JPS5249083A - Device for detecting surface defects of one dimensionally continuous o bjects to be examined - Google Patents

Device for detecting surface defects of one dimensionally continuous o bjects to be examined

Info

Publication number
JPS5249083A
JPS5249083A JP12439575A JP12439575A JPS5249083A JP S5249083 A JPS5249083 A JP S5249083A JP 12439575 A JP12439575 A JP 12439575A JP 12439575 A JP12439575 A JP 12439575A JP S5249083 A JPS5249083 A JP S5249083A
Authority
JP
Japan
Prior art keywords
examined
bjects
surface defects
detecting surface
dimensionally continuous
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
JP12439575A
Other languages
Japanese (ja)
Other versions
JPS5624899B2 (en
Inventor
Tomohiro Kuni
Nobuyuki Akiyama
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12439575A priority Critical patent/JPS5249083A/en
Priority to US05/715,218 priority patent/US4095905A/en
Priority to DE2637375A priority patent/DE2637375C3/en
Priority to GB34646/76A priority patent/GB1548973A/en
Publication of JPS5249083A publication Critical patent/JPS5249083A/en
Publication of JPS5624899B2 publication Critical patent/JPS5624899B2/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

Landscapes

  • 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)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:Minute sections of an object to be examined are radiated annularly from three circumferential directions by a light source and plural reflecting mirrors, whereby the captioned detecting device which can dispense with one light source and may simplify maintenance and inspection is obtained.
JP12439575A 1975-08-20 1975-10-17 Device for detecting surface defects of one dimensionally continuous o bjects to be examined Granted JPS5249083A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP12439575A JPS5249083A (en) 1975-10-17 1975-10-17 Device for detecting surface defects of one dimensionally continuous o bjects to be examined
US05/715,218 US4095905A (en) 1975-08-20 1976-08-17 Surface-defect detecting device
DE2637375A DE2637375C3 (en) 1975-08-20 1976-08-19 Optical surface testing device
GB34646/76A GB1548973A (en) 1975-08-20 1976-08-19 Surface defect detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12439575A JPS5249083A (en) 1975-10-17 1975-10-17 Device for detecting surface defects of one dimensionally continuous o bjects to be examined

Publications (2)

Publication Number Publication Date
JPS5249083A true JPS5249083A (en) 1977-04-19
JPS5624899B2 JPS5624899B2 (en) 1981-06-09

Family

ID=14884355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12439575A Granted JPS5249083A (en) 1975-08-20 1975-10-17 Device for detecting surface defects of one dimensionally continuous o bjects to be examined

Country Status (1)

Country Link
JP (1) JPS5249083A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640744A (en) * 1979-09-12 1981-04-17 Hitachi Cable Ltd Inspection device for external appearance of thread

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177795U (en) * 1984-05-01 1985-11-26 藤松　房茂 Ashtray with suction cup for automobiles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4520317Y1 (en) * 1970-01-14 1970-08-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4520317Y1 (en) * 1970-01-14 1970-08-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640744A (en) * 1979-09-12 1981-04-17 Hitachi Cable Ltd Inspection device for external appearance of thread

Also Published As

Publication number Publication date
JPS5624899B2 (en) 1981-06-09

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