EP0653903A3 - Fluorescent tube assembly and method. - Google Patents

Fluorescent tube assembly and method. Download PDF

Info

Publication number
EP0653903A3
EP0653903A3 EP94308013A EP94308013A EP0653903A3 EP 0653903 A3 EP0653903 A3 EP 0653903A3 EP 94308013 A EP94308013 A EP 94308013A EP 94308013 A EP94308013 A EP 94308013A EP 0653903 A3 EP0653903 A3 EP 0653903A3
Authority
EP
European Patent Office
Prior art keywords
fluorescent tube
tube assembly
assembly
fluorescent
tube
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.)
Withdrawn
Application number
EP94308013A
Other languages
German (de)
French (fr)
Other versions
EP0653903A2 (en
Inventor
Trevor Henry Williams
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.)
Meggitt UK Ltd
Original Assignee
Meggitt UK Ltd
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 Meggitt UK Ltd filed Critical Meggitt UK Ltd
Publication of EP0653903A2 publication Critical patent/EP0653903A2/en
Publication of EP0653903A3 publication Critical patent/EP0653903A3/en
Withdrawn legal-status Critical Current

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
    • H05B41/36—Controlling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • 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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel
EP94308013A 1993-11-15 1994-10-31 Fluorescent tube assembly and method. Withdrawn EP0653903A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9323511 1993-11-15
GB939323511A GB9323511D0 (en) 1993-11-15 1993-11-15 Fluorescent tube assembly

Publications (2)

Publication Number Publication Date
EP0653903A2 EP0653903A2 (en) 1995-05-17
EP0653903A3 true EP0653903A3 (en) 1996-12-04

Family

ID=10745183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94308013A Withdrawn EP0653903A3 (en) 1993-11-15 1994-10-31 Fluorescent tube assembly and method.

Country Status (2)

Country Link
EP (1) EP0653903A3 (en)
GB (1) GB9323511D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9519283D0 (en) * 1995-09-21 1995-11-22 Smiths Industries Plc Gas discharge lamps and systems
GB2305540B (en) * 1995-09-21 1999-02-17 Smiths Industries Plc Gas discharge lamps and systems
FR2745460B1 (en) * 1996-02-28 1998-08-07 Vinel Paul Louis METHOD AND DEVICES FOR SUPPLYING HIGH FREQUENCY DISCHARGE LAMPS BY ADAPTED RESONANT COUPLING
GB9803587D0 (en) * 1998-02-23 1998-04-15 Smiths Industries Plc Gas discharge lamps and systems
WO2004068532A2 (en) * 2003-01-30 2004-08-12 Koninklijke Philips Electronics N.V. Fluorescent lamp with a second ballast for dimmed lighting mode

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2269835A1 (en) * 1974-05-02 1975-11-28 Philips Nv
US4101807A (en) * 1976-03-22 1978-07-18 Xerox Corporation Method and apparatus for controlling the temperature of low pressure metal or metal halide lamps
EP0174415A1 (en) * 1984-06-29 1986-03-19 Bressan, Alessandro A parallel system for the lighting of neon lamps, fluorescent lamps, and similar
DE8706562U1 (en) * 1986-12-01 1987-12-23 Jäger, Gerd, 8561 Reichenschwand Fluorescent tube
DE8816269U1 (en) * 1988-11-02 1989-04-13 Döppe, Peter, 6000 Frankfurt Device for operating a fluorescent tube
US5030894A (en) * 1986-05-30 1991-07-09 Kabushiki Kaisha Toshiba Rare gas discharge lamp device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2269835A1 (en) * 1974-05-02 1975-11-28 Philips Nv
US4101807A (en) * 1976-03-22 1978-07-18 Xerox Corporation Method and apparatus for controlling the temperature of low pressure metal or metal halide lamps
EP0174415A1 (en) * 1984-06-29 1986-03-19 Bressan, Alessandro A parallel system for the lighting of neon lamps, fluorescent lamps, and similar
US5030894A (en) * 1986-05-30 1991-07-09 Kabushiki Kaisha Toshiba Rare gas discharge lamp device
DE8706562U1 (en) * 1986-12-01 1987-12-23 Jäger, Gerd, 8561 Reichenschwand Fluorescent tube
DE8816269U1 (en) * 1988-11-02 1989-04-13 Döppe, Peter, 6000 Frankfurt Device for operating a fluorescent tube

Also Published As

Publication number Publication date
EP0653903A2 (en) 1995-05-17
GB9323511D0 (en) 1994-01-05

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