WO2008105394A1 - Compact-type fluorescent lamp - Google Patents
Compact-type fluorescent lamp Download PDFInfo
- Publication number
- WO2008105394A1 WO2008105394A1 PCT/JP2008/053257 JP2008053257W WO2008105394A1 WO 2008105394 A1 WO2008105394 A1 WO 2008105394A1 JP 2008053257 W JP2008053257 W JP 2008053257W WO 2008105394 A1 WO2008105394 A1 WO 2008105394A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluorescent lamp
- crest
- compact
- type fluorescent
- leading end
- Prior art date
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
- H01J61/30—Vessels; Containers
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
- H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/33—Special shape of cross-section, e.g. for producing cool spot
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Intended is to provide a compact-type fluorescent lamp having eight or more tubes using liquid mercury. The fluorescent lamp is enabled to lower the temperature of the vicinity of its base by forming such a portion at the leading end portion of a light-emitting tube as becomes the lowest of about 50 °C at the lighting time. The compact-type fluorescent lamp has eight or more U-shaped light emitting tubes but does not regulate the mercury vapor pressure. The fluorescent lamp is characterized in that the crest of at least one of the U-shaped tubes has such a section as is wider in the vicinity of the crotch of the U-shaped tube and as converges from the wider portion toward the leading end portion of the crest, and in that the axially inner size (L1) of the crest and the axially inner size (L2) between the wider portion near the crotch of the U-shaped tube and the leading end portion of the crest are: 11 ≤ L1 ≤ 17 (at the unit of [mm]) (1); and L1-7 ≤ L2 ≤ L1-2 (at the unit of [mm]) (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08711981A EP2117031A1 (en) | 2007-02-28 | 2008-02-26 | Compact-type fluorescent lamp |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007049082A JP2008210759A (en) | 2007-02-28 | 2007-02-28 | Compact fluorescent lamp |
JP2007-049082 | 2007-02-28 | ||
JP2007-048672 | 2007-02-28 | ||
JP2007048672A JP2008210744A (en) | 2007-02-28 | 2007-02-28 | Compact fluorescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008105394A1 true WO2008105394A1 (en) | 2008-09-04 |
Family
ID=39721225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/053257 WO2008105394A1 (en) | 2007-02-28 | 2008-02-26 | Compact-type fluorescent lamp |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2117031A1 (en) |
WO (1) | WO2008105394A1 (en) |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6212048A (en) * | 1985-07-10 | 1987-01-21 | Hitachi Ltd | Fluorescent lamp |
JPS62115643A (en) * | 1985-05-23 | 1987-05-27 | ルマラムパン アクチ−ボラグ | Mercury vapor discharge lamp |
JPH10302719A (en) * | 1996-12-26 | 1998-11-13 | Toshiba Lighting & Technol Corp | Fluorescent lamp, fluorescent lamp device and lighting system |
JPH11273569A (en) * | 1998-03-20 | 1999-10-08 | Matsushita Electron Corp | Manufacture of fluorescent lamp |
JP2000200582A (en) * | 1997-06-11 | 2000-07-18 | Toshiba Lighting & Technology Corp | Bulb type fluorescent lamp and luminaire |
JP2001167734A (en) * | 1999-09-30 | 2001-06-22 | Toshiba Lighting & Technology Corp | Fluorescent lamp and illuminating device |
JP2002015701A (en) * | 2000-06-30 | 2002-01-18 | Toshiba Lighting & Technology Corp | Fluorescent lamp and illumination device |
JP2003217506A (en) | 2002-01-28 | 2003-07-31 | Matsushita Electric Ind Co Ltd | Fluorescent lamp and lighting device |
JP2004335130A (en) * | 2003-04-30 | 2004-11-25 | Toshiba Lighting & Technology Corp | Fluorescent lamp, ballast-free fluorescent lamp, and lighting device |
JP2005209590A (en) | 2004-01-26 | 2005-08-04 | Osram-Melco Ltd | Low pressure mercury vapor discharge single base fluorescent lamp |
JP2005251621A (en) * | 2004-03-05 | 2005-09-15 | Matsushita Electric Ind Co Ltd | Fluorescent lamp and lighting equipment |
JP2006527472A (en) * | 2003-06-10 | 2006-11-30 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Low pressure mercury vapor discharge lamp with dummy seal |
JP2007227104A (en) * | 2006-02-22 | 2007-09-06 | Toshiba Lighting & Technology Corp | Fluorescent lamp |
JP2008084686A (en) * | 2006-09-27 | 2008-04-10 | Toshiba Lighting & Technology Corp | Fluorescent lamp, and illumination fixture |
-
2008
- 2008-02-26 WO PCT/JP2008/053257 patent/WO2008105394A1/en active Application Filing
- 2008-02-26 EP EP08711981A patent/EP2117031A1/en not_active Withdrawn
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62115643A (en) * | 1985-05-23 | 1987-05-27 | ルマラムパン アクチ−ボラグ | Mercury vapor discharge lamp |
JPS6212048A (en) * | 1985-07-10 | 1987-01-21 | Hitachi Ltd | Fluorescent lamp |
JPH10302719A (en) * | 1996-12-26 | 1998-11-13 | Toshiba Lighting & Technol Corp | Fluorescent lamp, fluorescent lamp device and lighting system |
JP2000200582A (en) * | 1997-06-11 | 2000-07-18 | Toshiba Lighting & Technology Corp | Bulb type fluorescent lamp and luminaire |
JPH11273569A (en) * | 1998-03-20 | 1999-10-08 | Matsushita Electron Corp | Manufacture of fluorescent lamp |
JP2001167734A (en) * | 1999-09-30 | 2001-06-22 | Toshiba Lighting & Technology Corp | Fluorescent lamp and illuminating device |
JP2002015701A (en) * | 2000-06-30 | 2002-01-18 | Toshiba Lighting & Technology Corp | Fluorescent lamp and illumination device |
JP2003217506A (en) | 2002-01-28 | 2003-07-31 | Matsushita Electric Ind Co Ltd | Fluorescent lamp and lighting device |
JP2004335130A (en) * | 2003-04-30 | 2004-11-25 | Toshiba Lighting & Technology Corp | Fluorescent lamp, ballast-free fluorescent lamp, and lighting device |
JP2006527472A (en) * | 2003-06-10 | 2006-11-30 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Low pressure mercury vapor discharge lamp with dummy seal |
JP2005209590A (en) | 2004-01-26 | 2005-08-04 | Osram-Melco Ltd | Low pressure mercury vapor discharge single base fluorescent lamp |
JP2005251621A (en) * | 2004-03-05 | 2005-09-15 | Matsushita Electric Ind Co Ltd | Fluorescent lamp and lighting equipment |
JP2007227104A (en) * | 2006-02-22 | 2007-09-06 | Toshiba Lighting & Technology Corp | Fluorescent lamp |
JP2008084686A (en) * | 2006-09-27 | 2008-04-10 | Toshiba Lighting & Technology Corp | Fluorescent lamp, and illumination fixture |
Also Published As
Publication number | Publication date |
---|---|
EP2117031A1 (en) | 2009-11-11 |
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