CH208636A - Method of manufacturing an electric discharge tube with a secondary emission electrode. - Google Patents

Method of manufacturing an electric discharge tube with a secondary emission electrode.

Info

Publication number
CH208636A
CH208636A CH208636DA CH208636A CH 208636 A CH208636 A CH 208636A CH 208636D A CH208636D A CH 208636DA CH 208636 A CH208636 A CH 208636A
Authority
CH
Switzerland
Prior art keywords
manufacturing
discharge tube
electric discharge
emission electrode
secondary emission
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 CH208636A publication Critical patent/CH208636A/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)
CH208636D 1938-02-22 1939-02-21 Method of manufacturing an electric discharge tube with a secondary emission electrode. CH208636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL208636X 1938-02-22

Publications (1)

Publication Number Publication Date
CH208636A true CH208636A (en) 1940-02-15

Family

ID=19778700

Family Applications (1)

Application Number Title Priority Date Filing Date
CH208636D CH208636A (en) 1938-02-22 1939-02-21 Method of manufacturing an electric discharge tube with a secondary emission electrode.

Country Status (4)

Country Link
BE (1) BE432879A (en)
CH (1) CH208636A (en)
FR (1) FR850654A (en)
NL (1) NL49428C (en)

Also Published As

Publication number Publication date
FR850654A (en) 1939-12-22
NL49428C (en)
BE432879A (en)

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