FR49538E - Lamp comprising an electric discharge tube which contains metallic vapor under high pressure - Google Patents

Lamp comprising an electric discharge tube which contains metallic vapor under high pressure

Info

Publication number
FR49538E
FR49538E FR49538DA FR49538E FR 49538 E FR49538 E FR 49538E FR 49538D A FR49538D A FR 49538DA FR 49538 E FR49538 E FR 49538E
Authority
FR
France
Prior art keywords
lamp
high pressure
under high
discharge tube
electric discharge
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 FR49538E publication Critical patent/FR49538E/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
    • H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
FR49538D 1937-06-04 1938-06-04 Lamp comprising an electric discharge tube which contains metallic vapor under high pressure Expired FR49538E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE493831X 1937-06-04

Publications (1)

Publication Number Publication Date
FR49538E true FR49538E (en) 1939-05-01

Family

ID=6544628

Family Applications (1)

Application Number Title Priority Date Filing Date
FR49538D Expired FR49538E (en) 1937-06-04 1938-06-04 Lamp comprising an electric discharge tube which contains metallic vapor under high pressure

Country Status (3)

Country Link
BE (1) BE428407A (en)
FR (1) FR49538E (en)
GB (1) GB493831A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL158929B (en) * 1951-01-31 Barringer Research Ltd METHOD AND DEVICE FOR SPECTRAL ANALYSIS.

Also Published As

Publication number Publication date
GB493831A (en) 1938-10-14
BE428407A (en)

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