FR974768A - Optical device for detecting existing defects in transparent materials - Google Patents

Optical device for detecting existing defects in transparent materials

Info

Publication number
FR974768A
FR974768A FR974768DA FR974768A FR 974768 A FR974768 A FR 974768A FR 974768D A FR974768D A FR 974768DA FR 974768 A FR974768 A FR 974768A
Authority
FR
France
Prior art keywords
optical device
transparent materials
existing defects
detecting existing
detecting
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
Other languages
French (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.)
Anciens Etablissements Barbier Benard and Turenne SA
Original Assignee
Anciens Etablissements Barbier Benard and Turenne 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 Anciens Etablissements Barbier Benard and Turenne SA filed Critical Anciens Etablissements Barbier Benard and Turenne SA
Application granted granted Critical
Publication of FR974768A publication Critical patent/FR974768A/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
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details

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)
FR974768D 1947-11-27 1948-11-09 Optical device for detecting existing defects in transparent materials Expired FR974768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT974768X 1947-11-27

Publications (1)

Publication Number Publication Date
FR974768A true FR974768A (en) 1951-02-26

Family

ID=11332802

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974768D Expired FR974768A (en) 1947-11-27 1948-11-09 Optical device for detecting existing defects in transparent materials

Country Status (1)

Country Link
FR (1) FR974768A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902898A (en) * 1954-07-28 1959-09-08 Gen Dynamics Corp Optical inspection device for transparent sheet material
DE1135201B (en) * 1959-04-22 1962-08-23 Meyer Geo J Mfg Co Control device for the detection of foreign bodies in a translucent container with means for illuminating a zone of the container to be controlled
US3124637A (en) * 1964-03-10 Apparatus for examining prestressed glass
US3199401A (en) * 1959-11-02 1965-08-10 Pittsburgh Plate Glass Co Method and apparatus for optically detecting elongated defects in glass
DE1241154B (en) * 1959-11-02 1967-05-24 Pittsburgh Plate Glass Co Method and device for determining defects in sheet glass
DE1297892B (en) * 1963-04-23 1969-06-19 Lippke Paul Device for electro-optical testing of moving webs or sheets

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124637A (en) * 1964-03-10 Apparatus for examining prestressed glass
US2902898A (en) * 1954-07-28 1959-09-08 Gen Dynamics Corp Optical inspection device for transparent sheet material
DE1135201B (en) * 1959-04-22 1962-08-23 Meyer Geo J Mfg Co Control device for the detection of foreign bodies in a translucent container with means for illuminating a zone of the container to be controlled
US3199401A (en) * 1959-11-02 1965-08-10 Pittsburgh Plate Glass Co Method and apparatus for optically detecting elongated defects in glass
DE1241154B (en) * 1959-11-02 1967-05-24 Pittsburgh Plate Glass Co Method and device for determining defects in sheet glass
DE1297892B (en) * 1963-04-23 1969-06-19 Lippke Paul Device for electro-optical testing of moving webs or sheets

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