JPS52129521A - Automatic focusing device - Google Patents

Automatic focusing device

Info

Publication number
JPS52129521A
JPS52129521A JP4639576A JP4639576A JPS52129521A JP S52129521 A JPS52129521 A JP S52129521A JP 4639576 A JP4639576 A JP 4639576A JP 4639576 A JP4639576 A JP 4639576A JP S52129521 A JPS52129521 A JP S52129521A
Authority
JP
Japan
Prior art keywords
automatic focusing
focusing device
automatic
focusing
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
JP4639576A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5619616B2 (fr
Inventor
Tadao Isono
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.)
Bell and Howell Japan
Original Assignee
Bell and Howell Japan
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 Bell and Howell Japan filed Critical Bell and Howell Japan
Priority to JP4639576A priority Critical patent/JPS52129521A/ja
Priority to DE19772717605 priority patent/DE2717605A1/de
Priority to US05/789,477 priority patent/US4123765A/en
Priority to AT285577A priority patent/AT370246B/de
Priority to GB1701677A priority patent/GB1555418A/en
Priority to FR7712440A priority patent/FR2349169A1/fr
Publication of JPS52129521A publication Critical patent/JPS52129521A/ja
Publication of JPS5619616B2 publication Critical patent/JPS5619616B2/ja
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
    • G02B7/305—Systems for automatic generation of focusing signals using parallactic triangle with a base line using a scanner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Facsimile Scanning Arrangements (AREA)
JP4639576A 1976-04-23 1976-04-23 Automatic focusing device Granted JPS52129521A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP4639576A JPS52129521A (en) 1976-04-23 1976-04-23 Automatic focusing device
DE19772717605 DE2717605A1 (de) 1976-04-23 1977-04-20 Einstellvorrichtung zur automatischen fokussierung
US05/789,477 US4123765A (en) 1976-04-23 1977-04-21 Automatic focus adjusting device
AT285577A AT370246B (de) 1976-04-23 1977-04-22 Einstellvorrichtung zur automatischen fokussierung
GB1701677A GB1555418A (en) 1976-04-23 1977-04-25 Automatic focus adjustin device
FR7712440A FR2349169A1 (fr) 1976-04-23 1977-04-25 Dispositif automatique de reglage de mise au point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4639576A JPS52129521A (en) 1976-04-23 1976-04-23 Automatic focusing device

Publications (2)

Publication Number Publication Date
JPS52129521A true JPS52129521A (en) 1977-10-31
JPS5619616B2 JPS5619616B2 (fr) 1981-05-08

Family

ID=12745947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4639576A Granted JPS52129521A (en) 1976-04-23 1976-04-23 Automatic focusing device

Country Status (5)

Country Link
JP (1) JPS52129521A (fr)
AT (1) AT370246B (fr)
DE (1) DE2717605A1 (fr)
FR (1) FR2349169A1 (fr)
GB (1) GB1555418A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186300A (en) * 1977-11-30 1980-01-29 Sankyo Kogaku Kogyo Kabushiki Kaisha Focus detector
FR2410835A1 (fr) * 1977-12-02 1979-06-29 Sankyo Kogaku Kogyo Kk Dispositif de mise au point automatique, notamment pour les appareils de prise de vues

Also Published As

Publication number Publication date
FR2349169A1 (fr) 1977-11-18
DE2717605A1 (de) 1977-11-10
GB1555418A (en) 1979-11-07
JPS5619616B2 (fr) 1981-05-08
AT370246B (de) 1983-03-10
ATA285577A (de) 1982-07-15

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