JPS597321A - 高精度なピントずれ検出装置 - Google Patents

高精度なピントずれ検出装置

Info

Publication number
JPS597321A
JPS597321A JP57114082A JP11408282A JPS597321A JP S597321 A JPS597321 A JP S597321A JP 57114082 A JP57114082 A JP 57114082A JP 11408282 A JP11408282 A JP 11408282A JP S597321 A JPS597321 A JP S597321A
Authority
JP
Japan
Prior art keywords
signal
circuit
output
focus
image sensor
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
JP57114082A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0380285B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Koichi Kudo
浩一 工藤
Hidehiro Ogawa
英洋 小川
Atsushi Kawahara
河原　厚
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
Nikon Corp
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP57114082A priority Critical patent/JPS597321A/ja
Priority to US06/508,166 priority patent/US4587416A/en
Publication of JPS597321A publication Critical patent/JPS597321A/ja
Publication of JPH0380285B2 publication Critical patent/JPH0380285B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP57114082A 1982-07-02 1982-07-02 高精度なピントずれ検出装置 Granted JPS597321A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP57114082A JPS597321A (ja) 1982-07-02 1982-07-02 高精度なピントずれ検出装置
US06/508,166 US4587416A (en) 1982-07-02 1983-06-27 Focus detecting apparatus for microscope or camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57114082A JPS597321A (ja) 1982-07-02 1982-07-02 高精度なピントずれ検出装置

Publications (2)

Publication Number Publication Date
JPS597321A true JPS597321A (ja) 1984-01-14
JPH0380285B2 JPH0380285B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-12-24

Family

ID=14628614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57114082A Granted JPS597321A (ja) 1982-07-02 1982-07-02 高精度なピントずれ検出装置

Country Status (2)

Country Link
US (1) US4587416A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS597321A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0531543B1 (en) * 1991-03-29 2000-07-19 Olympus Optical Co., Ltd. Apparatus for sensing automatic focusing
US6115553A (en) * 1996-09-17 2000-09-05 Asahi Kogaku Kogyo Kabushiki Kaisha Multipoint autofocus system
WO1999010771A1 (en) * 1997-08-22 1999-03-04 Lxr Biotechnology, Inc. Focusing and autofocusing in scanning laser imaging

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228340A (en) * 1975-08-29 1977-03-03 Hitachi Ltd Automatial focus adjustment unit for microscope
JPS5576310A (en) * 1978-12-05 1980-06-09 Nippon Kogaku Kk <Nikon> Automatic focusing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386832A1 (fr) * 1977-04-05 1978-11-03 Commissariat Energie Atomique Procede de correction automatique de mise au point d'un microscope et un dispositif mettant en oeuvre ledit procede
JPS55124113A (en) * 1979-03-17 1980-09-25 Ricoh Co Ltd Focusing detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228340A (en) * 1975-08-29 1977-03-03 Hitachi Ltd Automatial focus adjustment unit for microscope
JPS5576310A (en) * 1978-12-05 1980-06-09 Nippon Kogaku Kk <Nikon> Automatic focusing device

Also Published As

Publication number Publication date
US4587416A (en) 1986-05-06
JPH0380285B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-12-24

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