GB2337644B - Fluorescent Lamps for Emergency Lighting Applications - Google Patents
Fluorescent Lamps for Emergency Lighting ApplicationsInfo
- Publication number
- GB2337644B GB2337644B GB9810969A GB9810969A GB2337644B GB 2337644 B GB2337644 B GB 2337644B GB 9810969 A GB9810969 A GB 9810969A GB 9810969 A GB9810969 A GB 9810969A GB 2337644 B GB2337644 B GB 2337644B
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluorescent lamps
- emergency lighting
- lighting applications
- applications
- emergency
- 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 - Fee Related
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
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9810969A GB2337644B (en) | 1998-05-22 | 1998-05-22 | Fluorescent Lamps for Emergency Lighting Applications |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9810969A GB2337644B (en) | 1998-05-22 | 1998-05-22 | Fluorescent Lamps for Emergency Lighting Applications |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9810969D0 GB9810969D0 (en) | 1998-07-22 |
GB2337644A GB2337644A (en) | 1999-11-24 |
GB2337644B true GB2337644B (en) | 2002-07-17 |
Family
ID=10832494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9810969A Expired - Fee Related GB2337644B (en) | 1998-05-22 | 1998-05-22 | Fluorescent Lamps for Emergency Lighting Applications |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2337644B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1312178B1 (en) * | 1999-04-14 | 2002-04-09 | Sema Elettronica S R L | POWER SUPPLY FOR DISCHARGE LAMPS. |
DE102005049583A1 (en) | 2005-10-17 | 2007-04-19 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electronic ballast and method of operating an electric lamp |
DE102006024700A1 (en) * | 2006-05-26 | 2007-11-29 | Tridonicatco Gmbh & Co. Kg | Electronic lamp ballast with heating circuit |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1508130A (en) * | 1975-07-22 | 1978-04-19 | Thorn Electrical Ind Ltd | Emergency lighting systems |
WO1981000184A1 (en) * | 1979-07-05 | 1981-01-22 | J Swinea | Dimmer circuit for fluorescent lamps |
GB2194399A (en) * | 1986-06-24 | 1988-03-02 | Radford Of Bristol Limited | Fluorescent light control circuits: refrigerated cabinets |
GB2269062A (en) * | 1992-07-24 | 1994-01-26 | Jsb Electrical Plc | Emergency lighting; Battery charging |
EP0758838A2 (en) * | 1995-08-12 | 1997-02-19 | CEAG Sicherheitstechnik GmbH | Emergency lamp with conventional ballast |
US5668446A (en) * | 1995-01-17 | 1997-09-16 | Negawatt Technologies Inc. | Energy management control system for fluorescent lighting |
-
1998
- 1998-05-22 GB GB9810969A patent/GB2337644B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1508130A (en) * | 1975-07-22 | 1978-04-19 | Thorn Electrical Ind Ltd | Emergency lighting systems |
WO1981000184A1 (en) * | 1979-07-05 | 1981-01-22 | J Swinea | Dimmer circuit for fluorescent lamps |
GB2194399A (en) * | 1986-06-24 | 1988-03-02 | Radford Of Bristol Limited | Fluorescent light control circuits: refrigerated cabinets |
GB2269062A (en) * | 1992-07-24 | 1994-01-26 | Jsb Electrical Plc | Emergency lighting; Battery charging |
US5668446A (en) * | 1995-01-17 | 1997-09-16 | Negawatt Technologies Inc. | Energy management control system for fluorescent lighting |
EP0758838A2 (en) * | 1995-08-12 | 1997-02-19 | CEAG Sicherheitstechnik GmbH | Emergency lamp with conventional ballast |
Also Published As
Publication number | Publication date |
---|---|
GB9810969D0 (en) | 1998-07-22 |
GB2337644A (en) | 1999-11-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20060522 |