EP0884763A3 - Sealing molybdenum foil in glas and electric lamp provided with same sealed molybdenum foil - Google Patents

Sealing molybdenum foil in glas and electric lamp provided with same sealed molybdenum foil Download PDF

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Publication number
EP0884763A3
EP0884763A3 EP98109117A EP98109117A EP0884763A3 EP 0884763 A3 EP0884763 A3 EP 0884763A3 EP 98109117 A EP98109117 A EP 98109117A EP 98109117 A EP98109117 A EP 98109117A EP 0884763 A3 EP0884763 A3 EP 0884763A3
Authority
EP
European Patent Office
Prior art keywords
molybdenum foil
glas
electric lamp
lamp provided
sealing
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.)
Granted
Application number
EP98109117A
Other languages
German (de)
French (fr)
Other versions
EP0884763B1 (en
EP0884763A2 (en
Inventor
Lothar Vollmer
Dirk Grundmann
Joachim Öhmke
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0884763A2 publication Critical patent/EP0884763A2/en
Publication of EP0884763A3 publication Critical patent/EP0884763A3/en
Application granted granted Critical
Publication of EP0884763B1 publication Critical patent/EP0884763B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H01J5/38—Pinched-stem or analogous seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/32—Sealing leading-in conductors
    • H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device
    • H01J9/326—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device making pinched-stem or analogous seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
    • H01J61/368—Pinched seals or analogous seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/36—Joining connectors to internal electrode system

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Glass Compositions (AREA)

Abstract

Die Erfindung betrifft eine Molybdänfolieneinschmelzung in Quarzglas, die beispielsweise für gasdichte Stromdurchführungen von Lampengefäßen verwendet werden kann. Die durch Schnittkanten 4b begrenzten Enden 4c der im Quarzglas 1 eingeschmolzenen Molybdänfolie 4 sind erfindungsgemäß keilförmig ausgebildet. Die Keilform entsteht durch Walzen der Folienenden 4c. Dadurch werden Grate an den Schnittkanten 4b beseitigt und die Gefahr der Bildung von Rissen oder Sprüngen im Quarzglas 1 vorgebeugt.

Figure 00000001
The invention relates to a molybdenum foil melting in quartz glass, which can be used, for example, for gas-tight leadthroughs of lamp vessels. The ends 4c of the molybdenum foil 4 which are melted in the quartz glass 1 and are delimited by cut edges 4b are wedge-shaped according to the invention. The wedge shape is created by rolling the film ends 4c. As a result, burrs on the cut edges 4b are eliminated and the risk of cracks or cracks forming in the quartz glass 1 is prevented.
Figure 00000001
EP98109117A 1997-06-11 1998-05-19 Sealing molybdenum foil in glas and electric lamp provided with same sealed molybdenum foil Expired - Lifetime EP0884763B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19724544A DE19724544A1 (en) 1997-06-11 1997-06-11 Molybdenum foil sealing in glass and electric lamp with such a molybdenum foil sealing
DE19724544 1997-06-11

Publications (3)

Publication Number Publication Date
EP0884763A2 EP0884763A2 (en) 1998-12-16
EP0884763A3 true EP0884763A3 (en) 1999-03-17
EP0884763B1 EP0884763B1 (en) 2003-07-23

Family

ID=7832101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109117A Expired - Lifetime EP0884763B1 (en) 1997-06-11 1998-05-19 Sealing molybdenum foil in glas and electric lamp provided with same sealed molybdenum foil

Country Status (8)

Country Link
EP (1) EP0884763B1 (en)
JP (1) JPH117918A (en)
KR (1) KR100541506B1 (en)
CA (1) CA2240230A1 (en)
DE (2) DE19724544A1 (en)
ES (1) ES2205318T3 (en)
HU (1) HU221393B1 (en)
TW (1) TW423025B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826402A (en) * 1986-03-28 1989-05-02 Nachtrieb Paul W High-capacity centrifugal pump
JP3664972B2 (en) * 2000-12-05 2005-06-29 株式会社小糸製作所 Arc tube
JP3613239B2 (en) 2001-12-04 2005-01-26 ウシオ電機株式会社 Short arc type ultra high pressure discharge lamp
DE502004008963D1 (en) 2003-12-22 2009-03-26 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electrode system for a discharge lamp, discharge lamp with such an electrode system and method for producing such an electrode system
JP4320760B2 (en) 2004-03-10 2009-08-26 スタンレー電気株式会社 Discharge lamp
DE102007020067B4 (en) 2007-04-27 2013-07-18 Osram Gmbh Process for producing a molybdenum foil for lamp construction and molybdenum foil and lamp with molybdenum foil
DE102007055171A1 (en) 2007-11-19 2009-05-20 Osram Gesellschaft mit beschränkter Haftung Molybdenum foil manufacturing method for use in current supply device for electrical lamp, involves coating surface of molybdenum foil with ruthenium containing material before blasting, where coating is performed using sputtering technique
CN101965621A (en) * 2008-02-27 2011-02-02 奥斯兰姆有限公司 Melting film, method for the production thereof, and lamp having such a film
JP2011049136A (en) * 2009-07-29 2011-03-10 Panasonic Corp Method of manufacturing metal foil for high-pressure discharge lamp, high-pressure discharge lamp and display device
TW201341126A (en) 2012-04-13 2013-10-16 New Way Tools Co Ltd Ratchet wrench capable of rotation in smaller angle
TW201412467A (en) * 2012-09-20 2014-04-01 New Way Tools Co Ltd Easy-to-assemble ratchet wrench
TW201527052A (en) 2014-01-15 2015-07-16 New Way Tools Co Ltd Easy-to-assembly ratchet wrench

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR982369A (en) * 1949-03-05 1951-06-11 Belmag Quarzbrenner A G Gas discharge lamp
FR1068795A (en) * 1952-02-23 1954-06-30 Lampes Sa Advanced feed conductor for electric lamps and machine to manufacture it
US2966607A (en) * 1959-05-26 1960-12-27 Duro Test Corp High pressure short arc lamps and method of making same
DE1927796A1 (en) * 1968-06-06 1970-07-02 Gen Electric Gasket joint assembly and method for making same
US4587454A (en) * 1984-05-17 1986-05-06 Gte Products Corporation Incandescent lamp with improved press seal
EP0579313A1 (en) * 1992-07-14 1994-01-19 Koninklijke Philips Electronics N.V. Electric lamp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1594976A (en) * 1978-05-24 1981-08-05 Gen Electric Co Ltd High pressure electric discharge lamps

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR982369A (en) * 1949-03-05 1951-06-11 Belmag Quarzbrenner A G Gas discharge lamp
FR1068795A (en) * 1952-02-23 1954-06-30 Lampes Sa Advanced feed conductor for electric lamps and machine to manufacture it
US2966607A (en) * 1959-05-26 1960-12-27 Duro Test Corp High pressure short arc lamps and method of making same
DE1927796A1 (en) * 1968-06-06 1970-07-02 Gen Electric Gasket joint assembly and method for making same
US4587454A (en) * 1984-05-17 1986-05-06 Gte Products Corporation Incandescent lamp with improved press seal
EP0579313A1 (en) * 1992-07-14 1994-01-19 Koninklijke Philips Electronics N.V. Electric lamp

Also Published As

Publication number Publication date
EP0884763B1 (en) 2003-07-23
EP0884763A2 (en) 1998-12-16
CA2240230A1 (en) 1998-12-11
HUP9801316A3 (en) 2001-02-28
ES2205318T3 (en) 2004-05-01
KR100541506B1 (en) 2006-02-28
HU9801316D0 (en) 1998-08-28
KR19990006871A (en) 1999-01-25
DE19724544A1 (en) 1998-12-17
HU221393B1 (en) 2002-09-28
JPH117918A (en) 1999-01-12
DE59809061D1 (en) 2003-08-28
TW423025B (en) 2001-02-21
HUP9801316A2 (en) 1999-01-28

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