JPS5276985A - Flaw detector - Google Patents

Flaw detector

Info

Publication number
JPS5276985A
JPS5276985A JP15353275A JP15353275A JPS5276985A JP S5276985 A JPS5276985 A JP S5276985A JP 15353275 A JP15353275 A JP 15353275A JP 15353275 A JP15353275 A JP 15353275A JP S5276985 A JPS5276985 A JP S5276985A
Authority
JP
Japan
Prior art keywords
flaw detector
light source
scanning
variation
real time
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
JP15353275A
Other languages
Japanese (ja)
Other versions
JPS5949533B2 (en
Inventor
Minokichi Ban
Sei Higuchi
Takayuki Shirasaki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP15353275A priority Critical patent/JPS5949533B2/en
Publication of JPS5276985A publication Critical patent/JPS5276985A/en
Publication of JPS5949533B2 publication Critical patent/JPS5949533B2/en
Expired 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
    • G01N21/8901—Optical details; Scanning details

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:To prevent measurement errors by the variation in the quantity of light of a light source by scanning a reference surface and an object surface with the same light source and comparing detection levels in real time.
JP15353275A 1975-12-23 1975-12-23 Ketsukankenshiyutsusouchi Expired JPS5949533B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15353275A JPS5949533B2 (en) 1975-12-23 1975-12-23 Ketsukankenshiyutsusouchi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15353275A JPS5949533B2 (en) 1975-12-23 1975-12-23 Ketsukankenshiyutsusouchi

Publications (2)

Publication Number Publication Date
JPS5276985A true JPS5276985A (en) 1977-06-28
JPS5949533B2 JPS5949533B2 (en) 1984-12-03

Family

ID=15564571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15353275A Expired JPS5949533B2 (en) 1975-12-23 1975-12-23 Ketsukankenshiyutsusouchi

Country Status (1)

Country Link
JP (1) JPS5949533B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658645A (en) * 1979-10-19 1981-05-21 Tdk Corp Flaw detecting device
JPS5950344A (en) * 1982-09-14 1984-03-23 Meidensha Electric Mfg Co Ltd Detector for flaw of glass bottle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658645A (en) * 1979-10-19 1981-05-21 Tdk Corp Flaw detecting device
JPS5950344A (en) * 1982-09-14 1984-03-23 Meidensha Electric Mfg Co Ltd Detector for flaw of glass bottle
JPH0331220B2 (en) * 1982-09-14 1991-05-02 Meidensha Electric Mfg Co Ltd

Also Published As

Publication number Publication date
JPS5949533B2 (en) 1984-12-03

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