FR894732A - Electric discharge tube comprising a secondary emission electrode - Google Patents

Electric discharge tube comprising a secondary emission electrode

Info

Publication number
FR894732A
FR894732A FR894732DA FR894732A FR 894732 A FR894732 A FR 894732A FR 894732D A FR894732D A FR 894732DA FR 894732 A FR894732 A FR 894732A
Authority
FR
France
Prior art keywords
discharge tube
electric discharge
emission electrode
secondary emission
electrode
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)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR894732A publication Critical patent/FR894732A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/32—Secondary-electron-emitting electrodes
FR894732D 1942-05-16 1943-05-14 Electric discharge tube comprising a secondary emission electrode Expired FR894732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2478141X 1942-05-16

Publications (1)

Publication Number Publication Date
FR894732A true FR894732A (en) 1945-01-04

Family

ID=19874345

Family Applications (1)

Application Number Title Priority Date Filing Date
FR894732D Expired FR894732A (en) 1942-05-16 1943-05-14 Electric discharge tube comprising a secondary emission electrode

Country Status (2)

Country Link
US (1) US2478141A (en)
FR (1) FR894732A (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1843728A (en) * 1928-09-27 1932-02-02 Gen Electric Photo-electric tube
US1966219A (en) * 1929-02-28 1934-07-10 Westinghouse Lamp Co Photo-electric tube
US1831314A (en) * 1930-06-14 1931-11-10 G M Lab Inc Photoelectric tube
US2029414A (en) * 1932-07-22 1936-02-04 Rca Corp Photo-electric tube and the method of making same
AT160558B (en) * 1937-02-23 1941-07-25 Philips Patentverwaltung Electric discharge tube.
US2150317A (en) * 1938-01-26 1939-03-14 Rca Corp Electron multiplier

Also Published As

Publication number Publication date
US2478141A (en) 1949-08-02

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