FR991119A - Improvements to discharge lamps in low pressure metal vapor - Google Patents

Improvements to discharge lamps in low pressure metal vapor

Info

Publication number
FR991119A
FR991119A FR991119DA FR991119A FR 991119 A FR991119 A FR 991119A FR 991119D A FR991119D A FR 991119DA FR 991119 A FR991119 A FR 991119A
Authority
FR
France
Prior art keywords
low pressure
metal vapor
discharge lamps
pressure metal
lamps
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR991119A publication Critical patent/FR991119A/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
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
FR991119D 1948-07-23 1949-07-22 Improvements to discharge lamps in low pressure metal vapor Expired FR991119A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB991119X 1948-07-23

Publications (1)

Publication Number Publication Date
FR991119A true FR991119A (en) 1951-10-01

Family

ID=10853442

Family Applications (1)

Application Number Title Priority Date Filing Date
FR991119D Expired FR991119A (en) 1948-07-23 1949-07-22 Improvements to discharge lamps in low pressure metal vapor

Country Status (1)

Country Link
FR (1) FR991119A (en)

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