FR2422933A1 - Dispositif optique pour determiner l'angle de sortie des rayons lumineux dans une bande de materiau balayee par un spot lumineux - Google Patents

Dispositif optique pour determiner l'angle de sortie des rayons lumineux dans une bande de materiau balayee par un spot lumineux

Info

Publication number
FR2422933A1
FR2422933A1 FR7900035A FR7900035A FR2422933A1 FR 2422933 A1 FR2422933 A1 FR 2422933A1 FR 7900035 A FR7900035 A FR 7900035A FR 7900035 A FR7900035 A FR 7900035A FR 2422933 A1 FR2422933 A1 FR 2422933A1
Authority
FR
France
Prior art keywords
optical device
light rays
determining
band
exit angle
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.)
Granted
Application number
FR7900035A
Other languages
English (en)
Other versions
FR2422933B1 (fr
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.)
Erwin Sick GmbH Optik Elektronik
Original Assignee
Erwin Sick GmbH Optik Elektronik
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 Erwin Sick GmbH Optik Elektronik filed Critical Erwin Sick GmbH Optik Elektronik
Publication of FR2422933A1 publication Critical patent/FR2422933A1/fr
Application granted granted Critical
Publication of FR2422933B1 publication Critical patent/FR2422933B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (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)

Abstract

Dispositif optique pour la détermination d'angles de sortie de rayons lumineux avec une bande de matériau balayée par un spot. Derrière une lentille cylindrique 12 est disposé un miroir cylindrique 13 en forme de bande, parallèle à a lentille, dont l'axe est perpendiculaire à l'axe de la lentille. Dans le plan focal de ce miroir se trouve un dispositif récepteur 20 contenant des récepteurs photo-électriques 14 à l'endroit où est concentrée la lumière sortant sous l'angle spatial prédéterminé. Application notamment à la détection des défauts de surface de bandes de tôle laminée.
FR7900035A 1978-01-04 1979-01-02 Dispositif optique pour determiner l'angle de sortie des rayons lumineux dans une bande de materiau balayee par un spot lumineux Granted FR2422933A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2800351A DE2800351B2 (de) 1978-01-04 1978-01-04 Optische Vorrichtung zur Bestimmung des Lichtaustrittswinkels bei einer mit einem Lichtfleck abgetasteten Materialbahn

Publications (2)

Publication Number Publication Date
FR2422933A1 true FR2422933A1 (fr) 1979-11-09
FR2422933B1 FR2422933B1 (fr) 1984-03-02

Family

ID=6028981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900035A Granted FR2422933A1 (fr) 1978-01-04 1979-01-02 Dispositif optique pour determiner l'angle de sortie des rayons lumineux dans une bande de materiau balayee par un spot lumineux

Country Status (6)

Country Link
US (1) US4248537A (fr)
JP (1) JPS5497475A (fr)
DE (1) DE2800351B2 (fr)
FR (1) FR2422933A1 (fr)
GB (1) GB2023868B (fr)
SE (1) SE428973B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827705C3 (de) * 1978-06-23 1981-07-30 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Gerät zur Feststellung von Fehlern an Bahnmaterial
DE2827704C3 (de) * 1978-06-23 1981-03-19 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optische Vorrichtung zur Bestimmung der Lichtaustrittswinkel
SE440405B (sv) * 1979-03-02 1985-07-29 Svenska Textilforskningsinst Anordning for bestemning av riktningsfordelningen av fibrer i planet for ett dukformigt material
DE3006072C2 (de) * 1980-02-19 1984-11-29 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Fehlstellenermittlungsvorrichtung für Materialbahnen
DE3037622C2 (de) * 1980-10-04 1987-02-26 Theodor Prof. Dr.-Ing. 1000 Berlin Gast Einrichtung zur Bestimmung der Oberflächengüte
DE3307591C2 (de) * 1983-03-03 1986-06-05 Kraftwerk Union AG, 4330 Mülheim Verfahren zur optischen Kontrolle der Oberfläche eines Prüfgutes
DE3472300D1 (en) * 1983-04-22 1988-07-28 Sick Optik Elektronik Erwin Device for the detection of faults
DE3411934C2 (de) * 1983-04-22 1986-04-24 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Fehlerfeststellungsvorrichtung
DE3408106A1 (de) * 1984-03-05 1985-09-12 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optischer rauheits-scanner
DE3428435A1 (de) * 1984-08-01 1986-02-06 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Rauheitssonde
US5448364A (en) * 1993-03-22 1995-09-05 Estek Corporation Particle detection system with reflective line-to-spot collector
EP1241466A1 (fr) * 2001-03-13 2002-09-18 Daniel Malaise Dispositif et procédé optoélectronique de mesure en temps réel de la lumière diffusée par une surface en défilement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574469A (en) * 1964-06-15 1971-04-13 Eastman Kodak Co Fault-detecting surface scanner using a laser light source
DE2051908A1 (de) * 1970-10-22 1972-04-27 Licentia Gmbh Photoelektronische Oberflachenabtast einrichtung
US3814945A (en) * 1971-03-09 1974-06-04 Sira Institute Apparatus for automatic inspection of materials
US3845297A (en) * 1972-01-28 1974-10-29 Hitachi Electronics Light receiver

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL279098A (fr) * 1961-05-31
US3618063A (en) * 1970-02-11 1971-11-02 Eastman Kodak Co Defect inspection apparatus
GB1347777A (en) * 1970-12-12 1974-02-27 Sick Optik Elektronik Erwin Photoelectric length measuring apparatus
JPS5035437A (fr) * 1973-07-31 1975-04-04
US3866054A (en) * 1973-09-28 1975-02-11 Du Pont Defect size discriminator circuit for web inspection system
US3919531A (en) * 1974-05-16 1975-11-11 Libbey Owens Ford Co Method of and apparatus for inspecting the contours of moving bent articles
GB1496765A (en) * 1974-12-19 1978-01-05 Ciba Geigy Ag Examining sheet material photoelectrically
JPS5210793A (en) * 1975-07-15 1977-01-27 Yaskawa Electric Mfg Co Ltd Fault detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574469A (en) * 1964-06-15 1971-04-13 Eastman Kodak Co Fault-detecting surface scanner using a laser light source
DE2051908A1 (de) * 1970-10-22 1972-04-27 Licentia Gmbh Photoelektronische Oberflachenabtast einrichtung
US3814945A (en) * 1971-03-09 1974-06-04 Sira Institute Apparatus for automatic inspection of materials
US3845297A (en) * 1972-01-28 1974-10-29 Hitachi Electronics Light receiver

Also Published As

Publication number Publication date
JPS5497475A (en) 1979-08-01
JPS638420B2 (fr) 1988-02-23
DE2800351C3 (fr) 1980-07-31
SE428973B (sv) 1983-08-01
US4248537A (en) 1981-02-03
GB2023868A (en) 1980-01-03
SE7813256L (sv) 1979-07-05
DE2800351B2 (de) 1979-11-15
GB2023868B (en) 1982-06-23
FR2422933B1 (fr) 1984-03-02
DE2800351A1 (de) 1979-07-05

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Legal Events

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