CH207265A - A method of manufacturing a discharge tube having a secondary emission electrode and a discharge tube manufactured by this method. - Google Patents

A method of manufacturing a discharge tube having a secondary emission electrode and a discharge tube manufactured by this method.

Info

Publication number
CH207265A
CH207265A CH207265DA CH207265A CH 207265 A CH207265 A CH 207265A CH 207265D A CH207265D A CH 207265DA CH 207265 A CH207265 A CH 207265A
Authority
CH
Switzerland
Prior art keywords
discharge tube
manufacturing
emission electrode
secondary emission
manufactured
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH207265A publication Critical patent/CH207265A/en

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
    • H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/32—Secondary emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Cold Cathode And The Manufacture (AREA)
CH207265D 1937-04-02 1938-03-31 A method of manufacturing a discharge tube having a secondary emission electrode and a discharge tube manufactured by this method. CH207265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL207265X 1937-04-02

Publications (1)

Publication Number Publication Date
CH207265A true CH207265A (en) 1939-10-15

Family

ID=19778619

Family Applications (1)

Application Number Title Priority Date Filing Date
CH207265D CH207265A (en) 1937-04-02 1938-03-31 A method of manufacturing a discharge tube having a secondary emission electrode and a discharge tube manufactured by this method.

Country Status (6)

Country Link
US (1) US2190695A (en)
BE (1) BE427303A (en)
CH (1) CH207265A (en)
FR (1) FR836016A (en)
GB (1) GB492025A (en)
NL (1) NL50264C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637002A (en) * 1953-04-28 Television pickup tube
BE446289A (en) * 1941-07-03
US2530167A (en) * 1944-12-14 1950-11-14 Hartford Nat Bank & Trust Co Discharge tube
GB1200899A (en) * 1967-04-21 1970-08-05 Mullard Ltd Improvements in or relating to photocathodes

Also Published As

Publication number Publication date
US2190695A (en) 1940-02-20
GB492025A (en) 1938-09-13
FR836016A (en) 1939-01-09
BE427303A (en)
NL50264C (en)

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