EP1751526A1 - Procede et dispositif pour detecter des rayures - Google Patents

Procede et dispositif pour detecter des rayures

Info

Publication number
EP1751526A1
EP1751526A1 EP05707360A EP05707360A EP1751526A1 EP 1751526 A1 EP1751526 A1 EP 1751526A1 EP 05707360 A EP05707360 A EP 05707360A EP 05707360 A EP05707360 A EP 05707360A EP 1751526 A1 EP1751526 A1 EP 1751526A1
Authority
EP
European Patent Office
Prior art keywords
light
scan line
material surface
diffuse
scratches
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.)
Withdrawn
Application number
EP05707360A
Other languages
German (de)
English (en)
Inventor
Armin Rudert
Ulrich Pingel
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.)
Isra Surface Vision GmbH
Original Assignee
Isra Surface Vision GmbH
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 Isra Surface Vision GmbH filed Critical Isra Surface Vision GmbH
Publication of EP1751526A1 publication Critical patent/EP1751526A1/fr
Withdrawn legal-status Critical Current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
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
    • 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
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/896—Optical defects in or on transparent materials, e.g. distortion, surface flaws in conveyed flat sheet or rod

Definitions

  • the light bar can simply have an optic through which the light beams are aligned in parallel.
  • the optics can be followed by a diffuser, in particular a lenticular, for generating the light which is diffuse in the direction of the scan line.
  • a matt screen could also be used to even out the emerging light, but this would result in transmission losses. thats why a lenticular consisting of micro-cylindrical lenses is advantageous, in which the micro-cylindrical lenses distribute the light evenly with high transparency.
  • the invention relates to a method for the detection of scratches on a material surface, which can be carried out in particular with the device described above.
  • the material surface is illuminated with an illumination device and recorded with a recording device along a predetermined scan line.
  • the lighting device is arranged in such a way that when the material surface is free of defects, no light from the lighting device falls into the receiving device.
  • the recording device can look into a light trap when the surface of a transparent material is examined.
  • scratch sections can also be displayed so that they are recognizable as coherent scratches.

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)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

L'invention concerne un dispositif et un procédé associé pour détecter des rayures sur la surface d'un matériau (2), notamment du verre, au moyen d'un dispositif d'éclairage (3) et d'un dispositif d'enregistrement (4), lesquels sont mobiles relativement à la surface du matériau (2) et saisissent une ligne de balayage (6). Afin de détecter des rayures avec une grande fiabilité, le dispositif d'éclairage (3) est pourvu d'au moins une bande lumineuse (20), qui génère de la lumière diffuse ou quasi diffuse parallèle en direction de la ligne de balayage (6) et transversalement à celle-ci, et de préférence d'au moins une source lumineuse (16) qui émet de la lumière diffuse ou quasi diffuse transversalement à la ligne de balayage (6).
EP05707360A 2004-05-29 2005-02-12 Procede et dispositif pour detecter des rayures Withdrawn EP1751526A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004026375A DE102004026375B4 (de) 2004-05-29 2004-05-29 Vorrichtung und Verfahren zur Detektion von Kratzern
PCT/EP2005/001440 WO2005116616A1 (fr) 2004-05-29 2005-02-12 Procede et dispositif pour detecter des rayures

Publications (1)

Publication Number Publication Date
EP1751526A1 true EP1751526A1 (fr) 2007-02-14

Family

ID=34960486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05707360A Withdrawn EP1751526A1 (fr) 2004-05-29 2005-02-12 Procede et dispositif pour detecter des rayures

Country Status (10)

Country Link
US (1) US7453563B2 (fr)
EP (1) EP1751526A1 (fr)
JP (1) JP4918032B2 (fr)
KR (1) KR100907247B1 (fr)
CN (1) CN100590426C (fr)
CA (1) CA2567061C (fr)
DE (1) DE102004026375B4 (fr)
IL (1) IL179385A (fr)
NO (1) NO20065925L (fr)
WO (1) WO2005116616A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006042117A1 (de) * 2006-09-07 2008-03-27 Dr. Schenk Gmbh Industriemesstechnik Vorrichtung zur optischen Detektion eines Oberflächenfehlers eines Substrats
US8242477B2 (en) 2007-01-12 2012-08-14 Synergx Technologies Inc. Bright field and dark field channels, used for automotive glass inspection systems
US7551274B1 (en) 2007-02-28 2009-06-23 Lite Sentry Corporation Defect detection lighting system and methods for large glass sheets
DE102007037812B4 (de) 2007-08-10 2023-03-16 Carl Zeiss Optotechnik GmbH Verfahren und Vorrichtung zur Detektion von Oberflächenfehlern eines Bauteils
DE102007045323A1 (de) * 2007-09-21 2009-04-09 Siemens Ag Anordnung und Verfahren zur optischen Detektion von Unebenheiten einer Glasscheibe
EP2335047A4 (fr) * 2008-09-12 2012-02-22 Ceramicam Ltd Dispositif de balayage de surface
DE102010021853B4 (de) 2010-05-28 2012-04-26 Isra Vision Ag Einrichtung und Verfahren zur optischen Überprüfung eines Gegenstands
CN101995412B (zh) * 2010-08-30 2012-09-05 中国科学院计算技术研究所 一种鲁棒的玻璃划伤缺陷检测方法及其装置
CN102401802A (zh) * 2010-09-08 2012-04-04 上海宝钢工业检测公司 轧辊表面磨削质量光检查方法
KR20140108712A (ko) * 2011-12-31 2014-09-12 쌩-고벵 글래스 프랑스 투명 기판 내의 결함을 검출하기 위한 조명 시스템 및 상기 조명 시스템을 포함하는 검출 시스템
CN103868929B (zh) * 2013-11-29 2017-01-25 中广核研究院有限公司 密封面缺陷三维检测方法
CN105300884A (zh) * 2015-11-05 2016-02-03 苏州威盛视信息科技有限公司 一种散射线性光源检测装置
CN113376164A (zh) * 2020-03-10 2021-09-10 觉芯电子(无锡)有限公司 一种表面划痕检测方法及装置
JP2022003325A (ja) * 2020-06-23 2022-01-11 株式会社小糸製作所 表面検査装置および表面検査システム
CN113916908A (zh) * 2021-09-03 2022-01-11 苏州鑫格雅电子科技有限公司 一种提高玻璃物性表面处理后用划痕检测装置及其检测方法
CN114310395B (zh) * 2022-01-13 2022-12-06 广东韶钢松山股份有限公司 一种检测金属工件表面划痕深度的装置及方法
US11867630B1 (en) 2022-08-09 2024-01-09 Glasstech, Inc. Fixture and method for optical alignment in a system for measuring a surface in contoured glass sheets

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6211135A (ja) * 1985-06-24 1987-01-20 Hitachi Electronics Eng Co Ltd 透明試料板の表面検査装置
DE19838410A1 (de) * 1997-08-25 1999-03-25 Nippon Maxis Co Montageplattform für transparentes Substrat, Kratzerinspektionsvorrichtung für transparentes Substrat, Vorrichtung und Verfahren für die Abschrägungsinspektion eines transparenten Substrats und Verfahren zur Inspektion eines transparenten Substrats
WO2000011400A1 (fr) * 1998-08-24 2000-03-02 Intelligent Reasoning Systems, Inc. Systeme de dome lumineux et procede d'illumination d'objets visualises par des systemes d'imagerie
WO2000026647A1 (fr) * 1998-10-30 2000-05-11 Image Processing Systems Inc. Systeme d'inspection de verre

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Publication number Priority date Publication date Assignee Title
US3814946A (en) * 1972-12-04 1974-06-04 Asahi Glass Co Ltd Method of detecting defects in transparent and semitransparent bodies
DE2261460A1 (de) * 1972-12-15 1974-06-20 Asahi Glass Co Ltd Verfahren und vorrichtung zum aufzeigen von optischen, fehlerhaften stellen in einem durchlaessigen oder halbdurchlaessigen koerper
JPH0640076B2 (ja) * 1988-10-20 1994-05-25 三菱レイヨン株式会社 ライン状光源を用いた欠陥検査装置
JPH03210460A (ja) * 1990-01-13 1991-09-13 Matsushita Electric Works Ltd 表面検査装置
FR2697086B1 (fr) * 1992-10-20 1994-12-09 Thomson Csf Procédé et dispositif d'inspection de matériau transparent.
JP3379805B2 (ja) * 1993-05-13 2003-02-24 オリンパス光学工業株式会社 表面欠陥検査装置
JP3659952B2 (ja) * 1993-05-13 2005-06-15 オリンパス株式会社 表面欠陥検査装置
JP3170598B2 (ja) * 1995-03-16 2001-05-28 株式会社サキコーポレーション 外観検査装置
US5745176A (en) * 1995-10-12 1998-04-28 Ppt Vision, Inc. Machine-vision illumination system and method for delineating a lighted volume from an unlighted volume
JP3726150B2 (ja) * 1997-06-12 2005-12-14 株式会社ダイレクトコミュニケーションズ 微細領域の照明装置
JP4189061B2 (ja) * 1998-07-10 2008-12-03 株式会社Ｉｈｉ コンクリート表面のクラック検出方法
JP2001165864A (ja) * 1999-12-10 2001-06-22 Fuji Photo Film Co Ltd 表面検査装置及び方法
JP2001221745A (ja) * 2000-02-10 2001-08-17 Nippon Steel Corp 疵検査用照明装置
JP2002014058A (ja) * 2000-06-30 2002-01-18 Matsushita Electric Ind Co Ltd 検査方法及び装置
JP3580493B2 (ja) * 2000-08-11 2004-10-20 株式会社サキコーポレーション 走査ヘッドおよびそれを利用可能な外観検査方法および装置
JP4030716B2 (ja) * 2000-11-01 2008-01-09 シーケーディ株式会社 錠剤の外観検査装置およびｐｔｐ包装機
JP2002214144A (ja) * 2001-01-15 2002-07-31 Nippon Steel Corp 疵検査用照明装置
JP2004045592A (ja) * 2002-07-10 2004-02-12 Matsushita Electric Ind Co Ltd 球状体の観察装置
JP4387089B2 (ja) * 2002-08-30 2009-12-16 株式会社日立製作所 欠陥検査装置および欠陥検査方法
JP2004233189A (ja) * 2003-01-30 2004-08-19 Fujitsu Ltd 照明装置及び検査装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6211135A (ja) * 1985-06-24 1987-01-20 Hitachi Electronics Eng Co Ltd 透明試料板の表面検査装置
DE19838410A1 (de) * 1997-08-25 1999-03-25 Nippon Maxis Co Montageplattform für transparentes Substrat, Kratzerinspektionsvorrichtung für transparentes Substrat, Vorrichtung und Verfahren für die Abschrägungsinspektion eines transparenten Substrats und Verfahren zur Inspektion eines transparenten Substrats
WO2000011400A1 (fr) * 1998-08-24 2000-03-02 Intelligent Reasoning Systems, Inc. Systeme de dome lumineux et procede d'illumination d'objets visualises par des systemes d'imagerie
WO2000026647A1 (fr) * 1998-10-30 2000-05-11 Image Processing Systems Inc. Systeme d'inspection de verre

Also Published As

Publication number Publication date
CA2567061A1 (fr) 2005-12-08
CA2567061C (fr) 2015-06-16
KR20070083397A (ko) 2007-08-24
KR100907247B1 (ko) 2009-07-10
JP2008501105A (ja) 2008-01-17
CN1961208A (zh) 2007-05-09
DE102004026375B4 (de) 2007-03-22
JP4918032B2 (ja) 2012-04-18
US20070252996A1 (en) 2007-11-01
CN100590426C (zh) 2010-02-17
US7453563B2 (en) 2008-11-18
WO2005116616A1 (fr) 2005-12-08
DE102004026375A1 (de) 2005-12-22
NO20065925L (no) 2007-02-23
IL179385A0 (en) 2007-03-08
IL179385A (en) 2011-02-28

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