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GB681355A - Improvements in or relating to gas- and/or vapour-discharge lamps - Google Patents

Improvements in or relating to gas- and/or vapour-discharge lamps

Info

Publication number
GB681355A
GB681355A GB6740/49A GB674049A GB681355A GB 681355 A GB681355 A GB 681355A GB 6740/49 A GB6740/49 A GB 6740/49A GB 674049 A GB674049 A GB 674049A GB 681355 A GB681355 A GB 681355A
Authority
GB
United Kingdom
Prior art keywords
conductive material
strip
discharge lamps
glaze
butanol
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
GB6740/49A
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
Philips Electronics 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, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB681355A publication Critical patent/GB681355A/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
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/545—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode inside the vessel

Landscapes

  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Luminescent Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

681,355. Discharge lamps. PHILIPS ELECTRICAL, Ltd. March 11, 1949 [March 16, 1948], No. 6740/49. Drawings to Specification. Class 39(i) A conductive starting strip on the inside of a discharge lamp having a luminescent coating is formed by sintering or melting a dispersion of a conductive material, or a compound reducing to a conductive material on heating, in an inorganic binder, so that the strip is neither above nor below the luminescent coating, but incorporated with it. In the example given, the conductive material is silver, and the binder a glaze of specified composition. Initially, silver oxide and the glaze are mixed with butanol, and a strip applied over the luminescent layer by roller. After driving off the butanol, the tube is baked at 470‹C as the final processing step.
GB6740/49A 1948-03-16 1949-03-11 Improvements in or relating to gas- and/or vapour-discharge lamps Expired GB681355A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL279459X 1948-03-16

Publications (1)

Publication Number Publication Date
GB681355A true GB681355A (en) 1952-10-22

Family

ID=19782239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6740/49A Expired GB681355A (en) 1948-03-16 1949-03-11 Improvements in or relating to gas- and/or vapour-discharge lamps

Country Status (6)

Country Link
BE (1) BE487890A (en)
CH (1) CH279459A (en)
DE (1) DE813059C (en)
FR (1) FR983148A (en)
GB (1) GB681355A (en)
NL (2) NL72265C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE928188C (en) * 1951-10-13 1955-05-26 Philips Nv Process for the production of a ring-shaped discharge vessel and ring-shaped discharge lamp produced according to this process
JPS5611358Y1 (en) * 1978-08-08 1981-03-13

Also Published As

Publication number Publication date
BE487890A (en)
FR983148A (en) 1951-06-19
NL72265C (en)
CH279459A (en) 1951-11-30
NL139415B (en)
DE813059C (en) 1951-09-06

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