JPS57135304A - Knife mark inspecting device - Google Patents

Knife mark inspecting device

Info

Publication number
JPS57135304A
JPS57135304A JP2040181A JP2040181A JPS57135304A JP S57135304 A JPS57135304 A JP S57135304A JP 2040181 A JP2040181 A JP 2040181A JP 2040181 A JP2040181 A JP 2040181A JP S57135304 A JPS57135304 A JP S57135304A
Authority
JP
Japan
Prior art keywords
knife mark
light beam
cylindrical lens
slits
slit
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.)
Pending
Application number
JP2040181A
Other languages
Japanese (ja)
Inventor
Hikari Ohata
Yutaka Abe
Shinji Okamoto
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2040181A priority Critical patent/JPS57135304A/en
Publication of JPS57135304A publication Critical patent/JPS57135304A/en
Pending 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)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To lighten the positioning accuracy of a device, and also to elevate the inspection capacity, by detecting a light beam from an optical image bearing a knife mark generated by being irradiated by a band-like light beam through a cylindrical lens and a slit, through 3 prescribed slits. CONSTITUTION:A light beam emitted from a light source 1 is made a band-like light beam by a cylindrical lens 2, and diagonally irradiates a knife mark 8 on a veneer 9 carried on the belt conveyor. The knife mark 8 is made to form an image as a dark line on a screen 5 through a slit 3 and a cylindrical lens 4. Its optical image is detected by a photomultiplier 7 through 3 slits which are in parallel with the knife mark 8 and make an angle of + or -2 deg. against it. In this way, not only the positioning accuracy of a device is lightened but also its inspection capacity is elevated.
JP2040181A 1981-02-13 1981-02-13 Knife mark inspecting device Pending JPS57135304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2040181A JPS57135304A (en) 1981-02-13 1981-02-13 Knife mark inspecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2040181A JPS57135304A (en) 1981-02-13 1981-02-13 Knife mark inspecting device

Publications (1)

Publication Number Publication Date
JPS57135304A true JPS57135304A (en) 1982-08-20

Family

ID=12025994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2040181A Pending JPS57135304A (en) 1981-02-13 1981-02-13 Knife mark inspecting device

Country Status (1)

Country Link
JP (1) JPS57135304A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07314740A (en) * 1995-05-25 1995-12-05 Seiko Epson Corp Ink tank for printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07314740A (en) * 1995-05-25 1995-12-05 Seiko Epson Corp Ink tank for printer

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