EP0263379A1 - Lampe à éclair - Google Patents

Lampe à éclair Download PDF

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Publication number
EP0263379A1
EP0263379A1 EP87114059A EP87114059A EP0263379A1 EP 0263379 A1 EP0263379 A1 EP 0263379A1 EP 87114059 A EP87114059 A EP 87114059A EP 87114059 A EP87114059 A EP 87114059A EP 0263379 A1 EP0263379 A1 EP 0263379A1
Authority
EP
European Patent Office
Prior art keywords
tube
electrodes
flash lamp
glass
electrode
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Withdrawn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
EP87114059A
Other languages
German (de)
English (en)
Inventor
Ingo Dipl.-Phys. Dünisch
Eugen Achter
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.)
Heimann GmbH
Original Assignee
Heimann GmbH
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 Heimann GmbH filed Critical Heimann GmbH
Publication of EP0263379A1 publication Critical patent/EP0263379A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/361—Seals between parts of vessel
    • H01J61/363—End-disc seals or plug seals
    • 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

Definitions

  • the invention relates to a flash lamp with a translucent tube in which two electrodes are located, which are tightly connected to the tube.
  • Discharge flash lamps which have a tube made of tempered glass as the discharge vessel, the thermal expansion of which is matched to that of the electrodes used (tungsten, molybdenum) and enables automatic mass production.
  • the invention has for its object to design a flash lamp so that it allows economical mass production with high resilience.
  • the tube consists of aluminum oxide Al2O3.
  • Al2O3 has a high resistance to the arc. Its thermal expansion, which matches niobium and certain electrode alloys, enables economical mass production.
  • FIG. 1 to 3 one end of a flash lamp is shown, which has a tube 1 made of translucent Al2O3, with which two electrodes are tightly connected, of which the electrode 2 is shown.
  • the electrode 2 is brazed with braze 3 to a cap 4, which covers the end of the tube 1.
  • the tube 1 is metallized at its end and tightly connected to the cap 4 by a hard solder 5.
  • the materials for the electrode 2, the cap 4 and the solders 3 and 5 are chosen so that their thermal expansion is approximately equal to the thermal expansion of Al2O3. As a material for the electrode 2 and the cap 4 comes z. B. Niobium in question.
  • the electrode 2 is hermetically connected to the tube 1 by a glass plug 6, which is fused on the one hand to the electrode 2 and on the other hand to the tube 1.
  • the material of the glass plug 6 must have exactly the same thermal expansion as that of Al2O3 and the material of the electrode 2, z. B. niobium.
  • the example according to FIG. 3 again has a glass plug 7 which is fused directly to the electrode 2. Between the tube 1 and the glass plug 7, however, a glass solder 8 is provided, which enables easy connection. In this example too, all four components 1, 2, 7, 8 must match in their thermal expansion.
  • Niobium was mentioned as the material for the metal parts, namely the electrodes and possibly the metal caps in the example according to FIG. 1.
  • suitable metal alloys can also be used which, in their thermal expansion, match Al2O3 and, if appropriate, glass.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
EP87114059A 1986-10-06 1987-09-25 Lampe à éclair Withdrawn EP0263379A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3634006 1986-10-06
DE3634006 1986-10-06

Publications (1)

Publication Number Publication Date
EP0263379A1 true EP0263379A1 (fr) 1988-04-13

Family

ID=6311159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114059A Withdrawn EP0263379A1 (fr) 1986-10-06 1987-09-25 Lampe à éclair

Country Status (2)

Country Link
EP (1) EP0263379A1 (fr)
JP (1) JPS6360265U (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0392060A1 (fr) * 1989-04-14 1990-10-17 Heimann Optoelectronics GmbH Lampe-éclair
EP0786797A3 (fr) * 1996-01-29 1997-11-12 General Electric Company Tube à arc pour lampe à décharge haute pression
WO2001011653A1 (fr) * 1999-08-05 2001-02-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe a decharge gazeuse et procede de production correspondant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4548212B2 (ja) * 2005-05-17 2010-09-22 ウシオ電機株式会社 閃光放電ランプ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004173A (en) * 1965-12-27 1977-01-18 Sydney Alfred Richard Rigden Niobium alumina sealing and product produced thereby
US4147952A (en) * 1974-12-12 1979-04-03 Gte Sylvania Incorporated Method of sealing alumina arc tube
US4203050A (en) * 1977-07-28 1980-05-13 Heimann Gmbh Gas discharge lamp and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004173A (en) * 1965-12-27 1977-01-18 Sydney Alfred Richard Rigden Niobium alumina sealing and product produced thereby
US4147952A (en) * 1974-12-12 1979-04-03 Gte Sylvania Incorporated Method of sealing alumina arc tube
US4203050A (en) * 1977-07-28 1980-05-13 Heimann Gmbh Gas discharge lamp and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0392060A1 (fr) * 1989-04-14 1990-10-17 Heimann Optoelectronics GmbH Lampe-éclair
US5091675A (en) * 1989-04-14 1992-02-25 Heimann Gmbh Flashbulb having hard glass containing emitter substances
EP0786797A3 (fr) * 1996-01-29 1997-11-12 General Electric Company Tube à arc pour lampe à décharge haute pression
US5866982A (en) * 1996-01-29 1999-02-02 General Electric Company Arctube for high pressure discharge lamp
WO2001011653A1 (fr) * 1999-08-05 2001-02-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe a decharge gazeuse et procede de production correspondant
US6605892B1 (en) 1999-08-05 2003-08-12 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Gas discharge lamp and method for the production thereof

Also Published As

Publication number Publication date
JPS6360265U (fr) 1988-04-21

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Inventor name: DUENISCH, INGO, DIPL.-PHYS.

Inventor name: ACHTER, EUGEN