GB433589A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB433589A
GB433589A GB31731/34A GB3173134A GB433589A GB 433589 A GB433589 A GB 433589A GB 31731/34 A GB31731/34 A GB 31731/34A GB 3173134 A GB3173134 A GB 3173134A GB 433589 A GB433589 A GB 433589A
Authority
GB
United Kingdom
Prior art keywords
curved portion
tube
coating
jacket
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
GB31731/34A
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 GB433589A publication Critical patent/GB433589A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/006—Fastening of light sources or lamp holders of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base
    • 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

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Chemical Vapour Deposition (AREA)
GB31731/34A 1933-11-06 1934-11-05 Improvements in or relating to electric discharge tubes Expired GB433589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE433589X 1933-11-06

Publications (1)

Publication Number Publication Date
GB433589A true GB433589A (en) 1935-08-16

Family

ID=6500654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31731/34A Expired GB433589A (en) 1933-11-06 1934-11-05 Improvements in or relating to electric discharge tubes

Country Status (4)

Country Link
US (1) US2020708A (fr)
FR (2) FR433589A (fr)
GB (1) GB433589A (fr)
NL (1) NL42087C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137407A (en) * 1983-03-24 1984-10-03 Emi Plc Thorn Low pressure discharge lamps

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645665C2 (de) * 1976-10-09 1983-01-27 Erco Leuchten GmbH, 5880 Lüdenscheid Leuchte
NL7810672A (nl) * 1978-10-26 1980-04-29 Philips Nv Lagedrukkwikdampontladingslamp.
DE3535881A1 (de) * 1985-10-08 1987-04-16 Preh Elektro Feinmechanik Beleuchtungseinrichtung fuer eine frontplatte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137407A (en) * 1983-03-24 1984-10-03 Emi Plc Thorn Low pressure discharge lamps

Also Published As

Publication number Publication date
FR780700A (fr) 1935-04-30
US2020708A (en) 1935-11-12
FR433589A (fr) 1912-01-10
NL42087C (fr)

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