FR697130A - Process for the manufacture of vacuum lamps with multiple systems, by the vaporization process - Google Patents

Process for the manufacture of vacuum lamps with multiple systems, by the vaporization process

Info

Publication number
FR697130A
FR697130A FR697130DA FR697130A FR 697130 A FR697130 A FR 697130A FR 697130D A FR697130D A FR 697130DA FR 697130 A FR697130 A FR 697130A
Authority
FR
France
Prior art keywords
manufacture
multiple systems
vaporization
vacuum lamps
lamps
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)
Inventor
Siegmund Loewe
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 filed Critical
Application granted granted Critical
Publication of FR697130A publication Critical patent/FR697130A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Physical Vapour Deposition (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Electron Sources, Ion Sources (AREA)
FR697130D 1929-06-07 1930-06-06 Process for the manufacture of vacuum lamps with multiple systems, by the vaporization process Expired FR697130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL75324D DE628900C (en) 1929-06-07 1929-06-07 Process for the production of high-emissivity cathodes in multi-system tubes

Publications (1)

Publication Number Publication Date
FR697130A true FR697130A (en) 1931-01-12

Family

ID=34876961

Family Applications (1)

Application Number Title Priority Date Filing Date
FR697130D Expired FR697130A (en) 1929-06-07 1930-06-06 Process for the manufacture of vacuum lamps with multiple systems, by the vaporization process

Country Status (7)

Country Link
US (1) US1990041A (en)
AT (1) AT130795B (en)
BE (1) BE370899A (en)
DE (1) DE628900C (en)
FR (1) FR697130A (en)
GB (1) GB353624A (en)
NL (1) NL30240C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682619A (en) * 1948-08-19 1954-06-29 Sylvania Electric Prod Cold cathode gas discharge tube
US2635201A (en) * 1949-09-30 1953-04-14 Rca Corp Electronic discharge device
US2758239A (en) * 1952-09-13 1956-08-07 Varian Associates Getter and method of making same
US2845324A (en) * 1954-12-03 1958-07-29 Itt Gas discharge tube
US2834905A (en) * 1956-03-28 1958-05-13 Bendix Aviat Corp Electron discharge device

Also Published As

Publication number Publication date
GB353624A (en) 1931-07-30
US1990041A (en) 1935-02-05
AT130795B (en) 1932-12-10
BE370899A (en)
DE628900C (en) 1936-04-18
NL30240C (en)

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