EP2190005A2 - Tube à décharge pour lampe à décharge haute intensité et lampe à décharge haute intensité - Google Patents

Tube à décharge pour lampe à décharge haute intensité et lampe à décharge haute intensité Download PDF

Info

Publication number
EP2190005A2
EP2190005A2 EP09176841A EP09176841A EP2190005A2 EP 2190005 A2 EP2190005 A2 EP 2190005A2 EP 09176841 A EP09176841 A EP 09176841A EP 09176841 A EP09176841 A EP 09176841A EP 2190005 A2 EP2190005 A2 EP 2190005A2
Authority
EP
European Patent Office
Prior art keywords
light
emitting
container
side end
arc tube
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Withdrawn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)
English (en)
Other versions
EP2190005A3 (fr
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/fr
Publication of EP2190005A3 publication Critical patent/EP2190005A3/fr
Withdrawn legal-status Critical Current

Links

Images

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

Definitions

  • Hei10-335059A also disclosed is that when both end faces (end plugs) of the arc tube and surfaces of elongated tubular portions (leg parts) attached to the arc tube are coated with zirconium oxide films, liquefaction and temperature reduction of a metal-halide filling are prevented and excellent color rendering properties are secured.
  • the center line average surface roughness Ra of the inner and outer surfaces of the central light-emitting portion is 1.0 ⁇ m or less, thereby further improving the light-emitting efficiency from the central light-emitting portion.
  • the surface roughness of the light transmission part both the inner and outer surfaces are smooth, and light scattering and light loss are reduced.
  • translucent alumina ceramics have an average particle size of 15 to 50 ⁇ m, both of the translucent properties and the mechanical strength are preferably satisfied.
  • the inner surface 2a and the outer surface 2b of the central light-emitting portion 2 are smooth surfaces, and the outer surfaces 3b of the side end portions 3 are smooth surfaces.
  • the roughened surfaces 6A are formed on the inner surfaces 3a of the side end portions 3.
  • the average surface roughness Ra of the roughened surface 6A is gradually reduced toward the central light-emitting portion from an end on the tubular part side of the side end portion.
  • FIG. 8 illustrates a light-emitting container 5K used for a high-pressure sodium lamp.
  • the inner surface 2a and the outer surface 2b of the central light-emitting portion 2 and the outer surfaces 3b of the side end portions 3 are smooth surfaces.
  • the roughened surfaces 6 are formed on the inner surfaces 3a of the side end portions 3.
  • the entire surface of the core forming mold according to the embodiments 15 and 16 was finished to have a surface roughness Ra of 0.1 ⁇ m, and then surfaces of the portions corresponding to the light shielding parts illustrated in FIGS. 14 and 15 were roughly finished partly to have a surface roughness Ra of 5 ⁇ m using the electric discharge machining.
  • a metal component in which an electrode part including a coil made of tungsten and an introducing conductor made of niobium were joined via molybdenum was inserted into one capillary part in each of the above-described light-emitting containers.
  • a position of a joined portion between the introducing conductor and the molybdenum was temporarily fixed using a jig such that the introducing conductor was located outside the capillary part near the end of the capillary part.
  • annular frit materials for sealing were inserted into the introducing conductor and put on the end of the capillary part, and then that portion was heated and melted up to a predetermined temperature to be hermetically sealed.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
EP09176841A 2008-11-25 2009-11-24 Tube à décharge pour lampe à décharge haute intensité et lampe à décharge haute intensité Withdrawn EP2190005A3 (fr)

Applications Claiming Priority (1)

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

Publications (2)

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

Family

ID=41491567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09176841A Withdrawn EP2190005A3 (fr) 2008-11-25 2009-11-24 Tube à décharge pour lampe à décharge haute intensité et lampe à décharge haute intensité

Country Status (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013050914A1 (fr) * 2011-10-04 2013-04-11 Koninklijke Philips Electronics N.V. Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6862241B2 (ja) * 2017-03-29 2021-04-21 クアーズテック株式会社 焼結シリカ部品の製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708328A (en) 1992-06-03 1998-01-13 General Electric Company Universal burn metal halide lamp
EP0869540A1 (fr) 1997-04-04 1998-10-07 General Electric Company Lampe ceramique à décharge à halogénure métallique et procédé de fabrication
JP2004006198A (ja) 2002-07-26 2004-01-08 Ngk Insulators Ltd 高圧放電灯、照明装置、自動車用ヘッドランプおよび高圧放電灯用発光管
JP2006093045A (ja) 2004-09-27 2006-04-06 Toshiba Lighting & Technology Corp 高圧放電ランプおよび照明装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58185478A (ja) * 1982-04-26 1983-10-29 東芝セラミツクス株式会社 透光性アルミナ磁器の製造方法
JPH03102761A (ja) * 1989-09-07 1991-04-30 Sharp Corp 拡大投写機器用ランプ
JPH03283344A (ja) * 1990-03-30 1991-12-13 Toshiba Lighting & Technol Corp 金属蒸気放電ランプ
JPH0511310U (ja) * 1991-07-19 1993-02-12 西堀 稔 二重管型放電灯
KR950007895A (ko) * 1993-09-24 1995-04-15 박경팔 메탈 할라이드 램프
JPH11273621A (ja) * 1998-03-19 1999-10-08 Ushio Inc セラミック製放電ランプ
DE19843418A1 (de) * 1998-09-22 2000-03-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe und zugehöriges Beleuchtungssystem
JP3654229B2 (ja) * 2001-09-28 2005-06-02 ウシオ電機株式会社 閃光放電ランプ
US7227309B2 (en) * 2002-03-20 2007-06-05 Matsushita Electric Industrial Co., Ltd. Metal halide lamp
JP4297254B2 (ja) * 2003-06-03 2009-07-15 日本碍子株式会社 接合体、発光容器、高圧放電灯用組み立て体および高圧放電灯

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708328A (en) 1992-06-03 1998-01-13 General Electric Company Universal burn metal halide lamp
EP0869540A1 (fr) 1997-04-04 1998-10-07 General Electric Company Lampe ceramique à décharge à halogénure métallique et procédé de fabrication
JPH10335059A (ja) 1997-04-04 1998-12-18 General Electric Co <Ge> セラミックメタルハライドアークランプおよびその製法
JP2004006198A (ja) 2002-07-26 2004-01-08 Ngk Insulators Ltd 高圧放電灯、照明装置、自動車用ヘッドランプおよび高圧放電灯用発光管
JP2006093045A (ja) 2004-09-27 2006-04-06 Toshiba Lighting & Technology Corp 高圧放電ランプおよび照明装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013050914A1 (fr) * 2011-10-04 2013-04-11 Koninklijke Philips Electronics N.V. Lampe aux halogénures pour phare d'automobile et phare équipé de ladite lampe
CN103843108A (zh) * 2011-10-04 2014-06-04 皇家飞利浦有限公司 用于汽车前照灯的金属卤化物灯和具有所述灯的前照灯
CN103843108B (zh) * 2011-10-04 2016-12-28 皇家飞利浦有限公司 用于汽车前照灯的金属卤化物灯和具有所述灯的前照灯

Also Published As

Publication number Publication date
EP2190005A3 (fr) 2012-07-11
JP2010153372A (ja) 2010-07-08
JP5340896B2 (ja) 2013-11-13

Similar Documents

Publication Publication Date Title
US4387067A (en) Ceramic arc tube of metal vapor discharge lamps and a method of producing the same
US6791266B2 (en) Ceramic discharge chamber for a discharge lamp
EP0315261A1 (fr) Lampe à décharge dans la vapeur de sodium à haute pression
JP4961655B2 (ja) 放電ランプ
US7030543B2 (en) Reflector lamp having reduced seal temperature
EP1900004A2 (fr) Lampes ceramiques et leur procede de fabrication
JPWO2008123626A1 (ja) 複合発光管容器
EP2190005A2 (fr) Tube à décharge pour lampe à décharge haute intensité et lampe à décharge haute intensité
US6346495B1 (en) Die pressing arctube bodies
EP1376657B1 (fr) Lampe céramique à halogénure métallique à trois électrodes
JP2891690B1 (ja) ランプとその製造方法
KR100638934B1 (ko) 전기 백열 램프
JPH1064481A (ja) 放電灯用セラミック管及びその製造方法
US20080122361A1 (en) Faceted ceramic hid lamp
US7474057B2 (en) High mercury density ceramic metal halide lamp
US7297037B2 (en) Ceramic discharge chamber for a discharge lamp
KR20200024712A (ko) 방전 램프 및 방전 램프용 전극의 제조 방법
US20080157675A1 (en) High-Pressure Discharge Lamp
US20020180357A1 (en) Lamp with shape having high dimensional accuracy
EP2172961B1 (fr) Récipients lumineux pour lampes à décharge haute luminance
JP4686447B2 (ja) メタルハライドランプ及び車両のヘッドランプ
JP4179132B2 (ja) セラミック製放電ランプ
WO2007019044A1 (fr) Tube à arc en céramique et broches d’extrémité adaptées et leur procédé de fabrication
JPWO2005029535A1 (ja) メタルハライドランプ
JPH0556607B2 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

RIC1 Information provided on ipc code assigned before grant

Ipc: H01J 61/30 20060101AFI20120604BHEP

Ipc: H01J 61/82 20060101ALI20120604BHEP

Ipc: H01J 61/33 20060101ALI20120604BHEP

17P Request for examination filed

Effective date: 20130110

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130404

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20130815