GB477747A - Improved device comprising a high-pressure metal-vapour discharge tube - Google Patents

Improved device comprising a high-pressure metal-vapour discharge tube

Info

Publication number
GB477747A
GB477747A GB11444/37A GB1144437A GB477747A GB 477747 A GB477747 A GB 477747A GB 11444/37 A GB11444/37 A GB 11444/37A GB 1144437 A GB1144437 A GB 1144437A GB 477747 A GB477747 A GB 477747A
Authority
GB
United Kingdom
Prior art keywords
resistance
discharge tube
pressure metal
april
vapour 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
GB11444/37A
Other languages
English (en)
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
Publication of GB477747A publication Critical patent/GB477747A/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

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
GB11444/37A 1936-04-24 1937-04-21 Improved device comprising a high-pressure metal-vapour discharge tube Expired GB477747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE477747X 1936-04-24

Publications (1)

Publication Number Publication Date
GB477747A true GB477747A (en) 1938-01-05

Family

ID=6542154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11444/37A Expired GB477747A (en) 1936-04-24 1937-04-21 Improved device comprising a high-pressure metal-vapour discharge tube

Country Status (5)

Country Link
US (1) US2177695A (en:Method)
BE (1) BE421199A (en:Method)
FR (1) FR820948A (en:Method)
GB (1) GB477747A (en:Method)
NL (1) NL46550C (en:Method)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668930A (en) * 1950-10-18 1954-02-09 Gen Electric Protective system
US2723366A (en) * 1950-11-13 1955-11-08 Gen Electric Starting and operating circuit for high pressure gaseous discharge device

Also Published As

Publication number Publication date
FR820948A (fr) 1937-11-22
NL46550C (en:Method)
US2177695A (en) 1939-10-31
BE421199A (en:Method)

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