GB429568A - Improvements in or relating to electric discharge tubes filled with metal vapour - Google Patents

Improvements in or relating to electric discharge tubes filled with metal vapour

Info

Publication number
GB429568A
GB429568A GB31730/34A GB3173034A GB429568A GB 429568 A GB429568 A GB 429568A GB 31730/34 A GB31730/34 A GB 31730/34A GB 3173034 A GB3173034 A GB 3173034A GB 429568 A GB429568 A GB 429568A
Authority
GB
United Kingdom
Prior art keywords
coating
tube
metal
nov
vapour
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
GB31730/34A
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 GB429568A publication Critical patent/GB429568A/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
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H01J61/523—Heating or cooling particular parts of the lamp

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Physical Vapour Deposition (AREA)
GB31730/34A 1933-11-06 1934-11-05 Improvements in or relating to electric discharge tubes filled with metal vapour Expired GB429568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN35923D DE613573C (de) 1933-11-06 1933-11-06 Elektrische, vornehmlich zur Lichtausstrahlung dienende Entladungsroehre, die Dampf schwer fluechtigen Metalls enthaelt

Publications (1)

Publication Number Publication Date
GB429568A true GB429568A (en) 1935-05-31

Family

ID=40612883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31730/34A Expired GB429568A (en) 1933-11-06 1934-11-05 Improvements in or relating to electric discharge tubes filled with metal vapour

Country Status (5)

Country Link
US (1) US2076754A (de)
DE (1) DE613573C (de)
FR (1) FR780849A (de)
GB (1) GB429568A (de)
NL (1) NL41668C (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479548A (en) * 1966-07-06 1969-11-18 Airequipt Inc Enveloped quartz iodine lamp

Also Published As

Publication number Publication date
DE613573C (de) 1935-05-21
FR780849A (fr) 1935-05-04
NL41668C (de) 1937-10-15
US2076754A (en) 1937-04-13

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