GB517526A - Improvements in or relating to infra red and longer wave length radiating tubes - Google Patents

Improvements in or relating to infra red and longer wave length radiating tubes

Info

Publication number
GB517526A
GB517526A GB21602/38A GB2160238A GB517526A GB 517526 A GB517526 A GB 517526A GB 21602/38 A GB21602/38 A GB 21602/38A GB 2160238 A GB2160238 A GB 2160238A GB 517526 A GB517526 A GB 517526A
Authority
GB
United Kingdom
Prior art keywords
radiation
infra
wave length
red
producing
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
GB21602/38A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB517526A publication Critical patent/GB517526A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J63/00—Cathode-ray or electron-stream lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0031—Tubes with material luminescing under electron bombardment

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radiation-Therapy Devices (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Luminescent Compositions (AREA)
  • Discharge Lamp (AREA)
GB21602/38A 1937-07-24 1938-07-20 Improvements in or relating to infra red and longer wave length radiating tubes Expired GB517526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET48942D DE717988C (de) 1937-07-24 1937-07-24 Anordnung zur Nachrichtenuebermittlung mittels infraroter oder noch langwelligerer Strahlung

Publications (1)

Publication Number Publication Date
GB517526A true GB517526A (en) 1940-02-01

Family

ID=7562987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21602/38A Expired GB517526A (en) 1937-07-24 1938-07-20 Improvements in or relating to infra red and longer wave length radiating tubes

Country Status (3)

Country Link
US (1) US2222668A (de)
DE (1) DE717988C (de)
GB (1) GB517526A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424454A (en) * 1944-09-25 1947-07-22 Gen Electric Infrared generator
EP1498931A1 (de) * 2002-04-17 2005-01-19 Alexandr Nikolaevich Obraztsov Kathodolumineszente lichtquelle

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763814A (en) * 1952-04-22 1956-09-18 Sebel S A Electronic fluorescent illuminating lamp
US2783407A (en) * 1952-06-28 1957-02-26 Vierkotter Paul Source of light
US2808528A (en) * 1952-11-01 1957-10-01 Sylvania Electric Prod Electron discharge device and mounting
US2830214A (en) * 1954-01-16 1958-04-08 Sebel S A Electronic fluorescent illuminating lamp
US2839700A (en) * 1955-01-15 1958-06-17 Sebel S A Soc Electronic illuminating lamps
FR1146600A (fr) * 1955-12-09 1957-11-13 Centre Nat Rech Scient Lampes à résonance, à très basse tension
US3015044A (en) * 1956-11-19 1961-12-26 Sylvania Electric Prod Electroluminescent lamp
US2907909A (en) * 1957-07-05 1959-10-06 Du Mont Allen B Lab Inc Light source
US2955221A (en) * 1959-04-02 1960-10-04 Duro Test Corp Cold cathode light source
US3109818A (en) * 1959-08-11 1963-11-05 Philips Corp Infrared phosphors using vanadium as an activator
US3039972A (en) * 1961-01-11 1962-06-19 Westinghouse Electric Corp Electroluminescent phosphor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424454A (en) * 1944-09-25 1947-07-22 Gen Electric Infrared generator
EP1498931A1 (de) * 2002-04-17 2005-01-19 Alexandr Nikolaevich Obraztsov Kathodolumineszente lichtquelle
EP1498931A4 (de) * 2002-04-17 2007-05-30 Alexandr Nikolaevich Obraztsov Kathodolumineszente lichtquelle
US7683530B2 (en) 2002-04-17 2010-03-23 Alexandr Nikolaevich Obraztsov Cathodoluminescent light source having an electron field emitter coated with nanocarbon film material

Also Published As

Publication number Publication date
DE717988C (de) 1942-02-27
US2222668A (en) 1940-11-26

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