DE3263483D1 - Method for the detection of defects in glass sheets, and device for carrying out such a method - Google Patents

Method for the detection of defects in glass sheets, and device for carrying out such a method

Info

Publication number
DE3263483D1
DE3263483D1 DE8282400257T DE3263483T DE3263483D1 DE 3263483 D1 DE3263483 D1 DE 3263483D1 DE 8282400257 T DE8282400257 T DE 8282400257T DE 3263483 T DE3263483 T DE 3263483T DE 3263483 D1 DE3263483 D1 DE 3263483D1
Authority
DE
Germany
Prior art keywords
flaw
captor
dirt
sheet
glass sheets
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.)
Expired
Application number
DE8282400257T
Other languages
German (de)
English (en)
Inventor
Jacques Francois Leser
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.)
Alstom SA
Original Assignee
Compagnie Electro Mecanique SA
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 Compagnie Electro Mecanique SA filed Critical Compagnie Electro Mecanique SA
Application granted granted Critical
Publication of DE3263483D1 publication Critical patent/DE3263483D1/de
Expired 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
    • G01N21/892—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
    • 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
    • G01N21/95—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
    • G01N2021/9586—Windscreens

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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
DE8282400257T 1981-02-25 1982-02-15 Method for the detection of defects in glass sheets, and device for carrying out such a method Expired DE3263483D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8104139A FR2500630A1 (fr) 1981-02-25 1981-02-25 Procede pour la recherche des defauts des feuilles de verre et dispositif mettant en oeuvre ce procede

Publications (1)

Publication Number Publication Date
DE3263483D1 true DE3263483D1 (en) 1985-06-20

Family

ID=9255777

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8282400257T Expired DE3263483D1 (en) 1981-02-25 1982-02-15 Method for the detection of defects in glass sheets, and device for carrying out such a method
DE198282400257T Pending DE60160T1 (de) 1981-02-25 1982-02-15 Verfahren zur untersuchung von fehlern an glasbahnen und einrichtung zur ausfuehrung dieses verfahrens.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE198282400257T Pending DE60160T1 (de) 1981-02-25 1982-02-15 Verfahren zur untersuchung von fehlern an glasbahnen und einrichtung zur ausfuehrung dieses verfahrens.

Country Status (7)

Country Link
US (1) US4492477A (enExample)
EP (1) EP0060160B1 (enExample)
JP (1) JPS57160049A (enExample)
AT (1) ATE13354T1 (enExample)
CA (1) CA1197915A (enExample)
DE (2) DE3263483D1 (enExample)
FR (1) FR2500630A1 (enExample)

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DE3325125C1 (de) * 1983-07-12 1985-02-14 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Anordnung zur Markierung von Fehlstellen an schnell laufenden Materialbahnen
FR2571143B1 (fr) * 1984-10-02 1988-03-25 Languedoc Verrerie Procede et dispositif de controle sans contact d'objets fabriques automatiquement a haute cadence
EP0189551B1 (de) * 1984-12-14 1988-10-26 Flachglas Aktiengesellschaft Verfahren und Vorrichtung zum Prüfen von transparenten Materialbahnen, insbesondere Flachglasbändern
JPS62138740A (ja) * 1985-12-13 1987-06-22 Hiyuutec:Kk シ−ト面の欠陥検出方法
US4794265A (en) * 1987-05-08 1988-12-27 Qc Optics, Inc. Surface pit detection system and method
US4794264A (en) * 1987-05-08 1988-12-27 Qc Optics, Inc. Surface defect detection and confirmation system and method
JPH01169343A (ja) * 1987-12-25 1989-07-04 Nippon Sheet Glass Co Ltd ガラス板の切口欠点検出装置
DE3816392A1 (de) * 1988-05-13 1989-11-23 Ver Glaswerke Gmbh Verfahren zur bestimmung der optischen qualitaet von flachglas oder flachglasprodukten
US4954891A (en) * 1988-07-11 1990-09-04 Process Automation Business, Inc. Light guided illuminating/sectioning device for sheet inspection system
FR2637067B1 (fr) * 1988-09-23 1991-07-05 Sgn Soc Gen Tech Nouvelle Dispositif de determination de la forme du bord d'un objet galbe
US4914285A (en) * 1988-12-27 1990-04-03 Eastman Kodak Company Control means for web scanning apparatus
JP2795595B2 (ja) * 1992-06-26 1998-09-10 セントラル硝子株式会社 透明板状体の欠点検出方法
JP3178644B2 (ja) * 1995-02-10 2001-06-25 セントラル硝子株式会社 透明板状体の欠点検出方法
US5642198A (en) * 1995-04-03 1997-06-24 Long; William R. Method of inspecting moving material
US5696591A (en) * 1996-01-05 1997-12-09 Eastman Kodak Company Apparatus and method for detecting longitudinally oriented flaws in a moving web
SE9601800D0 (sv) * 1996-05-13 1996-05-13 Svante Bjoerk Ab Anordning och metod för detektering av defekter
WO1997046329A1 (en) * 1996-06-04 1997-12-11 Inex, Inc. Doing Business As Inex Vision Systems, Inc. System and method for stress detection in a molded container
SE511822C2 (sv) 1996-11-13 1999-11-29 Svante Bjoerk Ab Anordning och metod för att markera defekter på en transparent remsa
WO1998034096A1 (en) * 1997-01-31 1998-08-06 Medar, Inc. Method and system for detecting defects in transparent objects having spatial variations in their optical density
US6115118A (en) * 1997-08-25 2000-09-05 Northstar Automotive Glass, Inc. Vehicle windshield scanning system
US6011620A (en) * 1998-04-06 2000-01-04 Northrop Grumman Corporation Method and apparatus for the automatic inspection of optically transmissive planar objects
CA2252308C (en) 1998-10-30 2005-01-04 Image Processing Systems, Inc. Glass inspection system
US6359686B1 (en) * 1999-06-29 2002-03-19 Corning Incorporated Inspection system for sheet material
US6633377B1 (en) 2000-04-20 2003-10-14 Image Processing Systems Inc. Dark view inspection system for transparent media
US6501546B1 (en) 2000-05-05 2002-12-31 Photon Dynamics Canada Inc. Inspection system for edges of glass
US6512239B1 (en) 2000-06-27 2003-01-28 Photon Dynamics Canada Inc. Stereo vision inspection system for transparent media
CA2455934A1 (en) * 2001-07-31 2003-02-13 Mark Thomas Emley Control system for helium recovery
DE10316707B4 (de) * 2003-04-04 2006-04-27 Schott Ag Verfahren und Vorrichtung zur Erkennung von Fehlern in transparentem Material
EP1553403B1 (de) * 2004-01-07 2006-10-04 Volker Dipl.-Ing. Schaft Verfahren und Einrichtung zum Überprüfen eines Glasschutzrohres für die Glühwendel einer Infrarotstrahlerwärmequelle auf Unversertheit
GB2415776B (en) * 2004-06-28 2009-01-28 Carglass Luxembourg Sarl Zug Investigation of vehicle glazing panels
CN101010580A (zh) * 2004-08-27 2007-08-01 筑波精工株式会社 运送检查装置及运送装置
KR101332786B1 (ko) * 2005-02-18 2013-11-25 쇼오트 아게 결함 검출 및/또는 분류 방법 및 장치
JP4628824B2 (ja) * 2005-03-10 2011-02-09 富士フイルム株式会社 フイルムの欠陥検査装置及びフイルムの製造方法
US7283227B2 (en) * 2005-11-21 2007-10-16 Corning Incorporated Oblique transmission illumination inspection system and method for inspecting a glass sheet
GB0606217D0 (en) * 2006-03-29 2006-05-10 Pilkington Plc Glazing inspection
US7369240B1 (en) 2006-07-20 2008-05-06 Litesentry Corporation Apparatus and methods for real-time adaptive inspection for glass production
GB0702937D0 (en) * 2007-02-15 2007-03-28 Pilkington Group Ltd Glazing inspection
US7551274B1 (en) 2007-02-28 2009-06-23 Lite Sentry Corporation Defect detection lighting system and methods for large glass sheets
KR101209857B1 (ko) * 2009-02-20 2012-12-10 삼성코닝정밀소재 주식회사 유리 표면 이물 검사 장치 및 방법
US8821211B2 (en) 2010-04-21 2014-09-02 Lg Chem, Ltd. Device for cutting of glass sheet
DE102010046433B4 (de) * 2010-09-24 2012-06-21 Grenzebach Maschinenbau Gmbh Vorrichtung und Verfahren zum Detektieren von Fehlstellen in kontinuierlich erzeugtem Float-Glas
CN102175690B (zh) * 2011-01-24 2012-11-28 宁波大学 一种红外玻璃内部宏观缺陷检测装置
DE102013002602B4 (de) 2013-02-15 2022-05-05 Hegla Boraident Gmbh & Co. Kg Verfahren und Vorrichtung zur Detektion von Partikeln in Glas
GB201303324D0 (en) * 2013-02-25 2013-04-10 Subterandt Ltd Passive detection of deformation under coatings
US9750832B2 (en) * 2015-01-26 2017-09-05 E & C Manufacturing, LLC Ultraviolet and misting disinfecting unit
EP3076164A1 (fr) * 2015-04-03 2016-10-05 AGC Glass Europe Procédé de contrôle de verre plat
KR102499831B1 (ko) * 2016-05-23 2023-02-14 코닝 인코포레이티드 글라스 시트의 무중력 형상 예측 방법 및 무중력 형상 기반 글라스 시트 품질 관리 방법
CN113167561B (zh) * 2018-09-19 2023-12-22 康宁股份有限公司 使用边缘缺陷量规测量玻璃片的边缘缺陷尺寸的方法及相应的边缘缺陷量规
WO2020231683A1 (en) * 2019-05-15 2020-11-19 Corning Incorporated Edge strength testing methods and apparatus
CN112881428B (zh) * 2021-01-20 2024-08-09 苏州协同创新智能制造装备有限公司 一种基于激光测距的曲面屏幕边缘外弧缺陷检测的方法
AT527029B1 (de) 2023-04-21 2024-10-15 Anton Paar Gmbh Vorrichtung und Verfahren zur Charakterisierung einer Probe und insbesondere zur Charakterisierung eines Probenbehälters
CN118688121B (zh) * 2024-08-22 2024-12-13 菲特（天津）检测技术有限公司 一种镜片检测系统及检测方法

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US2803755A (en) * 1954-12-16 1957-08-20 Gen Electric Automatic inspection gage
US3533706A (en) * 1966-05-02 1970-10-13 Libbey Owens Ford Glass Co Inspecting glass
US3445672A (en) * 1966-08-15 1969-05-20 Philco Ford Corp Flaw detection and marking system
BE699861A (enExample) * 1967-06-13 1967-11-16
FR2157041A5 (enExample) * 1971-10-15 1973-06-01 Saint Gobain
US3814946A (en) * 1972-12-04 1974-06-04 Asahi Glass Co Ltd Method of detecting defects in transparent and semitransparent bodies
US3792930A (en) * 1973-05-31 1974-02-19 Ppg Industries Inc System for determining the nature of optical distortion in glass
US3877821A (en) * 1973-07-23 1975-04-15 Inex Inc Apparatus for detecting flaws using an array of photo sensitive devices
US3932042A (en) * 1974-05-20 1976-01-13 Barry-Wehmiller Company Container inspection apparatus and method of inspection
US4038554A (en) * 1976-03-09 1977-07-26 Columbia Research Corporation Detection of flaws in a moving web of transparent material
FR2406916A1 (fr) * 1977-10-18 1979-05-18 Ibm France Systeme de transmission de donnees decentralise
JPS5459982A (en) * 1977-10-20 1979-05-15 Nippon Sheet Glass Co Ltd Device for identifying glass plate default type
US4223346A (en) * 1979-04-05 1980-09-16 Armco Inc. Automatic defect detecting inspection apparatus
US4308959A (en) * 1979-05-30 1982-01-05 Geosource Inc. Roll sorting apparatus

Also Published As

Publication number Publication date
FR2500630A1 (fr) 1982-08-27
FR2500630B1 (enExample) 1984-10-05
CA1197915A (en) 1985-12-10
US4492477A (en) 1985-01-08
EP0060160A1 (fr) 1982-09-15
EP0060160B1 (fr) 1985-05-15
ATE13354T1 (de) 1985-06-15
DE60160T1 (de) 1983-04-28
JPS57160049A (en) 1982-10-02

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: ALSTHOM, PARIS, FR

8328 Change in the person/name/address of the agent

Free format text: WEINMILLER, J., DIPL.-ING., PAT.-ANW., 8133 FELDAFING

8339 Ceased/non-payment of the annual fee