GB1034699A - Discharge lamp - Google Patents

Discharge lamp

Info

Publication number
GB1034699A
GB1034699A GB3859864A GB3859864A GB1034699A GB 1034699 A GB1034699 A GB 1034699A GB 3859864 A GB3859864 A GB 3859864A GB 3859864 A GB3859864 A GB 3859864A GB 1034699 A GB1034699 A GB 1034699A
Authority
GB
United Kingdom
Prior art keywords
iodide
thallium
lamp
filling
metal
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
GB3859864A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1034699A publication Critical patent/GB1034699A/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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/231—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for high-pressure lamps

Landscapes

  • Discharge Lamp (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

1,034,699. Metal-vapour lamps. WESTING- HOUSE ELECTRIC CORPORATION. Sept. 22, 1964 [Oct. 21, 1963], No. 38598/64. Heading H1D. The filling of a mercury vapour discharge lamp includes at least 1 mg.cm.<SP>-3</SP> of sodium iodide, 0À1 to 0À9 mg.cm.<SP>-3</SP> of thallium iodide, and at least 0À35 mg.cm.<SP>-3</SP> of thallium metal, whereby the additional thallium iodide formed during operation of the lamp by the dissociation of sodium iodide produces negligible change in the colour output. The discharge vessel 12 is mounted in the sealed outer envelope 24, and additionally contains argon at 20 torr as starting gas and, optionally, the iodide of indium, zinc or lithium, to modify the colour. The auxiliary starting electrode 30 is in series with a resistor 32. The distance between the main electrodes 14 may be 57 mm., and the lamp is operated at a minimum temperature of 580‹ C., the mercury filling being wholly vaporized.
GB3859864A 1963-10-21 1964-09-22 Discharge lamp Expired GB1034699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31750863A 1963-10-21 1963-10-21

Publications (1)

Publication Number Publication Date
GB1034699A true GB1034699A (en) 1966-06-29

Family

ID=23233977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3859864A Expired GB1034699A (en) 1963-10-21 1964-09-22 Discharge lamp

Country Status (5)

Country Link
BE (1) BE654571A (en)
DE (1) DE1489606A1 (en)
ES (1) ES304293A1 (en)
GB (1) GB1034699A (en)
NL (1) NL6411668A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133925A (en) * 1982-12-29 1984-08-01 Gen Electric Control of radial distributions in high intensity discharge lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133925A (en) * 1982-12-29 1984-08-01 Gen Electric Control of radial distributions in high intensity discharge lamps

Also Published As

Publication number Publication date
ES304293A1 (en) 1964-11-01
NL6411668A (en) 1965-04-22
BE654571A (en) 1965-02-15
DE1489606A1 (en) 1969-04-30

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