JPS641765B2 - - Google Patents

Info

Publication number
JPS641765B2
JPS641765B2 JP15864478A JP15864478A JPS641765B2 JP S641765 B2 JPS641765 B2 JP S641765B2 JP 15864478 A JP15864478 A JP 15864478A JP 15864478 A JP15864478 A JP 15864478A JP S641765 B2 JPS641765 B2 JP S641765B2
Authority
JP
Japan
Prior art keywords
image
output
outputs
circuit
focus position
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
Application number
JP15864478A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5587114A (en
Inventor
Hideyuki Horiuchi
Akihide Hashizume
Ryuichi Suzuki
Hisatake Yokochi
Shinji Yamamoto
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP15864478A priority Critical patent/JPS5587114A/ja
Publication of JPS5587114A publication Critical patent/JPS5587114A/ja
Publication of JPS641765B2 publication Critical patent/JPS641765B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP15864478A 1978-12-25 1978-12-25 Focus position detector Granted JPS5587114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15864478A JPS5587114A (en) 1978-12-25 1978-12-25 Focus position detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15864478A JPS5587114A (en) 1978-12-25 1978-12-25 Focus position detector

Publications (2)

Publication Number Publication Date
JPS5587114A JPS5587114A (en) 1980-07-01
JPS641765B2 true JPS641765B2 (enExample) 1989-01-12

Family

ID=15676203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15864478A Granted JPS5587114A (en) 1978-12-25 1978-12-25 Focus position detector

Country Status (1)

Country Link
JP (1) JPS5587114A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0534297A (ja) * 1991-07-31 1993-02-09 Bridgestone Corp 浸透探傷検査装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158819A (en) * 1981-03-27 1982-09-30 Olympus Optical Co Ltd Method for focusing detection
JPS57158820A (en) * 1981-03-27 1982-09-30 Olympus Optical Co Ltd Method for focusing detection
US5475429A (en) * 1991-07-25 1995-12-12 Olympus Optical Co., Ltd. In-focus sensing device for sensing an in-focus condition using a ratio of frequency components at different positions
JP4491722B2 (ja) * 2004-08-26 2010-06-30 住友電気工業株式会社 フィルムの検査装置
JP4828571B2 (ja) * 2008-05-13 2011-11-30 日本電信電話株式会社 光スイッチ制御方法および装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0534297A (ja) * 1991-07-31 1993-02-09 Bridgestone Corp 浸透探傷検査装置

Also Published As

Publication number Publication date
JPS5587114A (en) 1980-07-01

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