GB1448424A - Focus detecting apparatus - Google Patents

Focus detecting apparatus

Info

Publication number
GB1448424A
GB1448424A GB3012574A GB3012574A GB1448424A GB 1448424 A GB1448424 A GB 1448424A GB 3012574 A GB3012574 A GB 3012574A GB 3012574 A GB3012574 A GB 3012574A GB 1448424 A GB1448424 A GB 1448424A
Authority
GB
United Kingdom
Prior art keywords
detectors
lens
july
scene
sum
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
Application number
GB3012574A
Other languages
English (en)
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.)
Honeywell Inc
Original Assignee
Honeywell 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 Honeywell Inc filed Critical Honeywell Inc
Publication of GB1448424A publication Critical patent/GB1448424A/en
Expired 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
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Measurement Of Optical Distance (AREA)
GB3012574A 1973-07-09 1974-07-08 Focus detecting apparatus Expired GB1448424A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37780973A 1973-07-09 1973-07-09

Publications (1)

Publication Number Publication Date
GB1448424A true GB1448424A (en) 1976-09-08

Family

ID=23490601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3012574A Expired GB1448424A (en) 1973-07-09 1974-07-08 Focus detecting apparatus

Country Status (4)

Country Link
JP (1) JPS5812561B2 (enrdf_load_stackoverflow)
CA (1) CA1007906A (enrdf_load_stackoverflow)
GB (1) GB1448424A (enrdf_load_stackoverflow)
HK (1) HK29579A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455297A1 (fr) * 1979-04-23 1980-11-21 Hoya Corp Jumelles a dispositif de mise au point automatique
FR2478829A1 (fr) * 1980-03-21 1981-09-25 Hoya Corp Jumelles optiques a mecanisme de mise au point automatique
GB2147762A (en) * 1983-10-10 1985-05-15 Audim Sa An artifical binocular vision system
GB2176963A (en) * 1985-06-05 1987-01-07 Plessey Co Plc Locating power source for rail vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598709A (en) * 1979-01-20 1980-07-28 Nippon Kogaku Kk <Nikon> Focusing detector
JPS61209412A (ja) * 1986-01-20 1986-09-17 Nippon Kogaku Kk <Nikon> 合焦検出装置
DE19538280C2 (de) * 1995-10-16 2003-04-03 Stoll & Co H Fadenführerarm mit Fadenleitorganen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928884B2 (ja) * 1972-12-27 1984-07-17 キヤノン株式会社 距離検出方式

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455297A1 (fr) * 1979-04-23 1980-11-21 Hoya Corp Jumelles a dispositif de mise au point automatique
FR2478829A1 (fr) * 1980-03-21 1981-09-25 Hoya Corp Jumelles optiques a mecanisme de mise au point automatique
GB2147762A (en) * 1983-10-10 1985-05-15 Audim Sa An artifical binocular vision system
GB2176963A (en) * 1985-06-05 1987-01-07 Plessey Co Plc Locating power source for rail vehicle

Also Published As

Publication number Publication date
JPS5039543A (enrdf_load_stackoverflow) 1975-04-11
JPS5812561B2 (ja) 1983-03-09
CA1007906A (en) 1977-04-05
HK29579A (en) 1979-05-11

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19940707