CA1227276A - Distortion inspection apparatus of a glass plate - Google Patents

Distortion inspection apparatus of a glass plate

Info

Publication number
CA1227276A
CA1227276A CA000469021A CA469021A CA1227276A CA 1227276 A CA1227276 A CA 1227276A CA 000469021 A CA000469021 A CA 000469021A CA 469021 A CA469021 A CA 469021A CA 1227276 A CA1227276 A CA 1227276A
Authority
CA
Canada
Prior art keywords
glass sheet
image data
scanning lines
dark
bits
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
CA000469021A
Other languages
English (en)
French (fr)
Inventor
Katsuhiko Kitaya
Nagayoshi Ichise
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.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co 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 Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Application granted granted Critical
Publication of CA1227276A publication Critical patent/CA1227276A/en
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
    • G01N21/95—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
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • 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
    • G01N21/8806—Specially adapted optical and illumination features
    • G01N2021/8829—Shadow projection or structured background, e.g. for deflectometry
    • G01N2021/8832—Structured background, e.g. for transparent objects
    • 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)
  • General 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)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
CA000469021A 1983-12-01 1984-11-30 Distortion inspection apparatus of a glass plate Expired CA1227276A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP227598/1983 1983-12-01
JP58227598A JPS60119404A (ja) 1983-12-01 1983-12-01 板ガラスの歪検査装置

Publications (1)

Publication Number Publication Date
CA1227276A true CA1227276A (en) 1987-09-22

Family

ID=16863436

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000469021A Expired CA1227276A (en) 1983-12-01 1984-11-30 Distortion inspection apparatus of a glass plate

Country Status (7)

Country Link
US (1) US4647197A (https=)
JP (1) JPS60119404A (https=)
CA (1) CA1227276A (https=)
DE (1) DE3443816A1 (https=)
FR (1) FR2556097B1 (https=)
GB (1) GB2152210B (https=)
MY (1) MY100429A (https=)

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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
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JPH0726833B2 (ja) * 1989-08-11 1995-03-29 旭硝子株式会社 湾曲板状体の形状検査装置
DE3937559A1 (de) * 1989-09-02 1991-03-14 Flachglas Ag Verfahren zum ermitteln von optischen fehlern in scheiben aus einem transparenten material, insbesondere aus glas
FR2663744B1 (fr) * 1990-06-25 1993-05-28 Saint Gobain Vitrage Int Procede et dispositif de mesure de la qualite optique d'un vitrage.
US5142648A (en) * 1990-08-02 1992-08-25 General Motors Corporation Method and apparatus for paint inspection
USH999H (en) 1990-09-13 1991-12-03 The United States Of America As Represented By The Secretary Of The Air Force Transparency distortion measurement process
FR2668599B1 (fr) * 1990-10-31 1992-12-31 Saint Gobain Vitrage Int Procede et dispositif de mesure de la qualite optique d'un vitrage.
US5184190A (en) * 1991-05-28 1993-02-02 Winzen International, Inc. Method and apparatus for detecting flaws and defects in heat seals
FR2688310A1 (fr) * 1992-03-03 1993-09-10 Saint Gobain Vitrage Int Procede et dispositif de controle de la transparence d'un vitrage feuillete.
US5446536A (en) * 1992-05-06 1995-08-29 Nippon Sheet Glass Co., Ltd. System of detecting optical distortion of a light-transmitting plate-like member
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
US5343288A (en) * 1992-11-23 1994-08-30 Libbey-Owens-Ford Co. Optical evaluation of automotive glass
US5471297A (en) * 1993-08-31 1995-11-28 Asahi Glass Company Ltd. Method of and apparatus for measuring optical distortion
US5445787A (en) * 1993-11-02 1995-08-29 Friedman; Ira Method of extruding refractory metals and alloys and an extruded product made thereby
FR2720831B3 (fr) * 1994-06-02 1996-07-12 Saint Gobain Vitrage Procédé de mesure de la qualité optique d'un vitrage.
US5642198A (en) * 1995-04-03 1997-06-24 Long; William R. Method of inspecting moving material
US5812260A (en) * 1995-10-16 1998-09-22 Corning Incorporated Method and system for measuring optical distortion
US5726749A (en) * 1996-09-20 1998-03-10 Libbey-Owens-Ford Co. Method and apparatus for inspection and evaluation of angular deviation and distortion defects for transparent sheets
DE29724139U1 (de) * 1996-10-18 2000-02-24 Innomess Gesellschaft für Messtechnik mbH, 45768 Marl Vorrichtung für die Ermittlung von optischen Fehlern in grossflächigen Scheiben
US6509967B1 (en) * 1996-10-18 2003-01-21 Innomess Gelsellschaft Fur Messtechnik Mbh Method for detecting optical errors in large surface panels
DE19741384A1 (de) * 1997-09-19 1999-03-25 Heuft Systemtechnik Gmbh Verfahren zum Erkennen von diffus streuenden Materialien, Verunreinigungen und sonstigen Fehlern bei transparenten Gegenständen
DE19813073A1 (de) * 1998-03-25 1999-09-30 Laser Sorter Gmbh Verfahren und Vorrichtung zur Bestimmung der optischen Qualität und zur Detektion von Fehlern von Flachglas und anderen optisch transparenten Materialien, insbesondere von Drips, Fäden und Linien
JP4108829B2 (ja) * 1998-07-02 2008-06-25 東芝ソリューション株式会社 厚み欠陥検査装置及びその検査方法
US6100990A (en) * 1999-06-14 2000-08-08 Ford Motor Company Method and apparatus for determining reflective optical quality using gray-scale patterns
US6208412B1 (en) * 1999-06-14 2001-03-27 Visteon Global Technologies, Inc. Method and apparatus for determining optical quality
WO2002018980A2 (en) * 2000-09-01 2002-03-07 Applied Process Technologies Optical system for imaging distortions in moving reflective sheets
GB0307345D0 (en) * 2003-03-29 2003-05-07 Pilkington Plc Glazing inspection
GB2408572A (en) * 2003-11-27 2005-06-01 Isis Innovation Method and apparatus for measuring surface configuration
US7365838B2 (en) * 2004-04-02 2008-04-29 Lockheed Martin Corporation System and method for the measurement of optical distortions
GB2415776B (en) * 2004-06-28 2009-01-28 Carglass Luxembourg Sarl Zug Investigation of vehicle glazing panels
GB0415916D0 (en) 2004-07-16 2004-08-18 Pilkington Plc Glazing inspection
JPWO2006095519A1 (ja) * 2005-03-07 2008-08-14 日本板硝子株式会社 光透過性パネルの透視歪検査装置および検査方法
JP4730836B2 (ja) 2005-09-15 2011-07-20 Ｊｆｅスチール株式会社 面歪の測定装置及び方法
GB0520251D0 (en) * 2005-10-05 2005-11-16 Isis Innovation Apparatus and method for measuring surface configuration
KR100749829B1 (ko) * 2006-05-26 2007-08-16 장민준 3차원 광측정장치
DE102006025312A1 (de) * 2006-05-31 2007-12-06 GM Global Technology Operations, Inc., Detroit Verfahren und Anordnung zur Erfassung der optischen Qualität einer transparenten Scheibe
JP2008116470A (ja) * 2007-12-25 2008-05-22 Olympus Corp 基板検査装置
CN101963586B (zh) * 2009-07-23 2014-05-07 林嘉宏 浮法玻璃在线波纹检测设备
JP2012150079A (ja) * 2011-01-21 2012-08-09 Canon Chemicals Inc 透明部材の欠陥検出装置及び欠陥検出方法
FR2971588B1 (fr) * 2011-02-11 2013-03-08 Peugeot Citroen Automobiles Sa Procede de detection de defaut optique dans un pare-brise
JP5594697B2 (ja) * 2012-02-22 2014-09-24 中日本高速道路株式会社 透視歪の測定方法
CN102706899B (zh) * 2012-06-05 2014-03-26 福耀玻璃工业集团股份有限公司 一种汽车玻璃副像检测系统及方法
DE102013105570A1 (de) * 2013-05-29 2014-12-04 Isra Surface Vision Gmbh Verfahren zur Bestimmung der Brechkraft eines transparenten Objekts sowie entsprechende Vorrichtung
DE102013216571A1 (de) * 2013-08-21 2015-02-26 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Detektieren von Flüssigkeiten auf einer Scheibe eines Fahrzeugs
US9799949B2 (en) * 2014-09-30 2017-10-24 Nidec Corporation On-vehicle radar device and vehicle
DE102017123243B4 (de) * 2017-10-06 2022-09-29 Webasto SE Verfahren zur Ausbildung eines Glaselements mit einem Trägerelement
FR3078161B1 (fr) 2018-02-22 2020-03-27 Saint-Gobain Glass France Methode de simulation de la puissance optique d'un verre feuillete
JP7180177B2 (ja) * 2018-07-31 2022-11-30 株式会社リコー ステレオカメラシステム、移動体及びステレオカメラ装置の形成方法
FR3090088B1 (fr) 2018-12-12 2021-06-18 Saint Gobain Procédé de mesure des écarts géométriques entre les surfaces incurvées d'une pluralité de matériaux à évaluer et une surface incurvée d’un matériau de référence
FR3101420B1 (fr) 2019-09-30 2023-12-29 Saint Gobain Méthode d’évaluation de la qualité optique d’une zone délimitée d’un vitrage
EP4092409A1 (en) 2021-05-20 2022-11-23 Saint-Gobain Glass France Method for detecting optical defects within windshield
EP4170327A1 (en) 2021-10-22 2023-04-26 Saint-Gobain Glass France Method and system for detecting optical defects within a glass windshield
EP4231001A1 (en) * 2022-02-16 2023-08-23 Carl Zeiss Vision International GmbH Testing device and testing method

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US2871756A (en) * 1953-12-28 1959-02-03 Northrop Aircraft Inc Mechano-optical method for inspecting transparent flat or contoured panels
US2902898A (en) * 1954-07-28 1959-09-08 Gen Dynamics Corp Optical inspection device for transparent sheet material
FR1308013A (fr) * 1961-09-20 1962-11-03 Saint Gobain Procédé et dispositif pour le contrôle des propriétés optiques des feuilles de verre et particulièrement des pare-brise
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JPS5676004A (en) * 1979-11-26 1981-06-23 Toyota Central Res & Dev Lab Inc Measuring device of flatness
US4310242A (en) * 1980-04-01 1982-01-12 The United States Of America As Represented By The Secretary Of The Air Force Field test unit for windscreen optical evaluation
JPS56166452A (en) * 1980-05-27 1981-12-21 Nippon Sheet Glass Co Ltd Detecting method for distortion defect of transparent plate
US4377341A (en) * 1981-03-11 1983-03-22 The United States Of America As Represented By The Secretary Of The Air Force System for measuring angular deviation in a transparency
DE3111728A1 (de) * 1981-03-25 1982-10-07 Philips Patentverwaltung Gmbh, 2000 Hamburg "pruefverfahren fuer werkstuecke"
DE3203984C2 (de) * 1982-02-05 1984-10-31 Siemens AG, 1000 Berlin und 8000 München Verfahren und Anordnung zur Darstellung der Abbildungsgüte von optischen Systemen
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DE3237511A1 (de) * 1982-10-09 1984-04-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Verfahren zur pruefung von glaserzeugnissen

Also Published As

Publication number Publication date
FR2556097B1 (fr) 1988-12-02
GB2152210B (en) 1987-04-23
GB2152210A (en) 1985-07-31
FR2556097A1 (fr) 1985-06-07
GB8430351D0 (en) 1985-01-09
JPS60119404A (ja) 1985-06-26
DE3443816A1 (de) 1985-06-13
MY100429A (en) 1990-09-29
US4647197A (en) 1987-03-03
JPH0314122B2 (https=) 1991-02-26

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Legal Events

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