JPS5535317A - Focus detector of camera - Google Patents

Focus detector of camera

Info

Publication number
JPS5535317A
JPS5535317A JP10735478A JP10735478A JPS5535317A JP S5535317 A JPS5535317 A JP S5535317A JP 10735478 A JP10735478 A JP 10735478A JP 10735478 A JP10735478 A JP 10735478A JP S5535317 A JPS5535317 A JP S5535317A
Authority
JP
Japan
Prior art keywords
circuit
photoelectric elements
sample holding
numberth
outputs
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.)
Pending
Application number
JP10735478A
Other languages
English (en)
Inventor
Harumi Aoki
Yoshio Sawada
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP10735478A priority Critical patent/JPS5535317A/ja
Priority to GB7927958A priority patent/GB2030415B/en
Priority to FR7921448A priority patent/FR2435054A1/fr
Priority to DE19792935303 priority patent/DE2935303C2/de
Publication of JPS5535317A publication Critical patent/JPS5535317A/ja
Pending 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)
JP10735478A 1978-09-01 1978-09-01 Focus detector of camera Pending JPS5535317A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10735478A JPS5535317A (en) 1978-09-01 1978-09-01 Focus detector of camera
GB7927958A GB2030415B (en) 1978-09-01 1979-08-10 Focus detection device
FR7921448A FR2435054A1 (fr) 1978-09-01 1979-08-27 Dispositif de detection de la mise au point pour appareil photographique
DE19792935303 DE2935303C2 (de) 1978-09-01 1979-08-31 Vorrichtung zur Feststellung der Fokussierung eines Objektivs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10735478A JPS5535317A (en) 1978-09-01 1978-09-01 Focus detector of camera

Publications (1)

Publication Number Publication Date
JPS5535317A true JPS5535317A (en) 1980-03-12

Family

ID=14456927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10735478A Pending JPS5535317A (en) 1978-09-01 1978-09-01 Focus detector of camera

Country Status (4)

Country Link
JP (1) JPS5535317A (ja)
DE (1) DE2935303C2 (ja)
FR (1) FR2435054A1 (ja)
GB (1) GB2030415B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5759107A (en) * 1980-09-26 1982-04-09 Hitachi Ltd Method and device for measuring plate thickness
GB2195214B (en) * 1980-12-10 1988-10-26 Emi Ltd Automatic focussing system for an optical system
JPS58189606A (ja) * 1982-04-30 1983-11-05 Fuji Electric Co Ltd 光学器械の自動焦点調整装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906219A (en) * 1973-10-09 1975-09-16 Honeywell Inc Focus detecting apparatus
FR2338504A1 (fr) * 1976-01-15 1977-08-12 Leitz Ernst Gmbh Dispositif pour la determination photo-electrique de la position d'un plan de nettete d'une image
US4132888A (en) * 1976-03-17 1979-01-02 Toshihiro Kondo Device for automatically focusing image
JPS5529878A (en) * 1978-08-24 1980-03-03 Asahi Optical Co Ltd Focus detector of camera

Also Published As

Publication number Publication date
FR2435054B1 (ja) 1983-03-04
FR2435054A1 (fr) 1980-03-28
GB2030415A (en) 1980-04-02
DE2935303C2 (de) 1982-05-19
GB2030415B (en) 1983-03-09
DE2935303A1 (de) 1980-03-13

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