GB1555418A - Automatic focus adjustin device - Google Patents

Automatic focus adjustin device

Info

Publication number
GB1555418A
GB1555418A GB1701677A GB1701677A GB1555418A GB 1555418 A GB1555418 A GB 1555418A GB 1701677 A GB1701677 A GB 1701677A GB 1701677 A GB1701677 A GB 1701677A GB 1555418 A GB1555418 A GB 1555418A
Authority
GB
United Kingdom
Prior art keywords
automatic focus
adjustin
adjustin device
focus
automatic
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
GB1701677A
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.)
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
Publication of GB1555418A publication Critical patent/GB1555418A/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
    • G02B7/30—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)
GB1701677A 1976-04-23 1977-04-25 Automatic focus adjustin device Expired GB1555418A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1555418A true GB1555418A (en) 1979-11-07

Family

ID=12745947

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1701677A Expired GB1555418A (en) 1976-04-23 1977-04-25 Automatic focus adjustin device

Country Status (5)

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

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
AT370246B (de) 1983-03-10
DE2717605A1 (de) 1977-11-10
JPS52129521A (en) 1977-10-31
ATA285577A (de) 1982-07-15
JPS5619616B2 (de) 1981-05-08

Similar Documents

Publication Publication Date Title
GB2000655B (en) Automatic focusing devices
SE7700343L (sv) Automatisk fokuseringsanordning
NL7708200A (nl) Automatische scherpstellingsinrichting.
JPS533399A (en) Automatic exchanging device
JPS5343522A (en) Automatic focusing unit
JPS5396828A (en) Automatic focal point adjusting device
JPS5346028A (en) Automatic focusing device
GB1552257A (en) Automatic door-controlling device
JPS5391730A (en) Automatic focal point adjusting device
JPS544121A (en) Automatic focus device
JPS53131035A (en) Automatic focal point adjusting device
JPS5393826A (en) Automatic focal point adjusting device
JPS533333A (en) Automatic focusing device
NL7703610A (nl) Automatische scherpstellingsinrichting.
JPS539118A (en) Camera with automatic focusing unit
JPS5367424A (en) Automatic focusing device
GB2001501B (en) Automatic focus adjusting device
JPS5317268A (en) Automatic focusing device
JPS55118021A (en) Automatic focusing device
JPS5368221A (en) Automatic focal point adjusting device
JPS5688121A (en) Lowwcontrasttbias automatic focusing device
JPS531098A (en) Automatic operating device
JPS5372617A (en) Automatic focal point adjusting device
GB1555418A (en) Automatic focus adjustin device
JPS5414733A (en) Automatic focus adjusting device

Legal Events

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