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GB684680A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB684680A
GB684680A GB20107/49A GB2010749A GB684680A GB 684680 A GB684680 A GB 684680A GB 20107/49 A GB20107/49 A GB 20107/49A GB 2010749 A GB2010749 A GB 2010749A GB 684680 A GB684680 A GB 684680A
Authority
GB
United Kingdom
Prior art keywords
strip
relating
aug
electric discharge
electrode
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
GB20107/49A
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
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 GB684680A publication Critical patent/GB684680A/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

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
GB20107/49A 1948-08-05 1949-08-02 Improvements in or relating to electric discharge tubes Expired GB684680A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL283643X 1948-08-05
CH279459T 1949-08-03

Publications (1)

Publication Number Publication Date
GB684680A true GB684680A (en) 1952-12-24

Family

ID=25731921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20107/49A Expired GB684680A (en) 1948-08-05 1949-08-02 Improvements in or relating to electric discharge tubes

Country Status (6)

Country Link
US (1) US2663823A (de)
BE (1) BE490509A (de)
CH (1) CH283643A (de)
DE (1) DE826773C (de)
FR (1) FR59453E (de)
GB (1) GB684680A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE928188C (de) * 1951-10-13 1955-05-26 Philips Nv Verfahren zur Herstellung eines ringfoermigen Entladungsgefaesses und nach diesem Verfahren hergestellte ringfoermige Entladungslampe
NL166690B (nl) * 1952-01-15 M & T Chemicals Inc Werkwijze ter bereiding van hexa-organoditinverbin- dingen.
DE1008406B (de) * 1953-03-20 1957-05-16 Patra Patent Treuhand Roehrenfoermige elektrische Entladungslampe
US2791727A (en) * 1953-12-30 1957-05-07 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric discharge lamp
DE1028685B (de) * 1956-08-01 1958-04-24 Patra Patent Treuhand Elektrische Entladungslampe mit Innenzuendstrich, insbesondere Leuchtstofflampe
US2938137A (en) * 1956-10-22 1960-05-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric discharge lamp with connected starting strip
US3382406A (en) * 1965-10-11 1968-05-07 Edward L. Schiavone Fluorescent light starting and operating circuit with heater and light sensitive cut-out therefor
US4316122A (en) * 1979-10-03 1982-02-16 Matsushita Electronics Corporation High pressure sodium vapor discharge lamp
US5646483A (en) * 1995-05-30 1997-07-08 Matsushita Electronics Corporation Discharge lamp having cesium compound

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB404448A (en) * 1931-12-24 1934-01-18 Gen Electric Co Ltd Improvements in luminous electric discharge tubes
US2020737A (en) * 1932-12-24 1935-11-12 Gen Electric Gaseous electric discharge arc lamp
US2114535A (en) * 1933-10-24 1938-04-19 Kirsten Lighting Corp Gas arc lamp
DE636027C (de) * 1935-06-06 1936-09-30 Patra Patent Treuhand Elektrische Leuchtroehre mit an den Enden angebrachten Elektroden, insbesondere Gluehelektroden, und im Roehreninnern untergebrachten Drahtwendel
US2156068A (en) * 1937-07-29 1939-04-25 Gen Electric Gaseous electric discharge lamp
US2462336A (en) * 1945-05-18 1949-02-22 Gen Electric Electric discharge device and method of operation
US2491854A (en) * 1946-04-06 1949-12-20 Gen Electric Starting strip for electric discharge devices

Also Published As

Publication number Publication date
US2663823A (en) 1953-12-22
BE490509A (de)
FR59453E (fr) 1954-05-25
CH283643A (de) 1952-06-15
DE826773C (de) 1952-01-03

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