ES372099A1 - Un aparato para detectar defectos en una lamina de vidrio. - Google Patents

Un aparato para detectar defectos en una lamina de vidrio.

Info

Publication number
ES372099A1
ES372099A1 ES372099A ES372099A ES372099A1 ES 372099 A1 ES372099 A1 ES 372099A1 ES 372099 A ES372099 A ES 372099A ES 372099 A ES372099 A ES 372099A ES 372099 A1 ES372099 A1 ES 372099A1
Authority
ES
Spain
Prior art keywords
radiation sensitive
transparent materials
light
sensitive defect
defect scanner
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
ES372099A
Other languages
English (en)
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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Publication of ES372099A1 publication Critical patent/ES372099A1/es
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • 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)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
ES372099A 1968-11-29 1969-10-02 Un aparato para detectar defectos en una lamina de vidrio. Expired ES372099A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77972968A 1968-11-29 1968-11-29

Publications (1)

Publication Number Publication Date
ES372099A1 true ES372099A1 (es) 1971-09-01

Family

ID=25117352

Family Applications (2)

Application Number Title Priority Date Filing Date
ES372099A Expired ES372099A1 (es) 1968-11-29 1969-10-02 Un aparato para detectar defectos en una lamina de vidrio.
ES372098A Expired ES372098A1 (es) 1968-11-29 1969-10-02 Un procedimiento para detectar defectos en material en la- mina de vidrio.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES372098A Expired ES372098A1 (es) 1968-11-29 1969-10-02 Un procedimiento para detectar defectos en material en la- mina de vidrio.

Country Status (13)

Country Link
US (1) US3609380A (es)
JP (1) JPS537826B1 (es)
BE (1) BE742369A (es)
BR (1) BR6914564D0 (es)
CA (1) CA921300A (es)
CS (1) CS178809B2 (es)
DE (1) DE1959815C3 (es)
ES (2) ES372099A1 (es)
FR (1) FR2046047A5 (es)
GB (1) GB1274297A (es)
NL (1) NL6917148A (es)
PL (1) PL87133B1 (es)
ZA (1) ZA696525B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4984458A (es) * 1972-12-18 1974-08-14
US3871773A (en) * 1973-04-24 1975-03-18 Ppg Industries Inc Method of and apparatus for detecting defects and the position thereof in transparent articles
DE2444644A1 (de) * 1974-09-18 1976-04-08 Dihaco Diamanten Handels Co Verfahren und vorrichtung zur ermittlung und groessenbestimmung von einschluessen in edelsteinen
DE2550815C3 (de) * 1975-11-12 1979-05-31 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Optisches Abtastsystem
US4097151A (en) * 1976-03-16 1978-06-27 Ppg Industries, Inc. Method of and apparatus for locating B type and point type defects in a glass ribbon
DE3338802A1 (de) * 1983-10-26 1985-05-09 Feldmühle AG, 4000 Düsseldorf Vorrichtung und verfahren zum pruefen von materialbahnen
US4665392A (en) * 1984-11-13 1987-05-12 Ppg Industries, Inc. Method of and apparatus for detecting presence of a mark on a transparent substrate

Also Published As

Publication number Publication date
FR2046047A5 (es) 1971-03-05
CA921300A (en) 1973-02-20
NL6917148A (es) 1970-06-02
ZA696525B (en) 1971-04-28
DE1959815C3 (de) 1980-02-07
GB1274297A (en) 1972-05-17
DE1959815B2 (de) 1978-06-29
BR6914564D0 (pt) 1973-01-25
ES372098A1 (es) 1971-09-01
CS178809B2 (en) 1977-10-31
DE1959815A1 (de) 1970-09-03
PL87133B1 (es) 1976-06-30
BE742369A (es) 1970-05-28
US3609380A (en) 1971-09-28
JPS537826B1 (es) 1978-03-22

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