FR2272391A1 - Detector device for stamps phosphorescence - has discharge tubes and detector using opposite half cycles of AC - Google Patents

Detector device for stamps phosphorescence - has discharge tubes and detector using opposite half cycles of AC

Info

Publication number
FR2272391A1
FR2272391A1 FR7417650A FR7417650A FR2272391A1 FR 2272391 A1 FR2272391 A1 FR 2272391A1 FR 7417650 A FR7417650 A FR 7417650A FR 7417650 A FR7417650 A FR 7417650A FR 2272391 A1 FR2272391 A1 FR 2272391A1
Authority
FR
France
Prior art keywords
detector
phosphorescence
channel
stamps
excitation
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
FR7417650A
Other languages
English (en)
French (fr)
Other versions
FR2272391B1 (https=
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.)
PLANELLE JEAN FR
Original Assignee
PLANELLE JEAN FR
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 PLANELLE JEAN FR filed Critical PLANELLE JEAN FR
Priority to FR7417650A priority Critical patent/FR2272391A1/fr
Publication of FR2272391A1 publication Critical patent/FR2272391A1/fr
Application granted granted Critical
Publication of FR2272391B1 publication Critical patent/FR2272391B1/fr
Granted 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence

Landscapes

  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (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, Analyzing Materials By Fluorescence Or Luminescence (AREA)
FR7417650A 1974-05-21 1974-05-21 Detector device for stamps phosphorescence - has discharge tubes and detector using opposite half cycles of AC Granted FR2272391A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7417650A FR2272391A1 (en) 1974-05-21 1974-05-21 Detector device for stamps phosphorescence - has discharge tubes and detector using opposite half cycles of AC

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7417650A FR2272391A1 (en) 1974-05-21 1974-05-21 Detector device for stamps phosphorescence - has discharge tubes and detector using opposite half cycles of AC

Publications (2)

Publication Number Publication Date
FR2272391A1 true FR2272391A1 (en) 1975-12-19
FR2272391B1 FR2272391B1 (https=) 1977-03-11

Family

ID=9139115

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7417650A Granted FR2272391A1 (en) 1974-05-21 1974-05-21 Detector device for stamps phosphorescence - has discharge tubes and detector using opposite half cycles of AC

Country Status (1)

Country Link
FR (1) FR2272391A1 (https=)

Also Published As

Publication number Publication date
FR2272391B1 (https=) 1977-03-11

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Legal Events

Date Code Title Description
ST Notification of lapse