JPS5439126A - Automatic focusing method - Google Patents

Automatic focusing method

Info

Publication number
JPS5439126A
JPS5439126A JP10471377A JP10471377A JPS5439126A JP S5439126 A JPS5439126 A JP S5439126A JP 10471377 A JP10471377 A JP 10471377A JP 10471377 A JP10471377 A JP 10471377A JP S5439126 A JPS5439126 A JP S5439126A
Authority
JP
Japan
Prior art keywords
focus
automatic focusing
focusing method
response
light receiving
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.)
Pending
Application number
JP10471377A
Other languages
Japanese (ja)
Inventor
Masahiro Aoki
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP10471377A priority Critical patent/JPS5439126A/en
Priority to GB7834512A priority patent/GB2003692B/en
Priority to DE19782838121 priority patent/DE2838121B2/en
Priority to FR7825332A priority patent/FR2402222A1/en
Publication of JPS5439126A publication Critical patent/JPS5439126A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To accomplish the focus adjustment in a satisfactory manner either under a condition out of focus or under a condition in teh vicinity of focus by roughly focusing in response with the brightness signals of a group of light receiving elements widely spaced from one another and by finely focusing in response to the signals of a group of light receiving elements narrowly spaced from one another.
COPYRIGHT: (C)1979,JPO&Japio
JP10471377A 1977-09-02 1977-09-02 Automatic focusing method Pending JPS5439126A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10471377A JPS5439126A (en) 1977-09-02 1977-09-02 Automatic focusing method
GB7834512A GB2003692B (en) 1977-09-02 1978-08-24 Method for detecting a focalisation or in-focussed-condition of an optical system
DE19782838121 DE2838121B2 (en) 1977-09-02 1978-08-31 Method for focusing an optic
FR7825332A FR2402222A1 (en) 1977-09-02 1978-09-01 METHOD OF DETECTION OF THE FOCUS OF AN OPTICAL DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10471377A JPS5439126A (en) 1977-09-02 1977-09-02 Automatic focusing method

Publications (1)

Publication Number Publication Date
JPS5439126A true JPS5439126A (en) 1979-03-26

Family

ID=14388108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10471377A Pending JPS5439126A (en) 1977-09-02 1977-09-02 Automatic focusing method

Country Status (1)

Country Link
JP (1) JPS5439126A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103403A (en) * 1975-03-07 1976-09-13 Hitachi Maxell JIKIKIRO KUTAI
US4523829A (en) * 1983-03-11 1985-06-18 Fuji Photo Optical Co., Ltd. Automatic focus detecting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103403A (en) * 1975-03-07 1976-09-13 Hitachi Maxell JIKIKIRO KUTAI
US4523829A (en) * 1983-03-11 1985-06-18 Fuji Photo Optical Co., Ltd. Automatic focus detecting device

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