DE2410681A1 - Automatische fokussiervorrichtung - Google Patents

Automatische fokussiervorrichtung

Info

Publication number
DE2410681A1
DE2410681A1 DE2410681A DE2410681A DE2410681A1 DE 2410681 A1 DE2410681 A1 DE 2410681A1 DE 2410681 A DE2410681 A DE 2410681A DE 2410681 A DE2410681 A DE 2410681A DE 2410681 A1 DE2410681 A1 DE 2410681A1
Authority
DE
Germany
Prior art keywords
lens
automatic focusing
optical scanning
operational amplifier
light
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.)
Ceased
Application number
DE2410681A
Other languages
German (de)
English (en)
Inventor
Peter Dipl Ing Dr Lermann
Alois Rieder
Stefan Vogt
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Priority to DE2410681A priority Critical patent/DE2410681A1/de
Priority to AT89575A priority patent/AT353095B/de
Priority to CH248275A priority patent/CH580824A5/xx
Priority to US05/554,318 priority patent/US3988747A/en
Priority to JP1975030108U priority patent/JPS572967Y2/ja
Publication of DE2410681A1 publication Critical patent/DE2410681A1/de
Ceased 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)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
DE2410681A 1974-03-06 1974-03-06 Automatische fokussiervorrichtung Ceased DE2410681A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2410681A DE2410681A1 (de) 1974-03-06 1974-03-06 Automatische fokussiervorrichtung
AT89575A AT353095B (de) 1974-03-06 1975-02-06 Automatische fokussiervorrichtung
CH248275A CH580824A5 (en:Method) 1974-03-06 1975-02-27
US05/554,318 US3988747A (en) 1974-03-06 1975-02-28 Automatic focussing system for photographic cameras
JP1975030108U JPS572967Y2 (en:Method) 1974-03-06 1975-03-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2410681A DE2410681A1 (de) 1974-03-06 1974-03-06 Automatische fokussiervorrichtung

Publications (1)

Publication Number Publication Date
DE2410681A1 true DE2410681A1 (de) 1975-09-11

Family

ID=5909246

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2410681A Ceased DE2410681A1 (de) 1974-03-06 1974-03-06 Automatische fokussiervorrichtung

Country Status (5)

Country Link
US (1) US3988747A (en:Method)
JP (1) JPS572967Y2 (en:Method)
AT (1) AT353095B (en:Method)
CH (1) CH580824A5 (en:Method)
DE (1) DE2410681A1 (en:Method)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815150A1 (de) * 1978-04-07 1979-10-18 Agfa Gevaert Ag Fokussiervorrichtung fuer fotografische oder kinematografische kameras
US4344686A (en) 1977-10-19 1982-08-17 Agfa-Gevaert Aktiengesellschaft Photographic camera with state-of-focus indication

Families Citing this family (11)

* 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
JPS5616574Y2 (en:Method) * 1976-03-30 1981-04-17
JPS53123125A (en) * 1977-04-04 1978-10-27 Fuji Photo Film Co Ltd Focal point detecting device
US4152060A (en) * 1977-08-10 1979-05-01 Polaroid Corporation Epicyclic electromechanically actuated lens drive
JPS54140532A (en) 1978-04-23 1979-10-31 Canon Inc Automatic focus adjustor
JPS5553304A (en) * 1978-10-16 1980-04-18 Olympus Optical Co Ltd Focus detector
GB2027881B (en) * 1978-07-19 1983-04-27 Universal Pioneer Corp In-focus detecting device
DE2832044A1 (de) * 1978-07-21 1980-01-31 Agfa Gevaert Ag Fokussiervorrichtung fuer fotografische oder kinematografische kameras
US4357083A (en) * 1980-10-06 1982-11-02 Polaroid Corporation Method and apparatus using weighted range signal for controlling photographic functions
US4502773A (en) * 1983-01-31 1985-03-05 Polaroid Corporation Two zone infrared ranging system
DE3325042A1 (de) * 1983-07-12 1984-02-23 Kodak Ag, 7000 Stuttgart Selbstfokussiervorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610934A (en) * 1969-08-22 1971-10-05 Century Geophysical Corp Automatic focusing system utilizing means for alternately directing light over two paths having slightly different lengths
JPS5625648B2 (en:Method) * 1973-04-11 1981-06-13
US3860935A (en) * 1973-12-19 1975-01-14 Honeywell Inc Auto focus camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344686A (en) 1977-10-19 1982-08-17 Agfa-Gevaert Aktiengesellschaft Photographic camera with state-of-focus indication
DE2815150A1 (de) * 1978-04-07 1979-10-18 Agfa Gevaert Ag Fokussiervorrichtung fuer fotografische oder kinematografische kameras

Also Published As

Publication number Publication date
ATA89575A (de) 1979-03-15
US3988747A (en) 1976-10-26
JPS572967Y2 (en:Method) 1982-01-19
JPS5193238U (en:Method) 1976-07-26
AT353095B (de) 1979-10-25
CH580824A5 (en:Method) 1976-10-15

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Legal Events

Date Code Title Description
8125 Change of the main classification

Ipc: G02B 7/11

8126 Change of the secondary classification

Ipc: G03B 3/10

8110 Request for examination paragraph 44
8131 Rejection