JPH0228508Y2 - - Google Patents

Info

Publication number
JPH0228508Y2
JPH0228508Y2 JP1981013220U JP1322081U JPH0228508Y2 JP H0228508 Y2 JPH0228508 Y2 JP H0228508Y2 JP 1981013220 U JP1981013220 U JP 1981013220U JP 1322081 U JP1322081 U JP 1322081U JP H0228508 Y2 JPH0228508 Y2 JP H0228508Y2
Authority
JP
Japan
Prior art keywords
focus detection
focus
subject
brightness
detection section
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
JP1981013220U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57130324U (en]
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 filed Critical
Priority to JP1981013220U priority Critical patent/JPH0228508Y2/ja
Priority to US06/339,660 priority patent/US4408854A/en
Publication of JPS57130324U publication Critical patent/JPS57130324U/ja
Application granted granted Critical
Publication of JPH0228508Y2 publication Critical patent/JPH0228508Y2/ja
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)
  • Focusing (AREA)
JP1981013220U 1981-02-03 1981-02-03 Expired JPH0228508Y2 (en])

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1981013220U JPH0228508Y2 (en]) 1981-02-03 1981-02-03
US06/339,660 US4408854A (en) 1981-02-03 1982-01-15 Automatic focus detecting apparatus of a camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981013220U JPH0228508Y2 (en]) 1981-02-03 1981-02-03

Publications (2)

Publication Number Publication Date
JPS57130324U JPS57130324U (en]) 1982-08-13
JPH0228508Y2 true JPH0228508Y2 (en]) 1990-07-31

Family

ID=11827084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981013220U Expired JPH0228508Y2 (en]) 1981-02-03 1981-02-03

Country Status (2)

Country Link
US (1) US4408854A (en])
JP (1) JPH0228508Y2 (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132735A (ja) * 1982-02-03 1983-08-08 Canon Inc カメラ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967056A (en) * 1973-02-26 1976-06-29 Minolta Camera Kabushiki Kaisha Automatic focusing apparatus
JPS5662220A (en) * 1979-10-26 1981-05-28 Canon Inc Unstable operation preventing system of automatic focus detector
JPS5788415A (en) * 1980-11-21 1982-06-02 Mamiya Koki Kk Automatic focusing control device

Also Published As

Publication number Publication date
US4408854A (en) 1983-10-11
JPS57130324U (en]) 1982-08-13

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