GB321915A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB321915A
GB321915A GB2042028A GB2042028A GB321915A GB 321915 A GB321915 A GB 321915A GB 2042028 A GB2042028 A GB 2042028A GB 2042028 A GB2042028 A GB 2042028A GB 321915 A GB321915 A GB 321915A
Authority
GB
United Kingdom
Prior art keywords
vapour
electrodes
ultra
lamp
heating element
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
GB2042028A
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 GB321915A publication Critical patent/GB321915A/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

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
GB2042028A 1928-06-14 1928-07-13 Improvements in or relating to electric discharge tubes Expired GB321915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL41677A NL24987C (no) 1928-06-14 1928-06-14

Publications (1)

Publication Number Publication Date
GB321915A true GB321915A (en) 1929-11-13

Family

ID=10145660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2042028A Expired GB321915A (en) 1928-06-14 1928-07-13 Improvements in or relating to electric discharge tubes

Country Status (4)

Country Link
BE (1) BE360360A (no)
FR (1) FR674565A (no)
GB (1) GB321915A (no)
NL (1) NL24987C (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL181763C (nl) * 1977-06-02 1987-10-16 Philips Nv Glimontladingslamp.

Also Published As

Publication number Publication date
NL24987C (no) 1931-10-15
FR674565A (fr) 1930-01-30
BE360360A (no) 1929-06-29

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