GB1138913A - Metal vapor discharge lamp - Google Patents

Metal vapor discharge lamp

Info

Publication number
GB1138913A
GB1138913A GB8363/67A GB836367A GB1138913A GB 1138913 A GB1138913 A GB 1138913A GB 8363/67 A GB8363/67 A GB 8363/67A GB 836367 A GB836367 A GB 836367A GB 1138913 A GB1138913 A GB 1138913A
Authority
GB
United Kingdom
Prior art keywords
lamp
thallium
dysprosium
filling
mercury
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
GB8363/67A
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 GB1138913A publication Critical patent/GB1138913A/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

Abstract

1,138,913. Metal vapour lamps. WESTING- HOUSE ELECTRIC CORP. 22 Feb., 1967 [5 Dec., 1966], No. 8363/67. Heading H1D. The filling of a mercury vapour lamp includes dysprosium, thallium, iodine, and an inert starting gas, the relative amounts preferably being such that the dysprosium and thallium are present substantially as the iodide, and the mercury is fully vaporized during operation. The amount of the filling constituents per cm. of arc length are given, and 20 to 25 torr of argon may be employed as starting gas. The high pressure lamp has a double envelope, is provided with a starting circuit which includes bi-metal switches and a resistor for initially heating one of the lamp electrodes, and has the ends of the envelope behind the electrodes coated with a heat-reflecting coating of zirconium oxide and silicon dioxide, whereby a minimum temperature in the tube of at least 750‹ C. may be maintained.
GB8363/67A 1966-12-05 1967-02-22 Metal vapor discharge lamp Expired GB1138913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59913366A 1966-12-05 1966-12-05

Publications (1)

Publication Number Publication Date
GB1138913A true GB1138913A (en) 1969-01-01

Family

ID=24398359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8363/67A Expired GB1138913A (en) 1966-12-05 1967-02-22 Metal vapor discharge lamp

Country Status (2)

Country Link
US (1) US3452238A (en)
GB (1) GB1138913A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106447A1 (en) * 1971-02-11 1972-09-07 Patra Patent Treuhand Mercury vapor high pressure discharge lamp with an addition of metal halides
GB2165392A (en) * 1984-10-09 1986-04-09 Gen Electric Arc tubes
GB2207800A (en) * 1987-07-16 1989-02-08 Tungsram Reszvenytarsasag Three-phase high-pressure gas discharge lamp

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536947A (en) * 1967-03-23 1970-10-27 Tokyo Shibaura Electric Co High pressure discharge lamps
US3530327A (en) * 1968-03-11 1970-09-22 Westinghouse Electric Corp Metal halide discharge lamps with rare-earth metal oxide used as electrode emission material
NL6909891A (en) * 1969-06-27 1970-12-29
BE754499A (en) * 1969-08-08 1971-01-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh HIGH PRESSURE DISCHARGE LAMP, MERCURY VAPOR WITH METAL HALOGENIDE ADDITIVE
US3771009A (en) * 1971-12-27 1973-11-06 Gte Laboratories Inc Electrode discharge device with electrode-activating fill
NL7203720A (en) * 1972-03-20 1973-09-24
US3786297A (en) * 1972-04-13 1974-01-15 Westinghouse Electric Corp Discharge lamp which incorporates cerium and cesium halides and a high mercury loading
JPS631937A (en) * 1986-06-23 1988-01-06 Hitachi Ltd Spectroscopic analyser
US4978884A (en) * 1988-05-19 1990-12-18 U.S. Phillips Corporation Metal halide discharge lamp having low color temperature and improved color rendition
US4918352A (en) * 1988-11-07 1990-04-17 General Electric Company Metal halide lamps with oxidized frame parts
US5479065A (en) * 1992-12-28 1995-12-26 Toshiba Lighting & Technology Corporation Metal halide discharge lamp suitable for an optical light source having a bromine to halogen ratio of 60-90%, a wall load substantially greater than 40 W/cm2, and a D.C. potential between the anode and cathode

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234421A (en) * 1961-01-23 1966-02-08 Gen Electric Metallic halide electric discharge lamps
US3334261A (en) * 1965-10-24 1967-08-01 Sylvania Electric Prod High pressure discharge device having a fill including iodine mercury and at least one rare earth metal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106447A1 (en) * 1971-02-11 1972-09-07 Patra Patent Treuhand Mercury vapor high pressure discharge lamp with an addition of metal halides
GB2165392A (en) * 1984-10-09 1986-04-09 Gen Electric Arc tubes
GB2207800A (en) * 1987-07-16 1989-02-08 Tungsram Reszvenytarsasag Three-phase high-pressure gas discharge lamp
US4912364A (en) * 1987-07-16 1990-03-27 Tungsram Reszvenytarsasag Three-phase high-pressure gas discharge lamp filled with a gas containing sodium or a metal-halide
GB2207800B (en) * 1987-07-16 1991-10-16 Tungsram Reszvenytarsasag Three-phase high-pressure gas discharge lamp

Also Published As

Publication number Publication date
DE1589400B2 (en) 1975-09-18
US3452238A (en) 1969-06-24
DE1589400A1 (en) 1970-04-09

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