FR834147A - Incandescent electric lamp having a refractory incandescent body - Google Patents

Incandescent electric lamp having a refractory incandescent body

Info

Publication number
FR834147A
FR834147A FR834147DA FR834147A FR 834147 A FR834147 A FR 834147A FR 834147D A FR834147D A FR 834147DA FR 834147 A FR834147 A FR 834147A
Authority
FR
France
Prior art keywords
incandescent
refractory
electric lamp
incandescent electric
incandescent body
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 FR834147A publication Critical patent/FR834147A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K11/00—Lamps having an incandescent body which is not conductively heated, e.g. heated inductively, heated by electronic discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0048—Tubes with a main cathode
    • H01J2893/0056—Parts inside tubes brought to incandescence by the discharge
FR834147D 1937-02-25 1938-02-23 Incandescent electric lamp having a refractory incandescent body Expired FR834147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL834147X 1937-02-25

Publications (1)

Publication Number Publication Date
FR834147A true FR834147A (en) 1938-11-14

Family

ID=19843078

Family Applications (1)

Application Number Title Priority Date Filing Date
FR834147D Expired FR834147A (en) 1937-02-25 1938-02-23 Incandescent electric lamp having a refractory incandescent body

Country Status (1)

Country Link
FR (1) FR834147A (en)

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