EP1722399A3 - High-pressure discharge lamp - Google Patents

High-pressure discharge lamp Download PDF

Info

Publication number
EP1722399A3
EP1722399A3 EP06001319A EP06001319A EP1722399A3 EP 1722399 A3 EP1722399 A3 EP 1722399A3 EP 06001319 A EP06001319 A EP 06001319A EP 06001319 A EP06001319 A EP 06001319A EP 1722399 A3 EP1722399 A3 EP 1722399A3
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
pressure discharge
gas space
space
discharge
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.)
Pending
Application number
EP06001319A
Other languages
German (de)
French (fr)
Other versions
EP1722399A2 (en
Inventor
Uwe Prof. Krönert
Jeremy Woffendin
Michael Fletcher
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.)
Heraeus Noblelight Ltd
Original Assignee
Heraeus Noblelight 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 Heraeus Noblelight Ltd filed Critical Heraeus Noblelight Ltd
Publication of EP1722399A2 publication Critical patent/EP1722399A2/en
Publication of EP1722399A3 publication Critical patent/EP1722399A3/en
Pending 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
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/90—Lamps suitable only for intermittent operation, e.g. flash lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0732—Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode
    • 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
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

Die Erfindung betrifft eine Hochdruckentladungslampe mit einem zwei gegenüberliegende Enden aufweisenden, durch einen Hüllkörper (1) aus einem Glas begrenzten Gasraum, wobei an den Enden jeweils eine in den Gasraum ragende Elektrode als Anode (3) und Kathode (4) im Gasraum angeordnet ist, wobei zwischen den Elektroden ein Entladungsraum gebildet ist, und besteht darin, dass die beiden Endbereiche des Gasraums mindestens außerhalb des Entladungsraums unterschiedlich ausgebildet sind.The invention relates to a high-pressure discharge lamp having a two opposite ends, by an enveloping body (1) of a glass limited gas space, wherein at the ends of each projecting into the gas space electrode as the anode (3) and cathode (4) is arranged in the gas space, wherein a discharge space is formed between the electrodes, and is that the two end portions of the gas space are formed differently at least outside the discharge space.

EP06001319A 2005-03-04 2006-01-23 High-pressure discharge lamp Pending EP1722399A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0504548A GB2423862A (en) 2005-03-04 2005-03-04 High-pressure discharge lamp having constructional details for reducing devitrification of glass

Publications (2)

Publication Number Publication Date
EP1722399A2 EP1722399A2 (en) 2006-11-15
EP1722399A3 true EP1722399A3 (en) 2008-06-11

Family

ID=34451840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06001319A Pending EP1722399A3 (en) 2005-03-04 2006-01-23 High-pressure discharge lamp

Country Status (4)

Country Link
US (1) US7489078B2 (en)
EP (1) EP1722399A3 (en)
JP (1) JP2006245004A (en)
GB (1) GB2423862A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4998826B2 (en) * 2008-01-18 2012-08-15 ウシオ電機株式会社 Flash lamp and method of manufacturing flash lamp

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474278A (en) * 1967-09-05 1969-10-21 Duro Test Corp Compact arc pressure lamp with internal gas circulation through cathodic plasma jet action
DE3009733A1 (en) * 1979-07-11 1981-01-15 Ushio Electric Inc FLASH DISCHARGE LAMP
SU1356038A1 (en) * 1984-06-28 1987-11-30 А.А. Дило н Electrode for gas-discharge tubes of the high and superhigh pressure type
GB2199693A (en) * 1986-12-02 1988-07-13 Noblelight Ltd Flash lamps
JPH08124521A (en) * 1994-10-25 1996-05-17 Fuji Electric Co Ltd Excitation lamp for laser
US6531832B1 (en) * 1999-04-28 2003-03-11 West Electric Co., Ltd. Discharge lamp and electronic flash device using the same
US20040169476A1 (en) * 2002-03-05 2004-09-02 Dietmar Ehrlichmann Mercury short arched lamp with a cathode containing lanthanum oxide

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705325A (en) * 1971-01-21 1972-12-05 Bell Telephone Labor Inc Short arc discharge lamp
US4001624A (en) * 1975-06-06 1977-01-04 Gte Sylvania Incorporated Soft glass flashtube
AU528293B2 (en) * 1980-02-06 1983-04-21 Ngk Insulators, Ltd. Discharge lamp tube
DE3616192A1 (en) * 1986-05-14 1987-11-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh HIGH PRESSURE DISCHARGE LAMP AND METHOD FOR OPERATING THE HIGH PRESSURE DISCHARGE LAMP
DE3842769A1 (en) 1988-12-19 1990-06-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh METHOD FOR PRODUCING A TWO-SIDED HIGH PRESSURE DISCHARGE LAMP
GB9525776D0 (en) 1995-12-16 1996-02-14 Heraeus Noblelight Limited Improved lamp construction
US6729925B2 (en) 2001-01-24 2004-05-04 Matsushita Electric Industrial Co., Ltd. Method for manufacturing discharge tube and discharge lamp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474278A (en) * 1967-09-05 1969-10-21 Duro Test Corp Compact arc pressure lamp with internal gas circulation through cathodic plasma jet action
DE3009733A1 (en) * 1979-07-11 1981-01-15 Ushio Electric Inc FLASH DISCHARGE LAMP
SU1356038A1 (en) * 1984-06-28 1987-11-30 А.А. Дило н Electrode for gas-discharge tubes of the high and superhigh pressure type
GB2199693A (en) * 1986-12-02 1988-07-13 Noblelight Ltd Flash lamps
JPH08124521A (en) * 1994-10-25 1996-05-17 Fuji Electric Co Ltd Excitation lamp for laser
US6531832B1 (en) * 1999-04-28 2003-03-11 West Electric Co., Ltd. Discharge lamp and electronic flash device using the same
US20040169476A1 (en) * 2002-03-05 2004-09-02 Dietmar Ehrlichmann Mercury short arched lamp with a cathode containing lanthanum oxide

Also Published As

Publication number Publication date
GB0504548D0 (en) 2005-04-13
US7489078B2 (en) 2009-02-10
EP1722399A2 (en) 2006-11-15
GB2423862A (en) 2006-09-06
JP2006245004A (en) 2006-09-14
US20060202604A1 (en) 2006-09-14

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