JPS5283276A - Photoelectrical defect detector - Google Patents

Photoelectrical defect detector

Info

Publication number
JPS5283276A
JPS5283276A JP15736875A JP15736875A JPS5283276A JP S5283276 A JPS5283276 A JP S5283276A JP 15736875 A JP15736875 A JP 15736875A JP 15736875 A JP15736875 A JP 15736875A JP S5283276 A JPS5283276 A JP S5283276A
Authority
JP
Japan
Prior art keywords
photoelectrical
defect detector
edges
subject
control
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
JP15736875A
Other languages
Japanese (ja)
Other versions
JPS5612816B2 (en
Inventor
Yukio Uenishi
Katsuumi Koyanagi
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP15736875A priority Critical patent/JPS5283276A/en
Publication of JPS5283276A publication Critical patent/JPS5283276A/en
Publication of JPS5612816B2 publication Critical patent/JPS5612816B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:Defects near the edges of a subject are detected without overlooking with a simple constitution of performing gain control with an AGC circuit by eliminating such a thing as to control the relative position relations between the edges of the subject and a photoelectric detecting element constant.
JP15736875A 1975-12-30 1975-12-30 Photoelectrical defect detector Granted JPS5283276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15736875A JPS5283276A (en) 1975-12-30 1975-12-30 Photoelectrical defect detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15736875A JPS5283276A (en) 1975-12-30 1975-12-30 Photoelectrical defect detector

Publications (2)

Publication Number Publication Date
JPS5283276A true JPS5283276A (en) 1977-07-12
JPS5612816B2 JPS5612816B2 (en) 1981-03-24

Family

ID=15648115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15736875A Granted JPS5283276A (en) 1975-12-30 1975-12-30 Photoelectrical defect detector

Country Status (1)

Country Link
JP (1) JPS5283276A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5626246A (en) * 1979-08-09 1981-03-13 Satake Eng Co Ltd Automatic control device for color selector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4841790A (en) * 1971-09-23 1973-06-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4841790A (en) * 1971-09-23 1973-06-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5626246A (en) * 1979-08-09 1981-03-13 Satake Eng Co Ltd Automatic control device for color selector

Also Published As

Publication number Publication date
JPS5612816B2 (en) 1981-03-24

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