GB1227810A - - Google Patents

Info

Publication number
GB1227810A
GB1227810A GB1227810DA GB1227810A GB 1227810 A GB1227810 A GB 1227810A GB 1227810D A GB1227810D A GB 1227810DA GB 1227810 A GB1227810 A GB 1227810A
Authority
GB
United Kingdom
Prior art keywords
envelope
wire
silica
discharge
oct
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
Other languages
English (en)
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 filed Critical
Publication of GB1227810A publication Critical patent/GB1227810A/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
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
GB1227810D 1968-10-11 1968-10-11 Expired GB1227810A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4824568 1968-10-11

Publications (1)

Publication Number Publication Date
GB1227810A true GB1227810A (enrdf_load_stackoverflow) 1971-04-07

Family

ID=10447898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1227810D Expired GB1227810A (enrdf_load_stackoverflow) 1968-10-11 1968-10-11

Country Status (1)

Country Link
GB (1) GB1227810A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462778A1 (fr) * 1979-08-01 1981-02-13 Gen Electric Lampe a decharge comportant un ecran en materiau vitreux
US4491766A (en) * 1982-06-24 1985-01-01 North American Philips Lighting Corporation High pressure electric discharge lamp employing a metal spiral with positive potential
WO1991018413A1 (en) * 1990-05-22 1991-11-28 Gte Products Corporation Arc discharge lamp having reduced sodium loss
EP0449639A3 (en) * 1990-03-29 1992-05-06 Hubbell Incorporated Biasing system for reducing ion loss in lamps
US5235256A (en) * 1990-03-29 1993-08-10 Hubbell Incorporated Biasing system for controlling chemical concentration in lamps

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462778A1 (fr) * 1979-08-01 1981-02-13 Gen Electric Lampe a decharge comportant un ecran en materiau vitreux
US4491766A (en) * 1982-06-24 1985-01-01 North American Philips Lighting Corporation High pressure electric discharge lamp employing a metal spiral with positive potential
EP0449639A3 (en) * 1990-03-29 1992-05-06 Hubbell Incorporated Biasing system for reducing ion loss in lamps
US5235256A (en) * 1990-03-29 1993-08-10 Hubbell Incorporated Biasing system for controlling chemical concentration in lamps
WO1991018413A1 (en) * 1990-05-22 1991-11-28 Gte Products Corporation Arc discharge lamp having reduced sodium loss

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee