WO2008105394A1 - Compact-type fluorescent lamp - Google Patents

Compact-type fluorescent lamp Download PDF

Info

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
Application number
PCT/JP2008/053257
Other languages
French (fr)
Japanese (ja)
Inventor
Masayuki Kiryu
Terutaka Muramatsu
Takashi Osawa
Ryo Suzuki
Original Assignee
Osram Gesellschaft Mit Beschraenkter Haftung
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
Priority claimed from JP2007049082A external-priority patent/JP2008210759A/en
Priority claimed from JP2007048672A external-priority patent/JP2008210744A/en
Application filed by Osram Gesellschaft Mit Beschraenkter Haftung filed Critical Osram Gesellschaft Mit Beschraenkter Haftung
Priority to EP08711981A priority Critical patent/EP2117031A1/en
Publication of WO2008105394A1 publication Critical patent/WO2008105394A1/en

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).
PCT/JP2008/053257 2007-02-28 2008-02-26 Compact-type fluorescent lamp WO2008105394A1 (en)

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
JP2007-048672 2007-02-28
JP2007049082A JP2008210759A (en) 2007-02-28 2007-02-28 Compact fluorescent lamp
JP2007048672A JP2008210744A (en) 2007-02-28 2007-02-28 Compact fluorescent lamp
JP2007-049082 2007-02-28

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (14)

* Cited by examiner, † Cited by third party
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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