JPS5422826A - Automatic focus locating system - Google Patents

Automatic focus locating system

Info

Publication number
JPS5422826A
JPS5422826A JP8780377A JP8780377A JPS5422826A JP S5422826 A JPS5422826 A JP S5422826A JP 8780377 A JP8780377 A JP 8780377A JP 8780377 A JP8780377 A JP 8780377A JP S5422826 A JPS5422826 A JP S5422826A
Authority
JP
Japan
Prior art keywords
automatic focus
locating system
focus locating
signals
focus
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
JP8780377A
Other languages
Japanese (ja)
Other versions
JPS6052405B2 (en
Inventor
Kiyonobu Endo
Tetsuo Kuwayama
Nobuyoshi Tanaka
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 JP8780377A priority Critical patent/JPS6052405B2/en
Publication of JPS5422826A publication Critical patent/JPS5422826A/en
Publication of JPS6052405B2 publication Critical patent/JPS6052405B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)

Abstract

PURPOSE: To easily detect the conditions in and out of focus of a photographic lens by making use of the phase difference signals between the signals from a plurality of optical detectors and some of those signals having passed through a delay circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP8780377A 1977-07-21 1977-07-21 Automatic focus detection method Expired JPS6052405B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8780377A JPS6052405B2 (en) 1977-07-21 1977-07-21 Automatic focus detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8780377A JPS6052405B2 (en) 1977-07-21 1977-07-21 Automatic focus detection method

Publications (2)

Publication Number Publication Date
JPS5422826A true JPS5422826A (en) 1979-02-21
JPS6052405B2 JPS6052405B2 (en) 1985-11-19

Family

ID=13925131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8780377A Expired JPS6052405B2 (en) 1977-07-21 1977-07-21 Automatic focus detection method

Country Status (1)

Country Link
JP (1) JPS6052405B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009180778A (en) * 2008-01-29 2009-08-13 Canon Inc Focus detection apparatus and imaging apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009180778A (en) * 2008-01-29 2009-08-13 Canon Inc Focus detection apparatus and imaging apparatus

Also Published As

Publication number Publication date
JPS6052405B2 (en) 1985-11-19

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