FR983826A - Metal vapor discharge electric lamp - Google Patents

Metal vapor discharge electric lamp

Info

Publication number
FR983826A
FR983826A FR983826DA FR983826A FR 983826 A FR983826 A FR 983826A FR 983826D A FR983826D A FR 983826DA FR 983826 A FR983826 A FR 983826A
Authority
FR
France
Prior art keywords
metal vapor
electric lamp
vapor discharge
discharge electric
lamp
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Application granted granted Critical
Publication of FR983826A publication Critical patent/FR983826A/en
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
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0732—Main electrodes for high-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
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
FR983826D 1948-04-02 1949-03-30 Metal vapor discharge electric lamp Expired FR983826A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB936548A GB689962A (en) 1948-04-02 1948-04-02 Improvements in or relating to high pressure electric discharge lamps

Publications (1)

Publication Number Publication Date
FR983826A true FR983826A (en) 1951-06-28

Family

ID=9870547

Family Applications (1)

Application Number Title Priority Date Filing Date
FR983826D Expired FR983826A (en) 1948-04-02 1949-03-30 Metal vapor discharge electric lamp

Country Status (2)

Country Link
FR (1) FR983826A (en)
GB (1) GB689962A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896107A (en) * 1957-02-06 1959-07-21 Engelhard Ind Inc Gaseous electric discharge lamp
DE1153453B (en) * 1961-06-02 1963-08-29 Patra Patent Treuhand High pressure discharge lamp with metal halide vapor and high luminous efficiency
US3548242A (en) * 1967-05-16 1970-12-15 Sylvania Electric Prod High pressure electric discharge device and cathode
US3513280A (en) * 1967-08-11 1970-05-19 Meyer Roth Pastor Maschf Process and apparatus for welding c-shaped workpieces
DE19714009A1 (en) * 1997-04-04 1998-10-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh DC arc lamp
DE19714008A1 (en) * 1997-04-04 1998-10-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh DC arc lamp

Also Published As

Publication number Publication date
GB689962A (en) 1953-04-08

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