JPS5732407A - Automatic focus adjusting device - Google Patents

Automatic focus adjusting device

Info

Publication number
JPS5732407A
JPS5732407A JP10757580A JP10757580A JPS5732407A JP S5732407 A JPS5732407 A JP S5732407A JP 10757580 A JP10757580 A JP 10757580A JP 10757580 A JP10757580 A JP 10757580A JP S5732407 A JPS5732407 A JP S5732407A
Authority
JP
Japan
Prior art keywords
distance
ring
switch
value
output
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
JP10757580A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6350681B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Toshiichi Ichiyanagi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP10757580A priority Critical patent/JPS5732407A/ja
Priority to US06/287,698 priority patent/US4402586A/en
Publication of JPS5732407A publication Critical patent/JPS5732407A/ja
Publication of JPS6350681B2 publication Critical patent/JPS6350681B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP10757580A 1980-08-04 1980-08-04 Automatic focus adjusting device Granted JPS5732407A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10757580A JPS5732407A (en) 1980-08-04 1980-08-04 Automatic focus adjusting device
US06/287,698 US4402586A (en) 1980-08-04 1981-07-28 Focusing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10757580A JPS5732407A (en) 1980-08-04 1980-08-04 Automatic focus adjusting device

Publications (2)

Publication Number Publication Date
JPS5732407A true JPS5732407A (en) 1982-02-22
JPS6350681B2 JPS6350681B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-10-11

Family

ID=14462644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10757580A Granted JPS5732407A (en) 1980-08-04 1980-08-04 Automatic focus adjusting device

Country Status (1)

Country Link
JP (1) JPS5732407A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61112320U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1984-12-27 1986-07-16
JPS62257841A (ja) * 1986-05-01 1987-11-10 東レ株式会社 積層フイルム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113334A (en) * 1978-02-24 1979-09-04 Nippon Chemical Ind Apparatus for detecting focus point position

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113334A (en) * 1978-02-24 1979-09-04 Nippon Chemical Ind Apparatus for detecting focus point position

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61112320U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1984-12-27 1986-07-16
JPS62257841A (ja) * 1986-05-01 1987-11-10 東レ株式会社 積層フイルム

Also Published As

Publication number Publication date
JPS6350681B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-10-11

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