WO2002021569A3 - Very high output low pressure discharge lamp - Google Patents

Very high output low pressure discharge lamp Download PDF

Info

Publication number
WO2002021569A3
WO2002021569A3 PCT/EP2001/009978 EP0109978W WO0221569A3 WO 2002021569 A3 WO2002021569 A3 WO 2002021569A3 EP 0109978 W EP0109978 W EP 0109978W WO 0221569 A3 WO0221569 A3 WO 0221569A3
Authority
WO
WIPO (PCT)
Prior art keywords
envelope
ultraviolet radiation
aluminum oxide
electrodes
layer
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.)
Ceased
Application number
PCT/EP2001/009978
Other languages
French (fr)
Other versions
WO2002021569A2 (en
Inventor
Kelly S Vose
Emmanuel W J L Oomen
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to EP01980302A priority Critical patent/EP1323181B1/en
Priority to DE60135473T priority patent/DE60135473D1/en
Priority to JP2002525894A priority patent/JP2004508683A/en
Publication of WO2002021569A2 publication Critical patent/WO2002021569A2/en
Publication of WO2002021569A3 publication Critical patent/WO2002021569A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • 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
    • H01J61/302—Vessels; Containers characterised by the material of the vessel

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

An electric lamp (100) has an envelope (105) with an inner surface and two electrodes (115) located at ends of the electric lamp. The electrodes generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer (200) to reflect ultraviolet radiation back into the envelope. A tri-phosphate layer (210) is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The tri-phosphate layer has yttrium oxide, cerium magnesium aluminate, and barium-magnesium aluminate. One of the electrodes is mounted on a short mount (140) along with a mercury capsule (180), while the other electrode is mounted on a long mount (135). The long mount has a horizontal portion (155) and a flared portion (160) which is near the lamp end. The horizontal portion is coated with a layer (220) of aluminum oxide to reduce mercury consumption.
PCT/EP2001/009978 2000-09-06 2001-08-27 Very high output low pressure discharge lamp Ceased WO2002021569A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP01980302A EP1323181B1 (en) 2000-09-06 2001-08-27 Very high output low pressure discharge lamp
DE60135473T DE60135473D1 (en) 2000-09-06 2001-08-27 LOW PRESSURE DISCHARGE LAMP WITH VERY HIGH OUTPUT POWER
JP2002525894A JP2004508683A (en) 2000-09-06 2001-08-27 Ultra high output low pressure discharge lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/656,128 US6534910B1 (en) 2000-09-06 2000-09-06 VHO lamp with reduced mercury and improved brightness
US09/656,128 2000-09-06

Publications (2)

Publication Number Publication Date
WO2002021569A2 WO2002021569A2 (en) 2002-03-14
WO2002021569A3 true WO2002021569A3 (en) 2002-07-18

Family

ID=24631752

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/009978 Ceased WO2002021569A2 (en) 2000-09-06 2001-08-27 Very high output low pressure discharge lamp

Country Status (6)

Country Link
US (1) US6534910B1 (en)
EP (1) EP1323181B1 (en)
JP (1) JP2004508683A (en)
CN (1) CN100449679C (en)
DE (1) DE60135473D1 (en)
WO (1) WO2002021569A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6650042B2 (en) * 2001-04-26 2003-11-18 General Electric Company Low-wattage fluorescent lamp
US7477005B2 (en) * 2005-10-26 2009-01-13 General Electric Company Fluorescent lamp providing more robust light output

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54124581A (en) * 1978-03-20 1979-09-27 Matsushita Electronics Corp Fluorescent lamp
JPS55166856A (en) * 1979-06-13 1980-12-26 Matsushita Electronics Corp Fluorescent lamp
JPS5721065A (en) * 1980-07-15 1982-02-03 Matsushita Electronics Corp Rapid start fluorescent lamp
JPS584258A (en) * 1981-06-30 1983-01-11 Matsushita Electronics Corp Fluorescent lamp
US4447756A (en) * 1980-04-08 1984-05-08 Tokyo Shibaura Denki Kabushiki Kaisha Fluorescent lamp with layer of plural phosphors having different particle sizes
JPH01102845A (en) * 1987-10-14 1989-04-20 Matsushita Electron Corp Rapid starting fluorescent lamp
JPH04304291A (en) * 1991-03-29 1992-10-27 Toshiba Lighting & Technol Corp Fluorescent lamp

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE833084C (en) 1951-06-05 1952-03-03 Lumalampan Ab Electric discharge tubes with fluorescent coating
US4639637A (en) 1981-01-27 1987-01-27 Gte Products Corporation Arc discharge lamp having improved lumen maintenance
US5051653A (en) * 1987-06-12 1991-09-24 Gte Products Corporation Silicon dioxide selectively reflecting layer for mercury vapor discharge lamps
US5045752A (en) * 1989-10-24 1991-09-03 General Electric Company Minimizing mercury condensation in two layer fluorescent lamps
DE69431331T2 (en) 1993-07-30 2003-06-18 Kabushiki Kaisha Toshiba, Kawasaki Luminescent material for mercury discharge lamp
BE1007440A3 (en) * 1993-08-20 1995-06-13 Philips Electronics Nv Low-pressure mercury vapor discharge lamp.
BE1007914A3 (en) 1993-12-24 1995-11-14 Philips Electronics Nv Low-pressure mercury vapor discharge lamp and method for manufacturing it.
JPH07272688A (en) * 1994-03-25 1995-10-20 Philips Electron Nv Electrodeless low pressure mercury steam discharge lamp
JP4034340B2 (en) * 1994-08-25 2008-01-16 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
CN1083149C (en) 1994-08-25 2002-04-17 皇家菲利浦电子有限公司 Low pressure mercury vapor discharge lamps
US5552665A (en) 1994-12-29 1996-09-03 Philips Electronics North America Corporation Electric lamp having an undercoat for increasing the light output of a luminescent layer
US5602444A (en) 1995-08-28 1997-02-11 General Electric Company Fluorescent lamp having ultraviolet reflecting layer
US5612590A (en) * 1995-12-13 1997-03-18 Philips Electronics North America Corporation Electric lamp having fluorescent lamp colors containing a wide bandwidth emission red phosphor
EP0907961B1 (en) 1997-03-27 2002-08-07 Koninklijke Philips Electronics N.V. Low-pressure mercury discharge lamp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54124581A (en) * 1978-03-20 1979-09-27 Matsushita Electronics Corp Fluorescent lamp
JPS55166856A (en) * 1979-06-13 1980-12-26 Matsushita Electronics Corp Fluorescent lamp
US4447756A (en) * 1980-04-08 1984-05-08 Tokyo Shibaura Denki Kabushiki Kaisha Fluorescent lamp with layer of plural phosphors having different particle sizes
JPS5721065A (en) * 1980-07-15 1982-02-03 Matsushita Electronics Corp Rapid start fluorescent lamp
JPS584258A (en) * 1981-06-30 1983-01-11 Matsushita Electronics Corp Fluorescent lamp
JPH01102845A (en) * 1987-10-14 1989-04-20 Matsushita Electron Corp Rapid starting fluorescent lamp
JPH04304291A (en) * 1991-03-29 1992-10-27 Toshiba Lighting & Technol Corp Fluorescent lamp

Non-Patent Citations (10)

* Cited by examiner, † Cited by third party
Title
DATABASE INSPEC [online] INSTITUTE OF ELECTRICAL ENGINEERS, STEVENAGE, GB; GOLIKOVA I F ET AL: "Fluorescent lamps with three-band radiation spectra", XP002195460, Database accession no. 1627213 *
DATABASE INSPEC [online] INSTITUTE OF ELECTRICAL ENGINEERS, STEVENAGE, GB; SKREBLYUKOV A E ET AL: "Thermally stimulated luminescence of luminophors activated by rare-earth metals", XP002195459, Database accession no. 2572805 *
DATABASE WPI Section Ch Week 197945, Derwent World Patents Index; Class L03, AN 1979-81262B, XP002195462 *
DATABASE WPI Section Ch Week 199249, Derwent World Patents Index; Class L03, AN 1992-404930, XP002195461 *
PATENT ABSTRACTS OF JAPAN vol. 005, no. 044 (E - 050) 24 March 1981 (1981-03-24) *
PATENT ABSTRACTS OF JAPAN vol. 006, no. 087 (E - 108) 25 May 1982 (1982-05-25) *
PATENT ABSTRACTS OF JAPAN vol. 007, no. 076 (E - 167) 30 March 1983 (1983-03-30) *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 344 (E - 797) 3 August 1989 (1989-08-03) *
SVETOTEKHNIKA, OCT. 1980, USSR, no. 10, pages 15 - 16, ISSN: 0039-7067 *
ZHURNAL PRIKLADNOI SPEKTROSKOPII, DEC. 1984, BYELORUSSIAN SSR, USSR, vol. 41, no. 6, pages 921 - 925, ISSN: 0514-7506 *

Also Published As

Publication number Publication date
JP2004508683A (en) 2004-03-18
CN1401130A (en) 2003-03-05
CN100449679C (en) 2009-01-07
EP1323181B1 (en) 2008-08-20
WO2002021569A2 (en) 2002-03-14
EP1323181A2 (en) 2003-07-02
US6534910B1 (en) 2003-03-18
DE60135473D1 (en) 2008-10-02

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