fokussiereinrichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281085A3 (en) * 1987-03-05 1989-01-18 Honeywell Inc. Proximity sensing apparatus
EP0437924A3 (en) * 1990-01-17 1992-03-04 Chinon Kabushiki Kaisha Automatic focusing system and incorporation within cameras
WO1994015252A1 (en) * 1992-12-28 1994-07-07 Eastman Kodak Company Automatic focus and indirect illumination camera system
EP0654690A3 (en) * 1993-10-25 1995-11-02 Canon Kk Active automatic focusing device.
US5613167A (en) * 1993-10-25 1997-03-18 Canon Kabushiki Kaisha Active-type automatic focusing apparatus

Also Published As

Publication number Publication date
JPH0376722B2 (en:Method) 1991-12-06
JPS6060616A (ja) 1985-04-08
US4518242A (en) 1985-05-21
DE3433697C2 (en:Method) 1992-04-09

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition