FR957886A - - Google Patents

Info

Publication number
FR957886A
FR957886A FR957886DA FR957886A FR 957886 A FR957886 A FR 957886A FR 957886D A FR957886D A FR 957886DA FR 957886 A FR957886 A FR 957886A
Authority
FR
France
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)
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.)
Publication date
Application granted granted Critical
Publication of FR957886A publication Critical patent/FR957886A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/22—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps having an auxiliary starting electrode
FR957886D 1945-11-23 Expired FR957886A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31564/45A GB613847A (en) 1945-11-23 1945-11-23 Improvements in or relating to electric discharge lamps and circuits therefor

Publications (1)

Publication Number Publication Date
FR957886A true FR957886A (zh) 1950-02-28

Family

ID=10325000

Family Applications (1)

Application Number Title Priority Date Filing Date
FR957886D Expired FR957886A (zh) 1945-11-23

Country Status (5)

Country Link
US (1) US2526559A (zh)
BE (1) BE479820A (zh)
CH (1) CH273532A (zh)
FR (1) FR957886A (zh)
GB (1) GB613847A (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829297A (en) * 1954-04-15 1958-04-01 Machlett Lab Inc Filament structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1565565A (en) * 1922-02-02 1925-12-15 Westinghouse Lamp Co Electric gas lamp
US1971890A (en) * 1928-06-14 1934-08-28 Gen Electric Electric discharge tube
US1897642A (en) * 1931-04-16 1933-02-14 Gen Electric Gaseous electric discharge device
GB412879A (en) * 1933-03-10 1934-07-05 Gen Electric Co Ltd Improvements in electric discharge tubes
US2175345A (en) * 1935-07-12 1939-10-10 Gen Electric Electric gaseous discharge device
GB504120A (en) * 1937-10-18 1939-04-18 Gen Electric Co Ltd Improvements in electrodes for high-pressure mercury-vapour discharge devices

Also Published As

Publication number Publication date
BE479820A (zh)
US2526559A (en) 1950-10-17
CH273532A (fr) 1951-02-15
GB613847A (en) 1948-12-03

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