JPH0553241B2 - - Google Patents

Info

Publication number
JPH0553241B2
JPH0553241B2 JP58028594A JP2859483A JPH0553241B2 JP H0553241 B2 JPH0553241 B2 JP H0553241B2 JP 58028594 A JP58028594 A JP 58028594A JP 2859483 A JP2859483 A JP 2859483A JP H0553241 B2 JPH0553241 B2 JP H0553241B2
Authority
JP
Japan
Prior art keywords
image
images
image data
contrast
amount
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 - Lifetime
Application number
JP58028594A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59155807A (ja
Inventor
Yoshiaki Horikawa
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 JP2859483A priority Critical patent/JPS59155807A/ja
Priority to DE3406578A priority patent/DE3406578C2/de
Publication of JPS59155807A publication Critical patent/JPS59155807A/ja
Priority to US06/928,730 priority patent/US4740678A/en
Priority to US07/140,537 priority patent/US4833315A/en
Publication of JPH0553241B2 publication Critical patent/JPH0553241B2/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
    • G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP2859483A 1983-02-24 1983-02-24 自動焦点検出装置 Granted JPS59155807A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2859483A JPS59155807A (ja) 1983-02-24 1983-02-24 自動焦点検出装置
DE3406578A DE3406578C2 (de) 1983-02-24 1984-02-21 Automatische Brennpunktermittlungsvorrichtung
US06/928,730 US4740678A (en) 1983-02-24 1986-11-10 Automatic focus detecting device in which two objects images formed through different light paths are converted to photoelectric signals
US07/140,537 US4833315A (en) 1983-02-24 1988-01-04 Automatic focus detecting device in which two object images formed through different light paths are converted to photoelectric signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2859483A JPS59155807A (ja) 1983-02-24 1983-02-24 自動焦点検出装置

Publications (2)

Publication Number Publication Date
JPS59155807A JPS59155807A (ja) 1984-09-05
JPH0553241B2 true JPH0553241B2 (enExample) 1993-08-09

Family

ID=12252913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2859483A Granted JPS59155807A (ja) 1983-02-24 1983-02-24 自動焦点検出装置

Country Status (1)

Country Link
JP (1) JPS59155807A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2712412B2 (ja) * 1988-11-07 1998-02-10 株式会社ニコン 焦点検出装置
JPH07199052A (ja) * 1993-12-28 1995-08-04 Olympus Optical Co Ltd 焦点検出方法および距離測定方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605925B2 (ja) * 1979-11-26 1985-02-14 株式会社リコー 自動焦点検出装置
JPS56101111A (en) * 1980-01-14 1981-08-13 Mamiya Koki Kk Automatic focus adjustment method

Also Published As

Publication number Publication date
JPS59155807A (ja) 1984-09-05

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