JPS5644830A - Defect detection system of sheet type material - Google Patents

Defect detection system of sheet type material

Info

Publication number
JPS5644830A
JPS5644830A JP12001079A JP12001079A JPS5644830A JP S5644830 A JPS5644830 A JP S5644830A JP 12001079 A JP12001079 A JP 12001079A JP 12001079 A JP12001079 A JP 12001079A JP S5644830 A JPS5644830 A JP S5644830A
Authority
JP
Japan
Prior art keywords
light
type material
sheet type
spot
projecting means
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
JP12001079A
Other languages
Japanese (ja)
Other versions
JPH022098B2 (en
Inventor
Hiroshi Aoki
Naomasa Takusagawa
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP12001079A priority Critical patent/JPS5644830A/en
Publication of JPS5644830A publication Critical patent/JPS5644830A/en
Publication of JPH022098B2 publication Critical patent/JPH022098B2/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
    • 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 improve the defect detection accuracy by enabling the adjustment of the light spot diameter of a light projecting means. CONSTITUTION:Two sets of projecting means 10 consisting of projector 12 including the laser source such as argon or helium-neon, generator, prism, lens, etc., and oscillating mirror 16 making the laser light from projector 12 reach the light receiving face are arranged. And the lens systems thereof are made different, and further, the spot diameters on the sheet type material surface (the width of scanning line) are made two ranges such as 0.2-0.8mm. and 1.3-2mm.. Herewith, when a sheet type material of light penetrating quality is made to run under light projecting means 10, the light spot is projected to this sheet type material through the flying spot scanning system and that penetrating light is received with light receiving means 20, then, the micro defects of the sheet type material such as the total number of the spot type defects of the sheet type material and the number of decomposed foreign substances can be separated and identified in details.
JP12001079A 1979-09-20 1979-09-20 Defect detection system of sheet type material Granted JPS5644830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12001079A JPS5644830A (en) 1979-09-20 1979-09-20 Defect detection system of sheet type material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12001079A JPS5644830A (en) 1979-09-20 1979-09-20 Defect detection system of sheet type material

Publications (2)

Publication Number Publication Date
JPS5644830A true JPS5644830A (en) 1981-04-24
JPH022098B2 JPH022098B2 (en) 1990-01-16

Family

ID=14775661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12001079A Granted JPS5644830A (en) 1979-09-20 1979-09-20 Defect detection system of sheet type material

Country Status (1)

Country Link
JP (1) JPS5644830A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166066A (en) * 1982-03-26 1983-10-01 Fujitsu Ltd Printing head
JPS58196137U (en) * 1982-06-24 1983-12-27 株式会社精工舎 Printing hammer tip guide device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH073497U (en) * 1993-06-29 1995-01-20 株式会社イナックス Health check toilet room

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166066A (en) * 1982-03-26 1983-10-01 Fujitsu Ltd Printing head
JPH0243633B2 (en) * 1982-03-26 1990-10-01 Fujitsu Ltd
JPS58196137U (en) * 1982-06-24 1983-12-27 株式会社精工舎 Printing hammer tip guide device

Also Published As

Publication number Publication date
JPH022098B2 (en) 1990-01-16

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