EP2190005A3 - Light-emitting container for high-intensity discharge lamp and high-intensity discharge lamp - Google Patents

Light-emitting container for high-intensity discharge lamp and high-intensity discharge lamp Download PDF

Info

Publication number
EP2190005A3
EP2190005A3 EP09176841A EP09176841A EP2190005A3 EP 2190005 A3 EP2190005 A3 EP 2190005A3 EP 09176841 A EP09176841 A EP 09176841A EP 09176841 A EP09176841 A EP 09176841A EP 2190005 A3 EP2190005 A3 EP 2190005A3
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
intensity discharge
light
emitting container
side end
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Withdrawn
Application number
EP09176841A
Other languages
German (de)
French (fr)
Other versions
EP2190005A2 (en
Inventor
Keiichiro Watanabe
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of EP2190005A2 publication Critical patent/EP2190005A2/en
Publication of EP2190005A3 publication Critical patent/EP2190005A3/en
Withdrawn legal-status Critical Current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
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

A light-emitting container 5A for a high-intensity discharge lamp has an arc tube comprising a translucent polycrystalline ceramics. The arc tube has a central light-emitting portion 2 and side end portions 3 provided on both sides of the central light-emitting portion 2, respectively, and tubular portions 1 protruding from both of the side end portions, respectively. The inner surfaces of the side end portions are roughened surfaces.
EP09176841A 2008-11-25 2009-11-24 Light-emitting container for high-intensity discharge lamp and high-intensity discharge lamp Withdrawn EP2190005A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008299767 2008-11-25

Publications (2)

Publication Number Publication Date
EP2190005A2 EP2190005A2 (en) 2010-05-26
EP2190005A3 true EP2190005A3 (en) 2012-07-11

Family

ID=41491567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09176841A Withdrawn EP2190005A3 (en) 2008-11-25 2009-11-24 Light-emitting container for high-intensity discharge lamp and high-intensity discharge lamp

Country Status (2)

Country Link
EP (1) EP2190005A3 (en)
JP (1) JP5340896B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2745308B1 (en) * 2011-10-04 2015-12-09 Koninklijke Philips N.V. Metal halide lamp for automotive headlamp and headlamp with said lamp
JP6862241B2 (en) * 2017-03-29 2021-04-21 クアーズテック株式会社 Manufacturing method of sintered silica parts

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799601A (en) * 1982-04-26 1989-01-24 Toshiba Ceramics Co., Ltd. Translucent alumina ceramic tube and a process for making same
JPH03283344A (en) * 1990-03-30 1991-12-13 Toshiba Lighting & Technol Corp Metallic vapor discharge lamp
US5528104A (en) * 1993-09-24 1996-06-18 Samsung Display Devices Co., Ltd. Metal halide lamp with pleated luminous tube envelope
EP0869540A1 (en) * 1997-04-04 1998-10-07 General Electric Company Ceramic metal halide arc lamp and method of making it
JPH11273621A (en) * 1998-03-19 1999-10-08 Ushio Inc Ceramic discharge lamp
EP0989587A1 (en) * 1998-09-22 2000-03-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH High pressure discharge lamp and associated luminaire
JP2003109537A (en) * 2001-09-28 2003-04-11 Ushio Inc Flash discharge lamp
US20030178941A1 (en) * 2002-03-20 2003-09-25 Matsushita Electric Industrial Co., Ltd. Metal halide lamp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03102761A (en) * 1989-09-07 1991-04-30 Sharp Corp Lamp for enlarged projection apparatus
JPH0511310U (en) * 1991-07-19 1993-02-12 西堀 稔 Double tube discharge lamp
US5708328A (en) 1992-06-03 1998-01-13 General Electric Company Universal burn metal halide lamp
JP2004006198A (en) 2002-07-26 2004-01-08 Ngk Insulators Ltd High pressure discharge lamp, lighting system, headlamp for automobile, and arc tube for high pressure discharge lamp
JP4297254B2 (en) * 2003-06-03 2009-07-15 日本碍子株式会社 Joint, luminous container, high pressure discharge lamp assembly and high pressure discharge lamp
JP2006093045A (en) 2004-09-27 2006-04-06 Toshiba Lighting & Technology Corp High-pressure discharge lamp and lighting system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799601A (en) * 1982-04-26 1989-01-24 Toshiba Ceramics Co., Ltd. Translucent alumina ceramic tube and a process for making same
JPH03283344A (en) * 1990-03-30 1991-12-13 Toshiba Lighting & Technol Corp Metallic vapor discharge lamp
US5528104A (en) * 1993-09-24 1996-06-18 Samsung Display Devices Co., Ltd. Metal halide lamp with pleated luminous tube envelope
EP0869540A1 (en) * 1997-04-04 1998-10-07 General Electric Company Ceramic metal halide arc lamp and method of making it
JPH11273621A (en) * 1998-03-19 1999-10-08 Ushio Inc Ceramic discharge lamp
EP0989587A1 (en) * 1998-09-22 2000-03-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH High pressure discharge lamp and associated luminaire
JP2003109537A (en) * 2001-09-28 2003-04-11 Ushio Inc Flash discharge lamp
US20030178941A1 (en) * 2002-03-20 2003-09-25 Matsushita Electric Industrial Co., Ltd. Metal halide lamp

Also Published As

Publication number Publication date
JP5340896B2 (en) 2013-11-13
EP2190005A2 (en) 2010-05-26
JP2010153372A (en) 2010-07-08

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