JPS5598709A - Focusing detector - Google Patents

Focusing detector

Info

Publication number
JPS5598709A
JPS5598709A JP526979A JP526979A JPS5598709A JP S5598709 A JPS5598709 A JP S5598709A JP 526979 A JP526979 A JP 526979A JP 526979 A JP526979 A JP 526979A JP S5598709 A JPS5598709 A JP S5598709A
Authority
JP
Japan
Prior art keywords
symmetrical
arrays
detection
focus
correlation
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
JP526979A
Other languages
English (en)
Japanese (ja)
Other versions
JPS627523B2 (en, 2012
Inventor
Takeshi Utagawa
Kunihisa Hoshino
Hiroshi Shirasu
Akira Ogasawara
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
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co Ltd
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 Chemical Industrial Co Ltd, Nippon Kogaku KK filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP526979A priority Critical patent/JPS5598709A/ja
Priority to US06/109,282 priority patent/US4297571A/en
Priority to DE19803001412 priority patent/DE3001412A1/de
Publication of JPS5598709A publication Critical patent/JPS5598709A/ja
Publication of JPS627523B2 publication Critical patent/JPS627523B2/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)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
JP526979A 1979-01-20 1979-01-20 Focusing detector Granted JPS5598709A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP526979A JPS5598709A (en) 1979-01-20 1979-01-20 Focusing detector
US06/109,282 US4297571A (en) 1979-01-20 1980-01-03 Focus detecting device
DE19803001412 DE3001412A1 (de) 1979-01-20 1980-01-16 Fokussiererfassungsvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP526979A JPS5598709A (en) 1979-01-20 1979-01-20 Focusing detector

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP808886A Division JPS61209412A (ja) 1986-01-20 1986-01-20 合焦検出装置

Publications (2)

Publication Number Publication Date
JPS5598709A true JPS5598709A (en) 1980-07-28
JPS627523B2 JPS627523B2 (en, 2012) 1987-02-18

Family

ID=11606502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP526979A Granted JPS5598709A (en) 1979-01-20 1979-01-20 Focusing detector

Country Status (3)

Country Link
US (1) US4297571A (en, 2012)
JP (1) JPS5598709A (en, 2012)
DE (1) DE3001412A1 (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952966A (en) * 1983-01-10 1990-08-28 Minolta Camera Kabushiki Kaisha Focus detecting device for use with cameras
JPH02230111A (ja) * 1990-01-29 1990-09-12 Nikon Corp 焦点検出装置
JPH0333708A (ja) * 1990-07-03 1991-02-14 Minolta Camera Co Ltd ピント検出装置
US5202555A (en) * 1983-01-10 1993-04-13 Minolta Camera Kabushiki Kaisha Focus detecting device for use with cameras with correlation and contrast detecting means

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342905A (en) * 1979-08-31 1982-08-03 Nippon Kogaku K.K. Automatic focusing device of a microscope
US4548495A (en) * 1981-02-27 1985-10-22 Takeomi Suzuki Proper focusing state detecting device
JPS5887512A (ja) * 1981-11-19 1983-05-25 Nippon Kogaku Kk <Nikon> 焦点検出装置
US4559446A (en) * 1982-02-18 1985-12-17 Canon Kabushiki Kaisha Focus detecting system using light from an imaging optical system for focus detection
JPS58207013A (ja) * 1982-05-25 1983-12-02 Olympus Optical Co Ltd 合焦検出方法
JPS5940610A (ja) * 1982-08-30 1984-03-06 Canon Inc 合焦検出装置
DD210359A1 (de) * 1982-09-29 1984-06-06 Pentacon Dresden Veb Anordnung zur automatischen scharfeinstellung fotografischer kameras
JPS59147306A (ja) * 1983-02-10 1984-08-23 Sony Corp フオ−カス誤差検出装置
JPS59208513A (ja) * 1983-05-12 1984-11-26 Canon Inc 焦点検出装置
US4766302A (en) * 1984-05-17 1988-08-23 Minolta Camera Kabushiki Kaisha Focus detecting device including means for determining a priority of correlation calculations
JP2572372B2 (ja) * 1985-05-23 1997-01-16 株式会社ニコン 焦点検出装置
JPH0727107B2 (ja) * 1985-07-26 1995-03-29 ミノルタ株式会社 相関像比較装置及びそれを用いた焦点検出装置及び測距装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023247A (en, 2012) * 1973-06-29 1975-03-12
JPS5039543A (en, 2012) * 1973-07-09 1975-04-11
JPS53118125A (en) * 1977-03-25 1978-10-16 Yashica Co Ltd Focal point adjusting device
JPS545270A (en) * 1977-06-09 1979-01-16 Lonza Ag Rotary filter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875401B1 (en) * 1973-07-09 1994-02-01 Honeywell Inc. Focus detecting apparatus
US4083056A (en) * 1975-09-09 1978-04-04 Asahi Kogaku Kogyo Kabushiki Kaisha Focus detecting device for single-lens reflex cameras
US4250376A (en) * 1979-07-20 1981-02-10 Honeywell Inc. Apparatus for range finding equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023247A (en, 2012) * 1973-06-29 1975-03-12
JPS5039543A (en, 2012) * 1973-07-09 1975-04-11
JPS53118125A (en) * 1977-03-25 1978-10-16 Yashica Co Ltd Focal point adjusting device
JPS545270A (en) * 1977-06-09 1979-01-16 Lonza Ag Rotary filter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952966A (en) * 1983-01-10 1990-08-28 Minolta Camera Kabushiki Kaisha Focus detecting device for use with cameras
US5138143A (en) * 1983-01-10 1992-08-11 Minolta Camera Co., Ltd. Focus detecting device for use with cameras
US5202555A (en) * 1983-01-10 1993-04-13 Minolta Camera Kabushiki Kaisha Focus detecting device for use with cameras with correlation and contrast detecting means
JPH02230111A (ja) * 1990-01-29 1990-09-12 Nikon Corp 焦点検出装置
JPH0333708A (ja) * 1990-07-03 1991-02-14 Minolta Camera Co Ltd ピント検出装置

Also Published As

Publication number Publication date
JPS627523B2 (en, 2012) 1987-02-18
DE3001412A1 (de) 1980-07-31
US4297571A (en) 1981-10-27

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