JPH0477289B2 - - Google Patents

Info

Publication number
JPH0477289B2
JPH0477289B2 JP58015887A JP1588783A JPH0477289B2 JP H0477289 B2 JPH0477289 B2 JP H0477289B2 JP 58015887 A JP58015887 A JP 58015887A JP 1588783 A JP1588783 A JP 1588783A JP H0477289 B2 JPH0477289 B2 JP H0477289B2
Authority
JP
Japan
Prior art keywords
filter means
spatial frequency
output
focus detection
photoelectric
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
JP58015887A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59142506A (ja
Inventor
Takeshi Utagawa
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.)
Nikon Corp
Original Assignee
Nippon Kogaku KK
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 Nippon Kogaku KK filed Critical Nippon Kogaku KK
Priority to JP1588783A priority Critical patent/JPS59142506A/ja
Priority to US06/575,154 priority patent/US4561749A/en
Publication of JPS59142506A publication Critical patent/JPS59142506A/ja
Publication of JPH0477289B2 publication Critical patent/JPH0477289B2/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
    • G02B7/346—Systems for automatic generation of focusing signals using different areas in a pupil plane using horizontal and vertical areas in the pupil plane, i.e. wide area autofocusing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP1588783A 1983-02-02 1983-02-02 焦点検出装置 Granted JPS59142506A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1588783A JPS59142506A (ja) 1983-02-02 1983-02-02 焦点検出装置
US06/575,154 US4561749A (en) 1983-02-02 1984-01-30 Focus detection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1588783A JPS59142506A (ja) 1983-02-02 1983-02-02 焦点検出装置

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP2024065A Division JPH02244019A (ja) 1990-02-02 1990-02-02 焦点検出装置
JP2024066A Division JPH0646257B2 (ja) 1990-02-02 1990-02-02 焦点検出装置

Publications (2)

Publication Number Publication Date
JPS59142506A JPS59142506A (ja) 1984-08-15
JPH0477289B2 true JPH0477289B2 (en, 2012) 1992-12-08

Family

ID=11901295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1588783A Granted JPS59142506A (ja) 1983-02-02 1983-02-02 焦点検出装置

Country Status (1)

Country Link
JP (1) JPS59142506A (en, 2012)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0762733B2 (ja) * 1985-04-23 1995-07-05 株式会社ニコン 焦点検出装置
JP2572372B2 (ja) * 1985-05-23 1997-01-16 株式会社ニコン 焦点検出装置
JP2554255B2 (ja) * 1987-03-23 1996-11-13 旭光学工業株式会社 フイルタリング装置
JP2770318B2 (ja) * 1988-05-16 1998-07-02 ミノルタ株式会社 自動焦点検出装置
JP2671493B2 (ja) * 1989-05-13 1997-10-29 ミノルタ株式会社 焦点検出装置
JPH02244019A (ja) * 1990-02-02 1990-09-28 Nikon Corp 焦点検出装置
JPH0646257B2 (ja) * 1990-02-02 1994-06-15 株式会社ニコン 焦点検出装置
JP4926993B2 (ja) * 2008-01-29 2012-05-09 キヤノン株式会社 焦点検出装置および撮像装置
JP5481914B2 (ja) * 2008-04-21 2014-04-23 株式会社ニコン 相関演算方法、相関演算装置、焦点検出装置および撮像装置
WO2016080161A1 (ja) * 2014-11-18 2016-05-26 富士フイルム株式会社 合焦制御装置、合焦制御方法、合焦制御プログラム、レンズ装置、撮像装置
JP6415359B2 (ja) * 2015-03-10 2018-10-31 キヤノン株式会社 焦点検出装置、撮像装置、焦点検出方法および焦点検出プログラム
JP7023673B2 (ja) * 2017-11-02 2022-02-22 キヤノン株式会社 焦点調節装置、焦点調節方法、及び撮像装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107312A (ja) * 1982-12-11 1984-06-21 Canon Inc 焦点検出信号処理方法

Also Published As

Publication number Publication date
JPS59142506A (ja) 1984-08-15

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