GB2197765B - Distance distribution measuring method - Google Patents

Distance distribution measuring method

Info

Publication number
GB2197765B
GB2197765B GB8725485A GB8725485A GB2197765B GB 2197765 B GB2197765 B GB 2197765B GB 8725485 A GB8725485 A GB 8725485A GB 8725485 A GB8725485 A GB 8725485A GB 2197765 B GB2197765 B GB 2197765B
Authority
GB
United Kingdom
Prior art keywords
measuring method
distribution measuring
distance distribution
distance
measuring
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
GB8725485A
Other languages
English (en)
Other versions
GB2197765A (en
GB8725485D0 (en
Inventor
Kanehiro Sorimachi
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
Priority claimed from JP25857986A external-priority patent/JPH0799332B2/ja
Priority claimed from JP61258580A external-priority patent/JPH0827185B2/ja
Priority claimed from JP61287778A external-priority patent/JPH0827186B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB8725485D0 publication Critical patent/GB8725485D0/en
Publication of GB2197765A publication Critical patent/GB2197765A/en
Application granted granted Critical
Publication of GB2197765B publication Critical patent/GB2197765B/en
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
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Measurement Of Optical Distance (AREA)
  • Automatic Focus Adjustment (AREA)
GB8725485A 1986-10-31 1987-10-30 Distance distribution measuring method Expired - Lifetime GB2197765B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP25857986A JPH0799332B2 (ja) 1986-10-31 1986-10-31 輻輳合せ機構
JP61258580A JPH0827185B2 (ja) 1986-10-31 1986-10-31 距離分布測定方法
JP61287778A JPH0827186B2 (ja) 1986-12-04 1986-12-04 距離分布測定方法及びこれに用いる輻輳合せ機構

Publications (3)

Publication Number Publication Date
GB8725485D0 GB8725485D0 (en) 1987-12-02
GB2197765A GB2197765A (en) 1988-05-25
GB2197765B true GB2197765B (en) 1991-06-26

Family

ID=27334737

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8725485A Expired - Lifetime GB2197765B (en) 1986-10-31 1987-10-30 Distance distribution measuring method

Country Status (4)

Country Link
US (1) US4989827A (https=)
DE (1) DE3736883A1 (https=)
FR (1) FR2606139B1 (https=)
GB (1) GB2197765B (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9117443D0 (en) * 1991-08-13 1992-05-27 British Aerospace Optical apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2090498A (en) * 1980-11-21 1982-07-07 Hitachi Electronics Autofocus system
GB2104334A (en) * 1981-08-17 1983-03-02 Nat Res Corp Automatic focusing device
US4527053A (en) * 1981-06-30 1985-07-02 Canon Kabushiki Kaisha Focus detecting device with relative movement detection
GB2152780A (en) * 1983-11-15 1985-08-07 Gec Avionics Distance measurement
GB2160734A (en) * 1982-07-22 1985-12-24 Beltronics Inc Automatic focusing for television cameras

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298259A (en) * 1979-08-27 1981-11-03 Asaki Kogaku Kogyo Kabushiki Kaisha Focus detecting device for photographic camera
US4254330A (en) * 1979-09-13 1981-03-03 Honeywell Inc. Low frequency enhancement range finding equipment
JPS5793208A (en) * 1980-12-01 1982-06-10 Nippon Kogaku Kk <Nikon> Optical system of distance measuring apparatus
JPS5888212A (ja) * 1981-11-18 1983-05-26 トヨタ自動車株式会社 軸部品への嵌合部品の固定方法
JPS5915208A (ja) * 1982-06-17 1984-01-26 Olympus Optical Co Ltd 合焦検出装置
US4589770A (en) * 1982-10-25 1986-05-20 The Boeing Company Electro-optical ranging apparatus having scanning circuitry and servoloop processor for resolving separation of images on photoelectric detector arrays
US4601053A (en) * 1983-11-21 1986-07-15 Grumman Aerospace Corporation Automatic TV ranging system
JPS6188212A (ja) * 1984-10-05 1986-05-06 Canon Inc 物体情報処理装置
JPS61112915A (ja) * 1984-11-08 1986-05-30 Canon Inc 距離測定方法
JPS61116611A (ja) * 1984-11-12 1986-06-04 Canon Inc 距離測定方法
JPS61182516A (ja) * 1985-02-09 1986-08-15 Canon Inc 距離測定方法
JPH0727107B2 (ja) * 1985-07-26 1995-03-29 ミノルタ株式会社 相関像比較装置及びそれを用いた焦点検出装置及び測距装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2090498A (en) * 1980-11-21 1982-07-07 Hitachi Electronics Autofocus system
US4527053A (en) * 1981-06-30 1985-07-02 Canon Kabushiki Kaisha Focus detecting device with relative movement detection
GB2104334A (en) * 1981-08-17 1983-03-02 Nat Res Corp Automatic focusing device
GB2160734A (en) * 1982-07-22 1985-12-24 Beltronics Inc Automatic focusing for television cameras
GB2152780A (en) * 1983-11-15 1985-08-07 Gec Avionics Distance measurement

Also Published As

Publication number Publication date
FR2606139A1 (fr) 1988-05-06
GB2197765A (en) 1988-05-25
DE3736883A1 (de) 1988-05-11
FR2606139B1 (fr) 1994-05-13
DE3736883C2 (https=) 1992-03-12
GB8725485D0 (en) 1987-12-02
US4989827A (en) 1991-02-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20041030