EP0653903A3 - Méthode et appareil pour tube fluorescent. - Google Patents
Méthode et appareil pour tube fluorescent. Download PDFInfo
- 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- Withdrawn
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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939323511A GB9323511D0 (en) | 1993-11-15 | 1993-11-15 | Fluorescent tube assembly |
GB9323511 | 1993-11-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0653903A2 EP0653903A2 (fr) | 1995-05-17 |
EP0653903A3 true EP0653903A3 (fr) | 1996-12-04 |
Family
ID=10745183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94308013A Withdrawn EP0653903A3 (fr) | 1993-11-15 | 1994-10-31 | Méthode et appareil pour tube fluorescent. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0653903A3 (fr) |
GB (1) | GB9323511D0 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2305540B (en) * | 1995-09-21 | 1999-02-17 | Smiths Industries Plc | Gas discharge lamps and systems |
GB9519283D0 (en) * | 1995-09-21 | 1995-11-22 | Smiths Industries Plc | Gas discharge lamps and systems |
FR2745460B1 (fr) * | 1996-02-28 | 1998-08-07 | Vinel Paul Louis | Procede et dispositifs d'alimentation de lampes a decharge en haute frequence par couplage resonant adapte |
GB9803587D0 (en) | 1998-02-23 | 1998-04-15 | Smiths Industries Plc | Gas discharge lamps and systems |
WO2004068532A2 (fr) * | 2003-01-30 | 2004-08-12 | Koninklijke Philips Electronics N.V. | Lampe fluorescente |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2269835A1 (fr) * | 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 (fr) * | 1984-06-29 | 1986-03-19 | Bressan, Alessandro | Système d'alimentation en parallèle de lampes au néon, fluorescentes et similaires |
DE8706562U1 (de) * | 1986-12-01 | 1987-12-23 | Jäger, Gerd, 8561 Reichenschwand | Leuchtstoffröhre |
DE8816269U1 (de) * | 1988-11-02 | 1989-04-13 | Döppe, Peter, 6000 Frankfurt | Vorrichtung zum Betrieb einer Leuchtstoffröhre |
US5030894A (en) * | 1986-05-30 | 1991-07-09 | Kabushiki Kaisha Toshiba | Rare gas discharge lamp device |
-
1993
- 1993-11-15 GB GB939323511A patent/GB9323511D0/en active Pending
-
1994
- 1994-10-31 EP EP94308013A patent/EP0653903A3/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2269835A1 (fr) * | 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 (fr) * | 1984-06-29 | 1986-03-19 | Bressan, Alessandro | Système d'alimentation en parallèle de lampes au néon, fluorescentes et similaires |
US5030894A (en) * | 1986-05-30 | 1991-07-09 | Kabushiki Kaisha Toshiba | Rare gas discharge lamp device |
DE8706562U1 (de) * | 1986-12-01 | 1987-12-23 | Jäger, Gerd, 8561 Reichenschwand | Leuchtstoffröhre |
DE8816269U1 (de) * | 1988-11-02 | 1989-04-13 | Döppe, Peter, 6000 Frankfurt | Vorrichtung zum Betrieb einer Leuchtstoffröhre |
Also Published As
Publication number | Publication date |
---|---|
GB9323511D0 (en) | 1994-01-05 |
EP0653903A2 (fr) | 1995-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19970506 |