EP1416518A2 - Lampe à arc court à décharge de mercure à haute intensité - Google Patents

Lampe à arc court à décharge de mercure à haute intensité Download PDF

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Publication number
EP1416518A2
EP1416518A2 EP03256860A EP03256860A EP1416518A2 EP 1416518 A2 EP1416518 A2 EP 1416518A2 EP 03256860 A EP03256860 A EP 03256860A EP 03256860 A EP03256860 A EP 03256860A EP 1416518 A2 EP1416518 A2 EP 1416518A2
Authority
EP
European Patent Office
Prior art keywords
lamp
electrodes
arc
envelope
mercury
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Withdrawn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
EP03256860A
Other languages
German (de)
English (en)
Other versions
EP1416518A3 (fr
Inventor
Mahomed Hanif Girach
Barry The Arch House Preston
Michael Justin Vulliamy
Stephen Harold Howe
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of EP1416518A2 publication Critical patent/EP1416518A2/fr
Publication of EP1416518A3 publication Critical patent/EP1416518A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2928—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection

Definitions

  • a generally spherical quartz envelope forms the arc discharge chamber and contains the spaced-apart tungsten electrodes defining a discharge path, the electrodes being connected to current conductors which extend from the lamp to the exterior.
  • the discharge chamber also contains an inert gas such as argon at a pressure of the order of 10-100 kPa; 10 -12 - 10 -8 moles per cubic millimetre of halogen (chlorine, bromine or iodine); and a dose of mercury of at least 0.15 mg per cubic millimetre.
  • halogen chlorine, bromine or iodine
  • a lamp of this kind is described in US-A-2002/0000777.
  • the mercury is vaporised, with a typical vapor pressure of 15 to 25 MPa.
  • the mercury condenses, and generally forms one or more globules within the discharge chamber.

Landscapes

  • Projection Apparatus (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
EP03256860A 2002-10-30 2003-10-30 Lampe à arc court à décharge de mercure à haute intensité Withdrawn EP1416518A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0225254 2002-10-30
GB0225254A GB0225254D0 (en) 2002-10-30 2002-10-30 Short arc high intensity mercury discharge lamp

Publications (2)

Publication Number Publication Date
EP1416518A2 true EP1416518A2 (fr) 2004-05-06
EP1416518A3 EP1416518A3 (fr) 2009-07-01

Family

ID=9946862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03256860A Withdrawn EP1416518A3 (fr) 2002-10-30 2003-10-30 Lampe à arc court à décharge de mercure à haute intensité

Country Status (4)

Country Link
EP (1) EP1416518A3 (fr)
JP (1) JP2004152768A (fr)
CN (2) CN101165847A (fr)
GB (1) GB0225254D0 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007132369A3 (fr) * 2006-05-12 2008-01-24 Philips Intellectual Property Procédé de coupure d'une lampe à décharge haute pression et module d'excitation servant à exciter une lampe à décharge haute pression
WO2008017980A3 (fr) * 2006-08-10 2008-04-17 Philips Intellectual Property Procédés et unités de commande pour commander une lampe à décharge de gaz
JP2015025865A (ja) * 2013-07-24 2015-02-05 株式会社リコー 画像投射装置、制御方法及びプログラム
CN104345529A (zh) * 2013-07-23 2015-02-11 株式会社理光 图像投影设备和控制方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5370237B2 (ja) * 2010-03-30 2013-12-18 岩崎電気株式会社 マイクロ波放電光源装置
JP6155594B2 (ja) * 2012-10-17 2017-07-05 株式会社リコー 画像投射装置、制御方法およびプログラム

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3295517B2 (ja) * 1993-03-18 2002-06-24 松下電器産業株式会社 画像表示装置
JP3246231B2 (ja) * 1994-10-28 2002-01-15 松下電器産業株式会社 放電灯点灯装置
JP3216877B2 (ja) * 1997-11-18 2001-10-09 松下電子工業株式会社 高圧放電ランプ、この高圧放電ランプを光源とした照明光学装置、およびこの照明光学装置を用いた画像表示装置
JP3827492B2 (ja) * 1999-11-01 2006-09-27 株式会社オーク製作所 放電灯
US6759806B2 (en) * 2000-03-13 2004-07-06 Nec Microwave Tube, Ltd. High pressure discharge lamp and method for sealing a bulb thereof
JP3327895B2 (ja) * 2000-04-28 2002-09-24 松下電器産業株式会社 高圧放電ランプ、当該ランプの製造方法および当該ランプの点灯方法並びに点灯装置
JP2001332213A (ja) * 2000-05-24 2001-11-30 Matsushita Electric Ind Co Ltd 高圧水銀ランプ、この高圧水銀ランプを用いた照明光学装置、およびこの照明光学装置を用いた画像表示装置
US6600268B2 (en) * 2000-05-31 2003-07-29 Matsushita Electric Industrial Co., Ltd. Short arc mercury lamp and lamp unit
JP3330591B2 (ja) * 2000-05-31 2002-09-30 松下電器産業株式会社 ショートアーク型水銀ランプおよびランプユニット
DE10028657A1 (de) * 2000-06-09 2001-12-13 Hella Kg Hueck & Co Verfahren und Schaltungsanordnung zur Reduzierung des Quecksilberkondensats auf den Elektroden einer Xenonlampe in einem Kraftfahrzeug
JP4070420B2 (ja) * 2001-03-23 2008-04-02 フェニックス電機株式会社 超高圧放電灯の点灯方法と点灯装置
JP2003017280A (ja) * 2001-06-27 2003-01-17 Matsushita Electric Ind Co Ltd 高圧放電ランプの点灯装置
JP3852307B2 (ja) * 2001-07-13 2006-11-29 ウシオ電機株式会社 光源装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007132369A3 (fr) * 2006-05-12 2008-01-24 Philips Intellectual Property Procédé de coupure d'une lampe à décharge haute pression et module d'excitation servant à exciter une lampe à décharge haute pression
US8008872B2 (en) 2006-05-12 2011-08-30 Koninklijke Philips Electronics N.V. Method of shutting down a high pressure discharge lamp and driving unit for driving a high pressure discharge lamp
WO2008017980A3 (fr) * 2006-08-10 2008-04-17 Philips Intellectual Property Procédés et unités de commande pour commander une lampe à décharge de gaz
CN104345529A (zh) * 2013-07-23 2015-02-11 株式会社理光 图像投影设备和控制方法
EP2829913A3 (fr) * 2013-07-23 2015-04-01 Ricoh Company, Ltd. Appareil de projection d'images, procédé de contrôle et support de stockage lisible sur ordinateur
US9429827B2 (en) 2013-07-23 2016-08-30 Ricoh Company, Ltd. Image projection apparatus, control method, and computer-readable storage medium
JP2015025865A (ja) * 2013-07-24 2015-02-05 株式会社リコー 画像投射装置、制御方法及びプログラム

Also Published As

Publication number Publication date
JP2004152768A (ja) 2004-05-27
GB0225254D0 (en) 2002-12-11
CN100401452C (zh) 2008-07-09
CN101165847A (zh) 2008-04-23
CN1505092A (zh) 2004-06-16
EP1416518A3 (fr) 2009-07-01

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