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FR1347223A - Method and device for detecting a pattern on a translucent sheet - Google Patents

Method and device for detecting a pattern on a translucent sheet

Info

Publication number
FR1347223A
FR1347223A FR915676A FR915676A FR1347223A FR 1347223 A FR1347223 A FR 1347223A FR 915676 A FR915676 A FR 915676A FR 915676 A FR915676 A FR 915676A FR 1347223 A FR1347223 A FR 1347223A
Authority
FR
France
Prior art keywords
pattern
detecting
translucent sheet
translucent
sheet
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
FR915676A
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain 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
Priority to BE639792D priority Critical patent/BE639792A/xx
Application filed by Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Priority to FR915676A priority patent/FR1347223A/en
Priority to ES0293559A priority patent/ES293559A1/en
Priority to GB4543763A priority patent/GB988440A/en
Application granted granted Critical
Publication of FR1347223A publication Critical patent/FR1347223A/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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity

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)
  • Geophysics And Detection Of Objects (AREA)
FR915676A 1962-11-16 1962-11-16 Method and device for detecting a pattern on a translucent sheet Expired FR1347223A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE639792D BE639792A (en) 1962-11-16
FR915676A FR1347223A (en) 1962-11-16 1962-11-16 Method and device for detecting a pattern on a translucent sheet
ES0293559A ES293559A1 (en) 1962-11-16 1963-11-15 Method and apparatus for detecting a mark on a translucent sheet
GB4543763A GB988440A (en) 1962-11-16 1963-11-18 Method and apparatus for detecting a mark on a translucent sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR915676A FR1347223A (en) 1962-11-16 1962-11-16 Method and device for detecting a pattern on a translucent sheet

Publications (1)

Publication Number Publication Date
FR1347223A true FR1347223A (en) 1963-12-27

Family

ID=8790964

Family Applications (1)

Application Number Title Priority Date Filing Date
FR915676A Expired FR1347223A (en) 1962-11-16 1962-11-16 Method and device for detecting a pattern on a translucent sheet

Country Status (4)

Country Link
BE (1) BE639792A (en)
ES (1) ES293559A1 (en)
FR (1) FR1347223A (en)
GB (1) GB988440A (en)

Also Published As

Publication number Publication date
ES293559A1 (en) 1964-04-16
BE639792A (en)
GB988440A (en) 1965-04-07

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