GB1437915A - Sodium vapour lamps - Google Patents

Sodium vapour lamps

Info

Publication number
GB1437915A
GB1437915A GB577574A GB577574A GB1437915A GB 1437915 A GB1437915 A GB 1437915A GB 577574 A GB577574 A GB 577574A GB 577574 A GB577574 A GB 577574A GB 1437915 A GB1437915 A GB 1437915A
Authority
GB
United Kingdom
Prior art keywords
arc tube
switches
heater wire
envelope
wall
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
GB577574A
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.)
GTE Sylvania Inc
Original Assignee
GTE Sylvania Inc
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 GTE Sylvania Inc filed Critical GTE Sylvania Inc
Publication of GB1437915A publication Critical patent/GB1437915A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/52Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/54Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/541Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch
    • H01J61/544Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch and an auxiliary electrode outside the vessel

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
GB577574A 1973-03-08 1974-02-07 Sodium vapour lamps Expired GB1437915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00339326A US3806747A (en) 1973-03-08 1973-03-08 Sodium vapor lamp having an improved grooved alumina arc tube

Publications (1)

Publication Number Publication Date
GB1437915A true GB1437915A (en) 1976-06-03

Family

ID=23328490

Family Applications (1)

Application Number Title Priority Date Filing Date
GB577574A Expired GB1437915A (en) 1973-03-08 1974-02-07 Sodium vapour lamps

Country Status (5)

Country Link
US (1) US3806747A (enrdf_load_stackoverflow)
BE (1) BE812028A (enrdf_load_stackoverflow)
CA (1) CA1006901A (enrdf_load_stackoverflow)
FR (1) FR2220872B1 (enrdf_load_stackoverflow)
GB (1) GB1437915A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028128A1 (en) * 1979-10-25 1981-05-06 Westinghouse Electric Corporation Improvements in or relating to high-intensity-discharge sodium lamps

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258829A3 (de) * 1986-09-05 1989-11-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Hochdruckentladungslampe und Verfahren zum Betrieb
FR2649827B1 (fr) * 1989-07-13 1992-06-12 Sodern Dispositif de chauffage d'un tube d'alumine et tube a decharge muni d'un tel dispositif
US20070108912A1 (en) * 2005-11-16 2007-05-17 Leonard James A Device for containing arc tube ruptures in lamps
EP2034510B1 (en) * 2006-05-26 2012-11-21 Iwasaki Electric Co., Ltd High pressure discharge lamp with a trigger wire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765416A (en) * 1953-09-24 1956-10-02 Westinghouse Electric Corp Vapor lamps utilizing chemical compounds
NL6511266A (enrdf_load_stackoverflow) * 1965-08-28 1967-03-01
US3746914A (en) * 1971-12-30 1973-07-17 Gte Sylvania Inc Arc discharge tube with surrounding starting coil
US3757158A (en) * 1972-06-23 1973-09-04 Gte Sylvania Inc Sodium vapor lamp having a grooved alumina arc tube
US3721846A (en) * 1972-06-26 1973-03-20 Gte Sylvania Inc Sodium vapor lamp having improved starting means including a heater
US3757159A (en) * 1972-07-17 1973-09-04 Gte Sylvania Inc Sodium vapor lamp having improved starting means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028128A1 (en) * 1979-10-25 1981-05-06 Westinghouse Electric Corporation Improvements in or relating to high-intensity-discharge sodium lamps

Also Published As

Publication number Publication date
CA1006901A (en) 1977-03-15
FR2220872A1 (enrdf_load_stackoverflow) 1974-10-04
BE812028A (fr) 1974-09-09
FR2220872B1 (enrdf_load_stackoverflow) 1977-06-10
US3806747A (en) 1974-04-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee