EP1560258A2 - Lampe à incandescence pour phare de véhicule - Google Patents

Lampe à incandescence pour phare de véhicule Download PDF

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Publication number
EP1560258A2
EP1560258A2 EP04027141A EP04027141A EP1560258A2 EP 1560258 A2 EP1560258 A2 EP 1560258A2 EP 04027141 A EP04027141 A EP 04027141A EP 04027141 A EP04027141 A EP 04027141A EP 1560258 A2 EP1560258 A2 EP 1560258A2
Authority
EP
European Patent Office
Prior art keywords
filament
shading device
incandescent
hook
incandescent lamp
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Withdrawn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
EP04027141A
Other languages
German (de)
English (en)
Other versions
EP1560258A3 (fr
Inventor
Christian Seichter
Klaus Wittmann
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
Priority claimed from DE2003159152 external-priority patent/DE10359152A1/de
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1560258A2 publication Critical patent/EP1560258A2/fr
Publication of EP1560258A3 publication Critical patent/EP1560258A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp

Definitions

  • the invention relates to an incandescent lamp for vehicle headlights according to the preamble of patent claim 1.
  • it is a two-filament halogen incandescent lamp for motor vehicle headlights.
  • Such an incandescent lamp is for example in the patent application DE 195 44 012 disclosed.
  • This patent application describes a two-filament halogen incandescent lamp for a motor vehicle headlight with two incandescent filaments and a shading device, which are arranged in the Lampengetschreib.
  • One of the filaments that as Secondary filament is called, usually serves to generate the low beam while the other filament, referred to as the main filament, usually used to generate the high beam.
  • the secondary spiral is close to the shading device arranged so that their light from the shading device partially shaded.
  • a Wendelabgang the Mauchtl is by a Penetrated fürbruch in the shading device and with a power supply wire welded. The breakthrough can be an unwanted increase lead the scattered light component.
  • the incandescent lamp according to the invention has at least one filament and a shading device for the at least one filament, which is in a lamp vessel are arranged, wherein the shading device is a hook-shaped tab has, which extend at a transverse to the helical axis of the at least one filament Edge of the shading device is formed and that with a spiral outlet the at least one filament is connected.
  • the shading device and the hook-shaped tab are made of a metal sheet shaped. This allows the tab already during production the shading device produced as part of the shading device become.
  • the Wendelabgang connected to the tab is the at least one filament advantageously surrounded by a metal foil of molybdenum or tantalum to to ensure a good weld.
  • a metal foil of molybdenum or tantalum can be better with the preferably made of molybdenum sheet metal Shading device or with the tab of the shading device weld as the filament spiral out of tungsten filament.
  • the preferred embodiment of the invention is a Two-filament halogen incandescent lamps intended for use in motor vehicle headlights is.
  • This lamp has two filaments 4, 5 and a shading 6, the in a substantially cylindrical lamp vessel 1 made of tempered glass or quartz glass are included.
  • the first filament 4, also called a secondary filament is used to generate the low beam and is located close to the shading 6, which partly shadows the light emitted by the secondary spiral 4.
  • the second filament 5, which is also referred to as a main filament, is used to generate of the high beam.
  • the lamp vessel 1 has a sealed end 1a, which in the Lamp base 2 is fixed.
  • the dome 1 b of the lamp vessel 1 is provided with a light-absorbing black or silver-colored coating provided.
  • the circular cylindrical, translucent area of the lamp vessel 1 can optionally with a translucent Blue or bluish coating can be added to the color temperature of the light emitted by the lamp to about 4000 Kelvin.
  • the Lamp base 2 has three tabs 3, each via a power supply 7, 8, 9 are electrically connected to the filaments 4, 5.
  • the power supply lines 7, 8, 9 are gas-tight in the sealed end 1a of the lamp vessel 1 embedded.
  • the quartz glass bar 10 serves to fix the Stromzuersdraihte 7, 8, 9 during assembly of the lamp frame 4, 5, 6, 7, 8, 9. Details of the invention Incandescent filament suspension are shown in FIG.
  • the first spiral outlet 41 of the secondary spiral 4 is covered with a molybdenum foil 11, formed with the free leg 611 of the shader 6, hook-shaped Tab 61 is welded.
  • the free leg 611 extends parallel to the helical axis and parallel to the first helical departure 41 of the auxiliary helix 4.
  • the other leg 612 of the hook-shaped tab 61 is at a transverse to the helical axis the auxiliary spiral 4 extending edge of the Abschatters 6 is formed.
  • the hook-shaped Tab 61 has approximately the shape of the letter U, is one piece formed with the shielding 6 and consists, as well as the shader 6, of molybdenum sheet.
  • the width of the tab 61 is 2 mm and its thickness corresponds to Thickness of molybdenum sheet from which shader 6 is made.
  • the of the Secondary spiral 4 opposite surface of the Abschatters 6 is connected to the power supply wire 8 welded.
  • the second spiral outlet 42 of the secondary coil 4 is of surrounded by a molybdenum foil 11 and welded to the Stromzutrynmg 9.
  • the first spiral outlet 51 of the main coil 5 is wrapped with a molybdenum foil 11 and welded to the power supply 8, while the second, also from a Molybdenum foil 11 wound coil outlet 52 welded to the power supply 7 is.
  • the invention is not limited to the embodiments explained in more detail above.
  • the free leg 611 of the hook-shaped tab 61 does not necessarily have run parallel to the filament outlet 41 of the filament 4, but instead instead also be arranged transversely to it.
  • the tab 61 may instead of U-shaped on another way to be bent to a hook.
  • the two filaments 4, 5 must not necessarily single-helical light-emitting sections 43 and uncoiled ones Have spiral outlets, but instead can also double-wound light-emitting sections and single-helical coil outlets have.
  • the molybdenum foils 11 can be dispensed with.
  • the molybdenum foils 11 serve only as a welding aid, since they better with the also consisting of molybdenum power supply wires 7, 8. 9 weldable are as the Wolfram existing Wendelab réelle the filaments 4, 5.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP04027141A 2003-12-12 2004-11-15 Lampe à incandescence pour phare de véhicule Withdrawn EP1560258A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10358677 2003-12-12
DE10358677 2003-12-12
DE2003159152 DE10359152A1 (de) 2003-12-16 2003-12-16 Glühlampe für Fahrzeugscheinwerfer
DE10359152 2003-12-16

Publications (2)

Publication Number Publication Date
EP1560258A2 true EP1560258A2 (fr) 2005-08-03
EP1560258A3 EP1560258A3 (fr) 2008-01-23

Family

ID=34654865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04027141A Withdrawn EP1560258A3 (fr) 2003-12-12 2004-11-15 Lampe à incandescence pour phare de véhicule

Country Status (2)

Country Link
US (1) US20050128763A1 (fr)
EP (1) EP1560258A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104319225A (zh) * 2014-09-12 2015-01-28 昆山博文照明科技有限公司 电白炽灯泡及其制造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT8564U1 (de) * 2005-06-29 2006-09-15 Plansee Se Halogenglühlampe mit abblendkappe aus mo-legierung
DE102006060025A1 (de) * 2006-12-19 2008-06-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schweißhilfe für eine Glühwendel
CN104392892A (zh) * 2013-11-15 2015-03-04 朱惠冲 一种汽车前照灯内配光屏及其制备材料

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7513429A (nl) * 1975-11-18 1977-05-23 Philips Nv Halogeen-gloeilamp.
DD224445A1 (de) * 1984-06-07 1985-07-03 Narva Gluehlampen Halogengluehlampe mit einer im lampengestell angeordneten abblendkappe
US5578893A (en) * 1993-11-16 1996-11-26 Piaa Corporation Bulb for vehicular lighting equipment
DE4428357A1 (de) * 1994-08-10 1996-02-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Kittlos gesockelte Halogenglühlampe
DE19544012A1 (de) * 1995-11-27 1997-05-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe mit Abblendkappe und Verfahren zur Herstellung einer derartigen Lampe sowie Abblendkappe für eine elektrische Glühlampe
DE10145427A1 (de) * 2001-09-14 2003-04-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glühlampe für Kraftfahrzeugscheinwerfer
DE10219729A1 (de) * 2002-05-02 2003-11-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glühlampe für Kraftfahrzeugscheinwerfer
DE10306178A1 (de) * 2003-02-13 2004-08-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Glühlampe für Fahrzeugscheinwerfer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104319225A (zh) * 2014-09-12 2015-01-28 昆山博文照明科技有限公司 电白炽灯泡及其制造方法

Also Published As

Publication number Publication date
EP1560258A3 (fr) 2008-01-23
US20050128763A1 (en) 2005-06-16

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