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SE303156B - - Google Patents

Info

Publication number
SE303156B
SE303156B SE10359/64A SE1035964A SE303156B SE 303156 B SE303156 B SE 303156B SE 10359/64 A SE10359/64 A SE 10359/64A SE 1035964 A SE1035964 A SE 1035964A SE 303156 B SE303156 B SE 303156B
Authority
SE
Sweden
Prior art keywords
starting
electrode
main
electrodes
main electrode
Prior art date
Application number
SE10359/64A
Inventor
A Green
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of SE303156B publication Critical patent/SE303156B/xx

Links

Classifications

    • 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
    • H05B41/18—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 a starting switch
    • H05B41/19—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 a starting switch for lamps having an auxiliary starting electrode
    • 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
    • H01J61/541—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch
    • H01J61/542—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch and an auxiliary electrode inside the vessel

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

1,070,374. Metal-vapour lamps. GENERAL ELECTRIC CO. Aug. 13, 1964 [Sept. 4, 1963], No. 33058/64. Heading H1D. In order to prevent failure of a mercury discharge lamp, resulting from electrolytic decomposition of a metal halide, such as sodium iodide, which is contained within the lamp, the starting electrode is electrically connected to the adjacent main electrode during normal operation. In one form a discharge lamp1 comprises a vitreous outer jacket 2 enclosing a quartz arc tube 12 having main thermionic electrodes 13, 14 and a starting electrode 15, an ionizable filling in the tube 12 comprising mercury, a metal halide and an inert starting gas, a starting resistor 33 between the starting electrode and main electrode 14, and a thermal switch, comprising a bi-metal strip 35, attached to the lead 16 of the second main electrode 13. When starting, the full voltage is developed between the starting electrode 15 and main electrode 13 but when the lamp becomes heated the free end of the strip 35 moves across so that a molybdenum contact 36 engages the lead 18 of the starting electrode, so that the two electrodes 13, 15 are at the same potential. With the above arrangement there is, during running, a continual slight loss through the starting resistor, as it is then connected across the main electrodes. This disadvantage is avoided, according to a second embodiment, wherein the bi-metal strip is arranged to form a change-over switch by means of which, when starting, the starting electrode is connected through the starting resistor to the upper electrode but, during normal running, it is disconnected therefrom and connected to the lower main electrode.
SE10359/64A 1963-09-04 1964-08-28 SE303156B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US306476A US3226597A (en) 1963-09-04 1963-09-04 High pressure metal vapor discharge lamp

Publications (1)

Publication Number Publication Date
SE303156B true SE303156B (en) 1968-08-19

Family

ID=23185474

Family Applications (1)

Application Number Title Priority Date Filing Date
SE10359/64A SE303156B (en) 1963-09-04 1964-08-28

Country Status (5)

Country Link
US (1) US3226597A (en)
DE (1) DE1217496C2 (en)
GB (1) GB1070374A (en)
NL (1) NL146327B (en)
SE (1) SE303156B (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307069A (en) * 1964-06-30 1967-02-28 Westinghouse Electric Corp Electric discharge lamp
US3445721A (en) * 1966-07-01 1969-05-20 Sylvania Electric Prod Electric discharge lamp with the starting resistor impedance twice that of the lamp impedance
US3619710A (en) * 1969-10-29 1971-11-09 Sylvania Electric Prod High-pressure electric discharge lamp having electrolysis-preventing means
GB1343780A (en) * 1970-06-26 1974-01-16 Thorn Electrical Ind Ltd Discharge lamps
US3965387A (en) * 1974-06-24 1976-06-22 General Electric Company Electric lamp and thermal switch therefore
US3909660A (en) * 1974-08-08 1975-09-30 Gen Electric Metal halide discharge lamp starting electrode
DE2517818A1 (en) * 1975-04-22 1976-11-04 Patra Patent Treuhand IGNITION AND OPERATING DEVICE FOR A HIGH PRESSURE DISCHARGE LAMP
US4001634A (en) * 1975-09-02 1977-01-04 General Electric Company Discharge lamp having thermal switch starter
US4024423A (en) * 1975-10-06 1977-05-17 North American Philips Corporation Electric discharge tube having variable electrode area
JPS5267174A (en) * 1975-12-02 1977-06-03 Iwasaki Electric Co Ltd High voltage discharge lamp containing starter circuit
US4437039A (en) * 1978-10-03 1984-03-13 North American Philips Electric Corp. Starting arrangement for high-intensity-discharge sodium lamp
US4191910A (en) * 1978-10-03 1980-03-04 Westinghouse Electric Corp. Starting arrangement for high pressure discharge sodium lamp
NL7902634A (en) * 1979-04-04 1980-10-07 Philips Nv Discharge lamp.
US4258289A (en) * 1979-05-09 1981-03-24 Westinghouse Electric Corp. Metal halide lamp for operation with a mercury ballast
US4322658A (en) * 1980-03-19 1982-03-30 General Electric Company High intensity discharge lamp containing electronic starting aid
JPS6034223B2 (en) * 1980-06-18 1985-08-07 株式会社東芝 metal vapor discharge lamp
DE3324081A1 (en) * 1983-07-04 1985-01-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Mercury-vapour high-pressure discharge lamp
US4721888A (en) * 1984-12-27 1988-01-26 Gte Laboratories Incorporated Arc discharge lamp with ultraviolet enhanced starting circuit
DE3619068C2 (en) * 1986-06-06 1996-08-22 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Compact metal halide discharge lamp
US5003214A (en) * 1986-12-19 1991-03-26 Gte Products Corporation Metal halide lamp having reflective coating on the arc tube
US4812714A (en) * 1987-10-22 1989-03-14 Gte Products Corporation Arc discharge lamp with electrodeless ultraviolet radiation starting source
US4818915A (en) * 1987-10-22 1989-04-04 Gte Products Corporation Arc discharge lamp with ultraviolet radiation starting source
US5015916A (en) * 1989-12-18 1991-05-14 General Electric Company Electric discharge lamp and thermal switch starter means therefor
US5173639A (en) * 1990-12-27 1992-12-22 Gte Products Corporation Thermal switch assembly for electric lamps
US5323091A (en) * 1992-11-04 1994-06-21 Gte Products Corporation Starting source for arc discharge lamps
US5248273A (en) * 1992-11-25 1993-09-28 Gte Products Corporation Method of fabricating ultraviolet radiation starting source
US5323087A (en) * 1992-11-20 1994-06-21 Gte Products Corporation Ultraviolet radiation starting source and lamp containing same
DE19925232A1 (en) * 1999-06-01 2000-12-07 Siemens Ag Lamp arrangement emits reduced noise field so that it can be operated at high frequencies, esp. above 10 MHz

Also Published As

Publication number Publication date
DE1217496B (en) 1966-05-26
NL146327B (en) 1975-06-16
US3226597A (en) 1965-12-28
GB1070374A (en) 1967-06-01
DE1217496C2 (en) 1966-12-15
NL6410100A (en) 1965-03-05

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