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Method and apparatus for detecting the presence of flaws in a moving sheet of material 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01N-021/88
출원번호 US-0352197 (1989-05-16)
발명자 / 주소
  • Cielo Paolo (Montreal CAX) Dufour Marc (Montreal CAX) Vaudreuil Ghislain (Boucherville CAX)
출원인 / 주소
  • Canadian Patents and Development Limited/Societe Canadienne des Brevets et d\Exploitation Limitee (Ottawa CAX 03)
인용정보 피인용 횟수 : 29  인용 특허 : 14

초록

The present disclosure describes an apparatus and a method for detecting the presence of flaws in a moving sheet of material. The apparatus comprises a light source for projecting a light beam; a beam shaping unit for shaping the light beam into a predetermined structured light pattern, and projecti

대표청구항

An apparatus for detecting the presence of flaws in a moving sheet of material, comprising: a coherent laser light source for projecting a light beam; beam shaping means for shaping said light beam into a predetermined structured light pattern, and projecting said structured light pattern onto a por

이 특허에 인용된 특허 (14)

  1. Curl, Barry J., Apparatus for determining with high resolution the position of edges of a web.
  2. Neiheisel Gary L. (Cincinnati OH) Hoover Bradley R. (Hamilton OH), Automatic defect detecting inspection apparatus.
  3. Steigmeier Edgar F. (Hedingen CHX) Knop Karl (Zurich CHX), Defect detection system.
  4. Sick Erwin (Icking DEX) Schenk Christoph (Icking DEX), Grooved surface defect detection apparatus.
  5. Seki Takeo (Kokubunji JA) Maeda Itsuji (Akishima JA), Method and apparatus for detecting defects in a surface regardless of surface finish.
  6. Hategan Stephane (Charenton FR), Method and apparatus for detecting optical defects in transparent sheets.
  7. Pryor Timothy R. (Windsor CAX) Hageniers Omer L. (Windsor CAX) Pastorius Walter J. (Windsor CAX) Liptay-Wagner Nicholas (Windsor CAX) Clarke Donald A. (Windsor CAX), Method and apparatus for determining physical characteristics of objects and object surfaces.
  8. Hirvonen Kullervo (Varkaus FIX) Karonen Aimo (Varkaus FIX), Method for identifying timber surface properties.
  9. Pernick Benjamin J. (Hampton Bays NY), Optical flaw detection method and apparatus.
  10. Clarke Donald A. (Windsor CAX) Reynolds Rodger L. (Windsor CAX) Pryor Timothy R. (Tecumseh CAX), Panel surface flaw inspection.
  11. Leuenberger Rolf (Pfffikon CHX) Hunziker Christian (Mnchaltorf CHX), Process and device for automatically detecting faults in fabrics and similar textile sheet-like structures.
  12. Anthon Erik W. (Santa Rosa CA), Scattermeter using polarized light to distinguish between bulk and surface scatter.
  13. Nakagawa Yasuo (Yokohama JPX) Hamada Toshimitsu (Tokyo JPX), Surface detect test apparatus.
  14. Chastang Jean-Claude A. (Mahopac NY) Hildenbrand Walter W. (Brewster NY) Levanoni Menachem (Yorktown Heights NY), Ultra-fast photometric instrument.

이 특허를 인용한 특허 (29)

  1. Albert D. Edgar, Apparatus and method for defect channel nulling.
  2. Nakajima,Takeshi; Higuchi,Manabu; Wakita,Takeshi, Apparatus and method for inspecting film defect.
  3. Yamaguchi, Yukihiko; Murai, Koichi, Apparatus and method for inspecting light transmittable material.
  4. Martin Potucek ; Albert D. Edgar ; Darryl R. Polk, Apparatus and methods for capturing defect data.
  5. Anthony James Cronshaw GB; Mark Robson Humphries GB; Christopher James Hodges GB; John Horace Fisher GB, Apparatus for surface image sensing and surface inspection of three-dimensional structures.
  6. Kuo C. C. ; Claiborne Jimmy D. ; Cantrell Henry L. ; Turner Steve T. ; Wethington Glenn, Digital signal processor knitting scanner.
  7. Ford,Gordon D.; Lester,Leland A.; Iglehart,David C., Distinguishing positive and negative films system and method.
  8. Stavely Donald J. ; Bloom Daniel M. ; Battles Amy E. ; Campbell David K. ; Herrera E. Oscar R., Film scanner with dust and scratch correction by use of dark-field illumination.
  9. Albert D. Edgar, Four color trilinear CCD scanning.
  10. Albert D. Edgar, Image defect correction in transform space.
  11. Markku Mustonen, Imaging system for high-speed paper webs.
  12. Ford, Gordon D., Lens focusing device, system and method for use with multiple light wavelengths.
  13. Edgar, Albert D., Luminance-priority electronic color image sensor.
  14. Ford, Gordon D., Method and apparatus for correcting heavily damaged images.
  15. Ford, Gordon D.; Lester, Leland A., Method and apparatus for correcting large defects in digital images.
  16. Martin Potucek ; Albert D. Edgar ; Thomas A. Dundon, Method and apparatus for differential illumination image-capturing and defect handling.
  17. Ford, Gordon D.; Lester, Leland A.; Iglehart, David C., Method and apparatus for reducing the effect of bleed-through on captured images.
  18. Edgar, Albert D.; Penn, Steven C., Method and apparatus for scanning images.
  19. Albert D. Edgar ; Raymond S. Lee, Method and system for altering defects in a digital image.
  20. Edgar, Albert D.; Lee, Raymond S., Method and system for altering defects in a digital image.
  21. Lee, Raymond S., Method and system for altering defects in digital image.
  22. Ford, Gordon D.; Dundon, Thomas A.; Edgar, Albert D.; Potucek, Martin; Lee, Raymond S., Method and system for multi-sensor signal detection.
  23. Edgar,Albert D., Method, system and software for correcting image defects.
  24. Edgar, Albert D.; Penn, Steven C., Multilinear array sensor with an infrared line.
  25. Itagaki,Nobutaka, Pointing device.
  26. Eisen, Juergen; Zwerger, Lars, Sensor for capturing a moving material web.
  27. Edgar, Albert D.; Dundon, Thomas A., System and method for correcting defects in digital images through selective fill-in from surrounding areas.
  28. Capaldo,Kevin Patrick; Cheverton,Mark; Harding,Kevin George; Tait,Robert, System and method for detecting defects in a light-management film.
  29. Wolfe, Kenneth I., Web inspection system having enhanced video signal preprocessing.
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