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
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 (fr)

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 (fr) 1950-02-28

Family

ID=10325000

Family Applications (1)

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

Country Status (5)

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

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

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