EP0391482A2 - Lampe électrique à incandescence - Google Patents

Lampe électrique à incandescence Download PDF

Info

Publication number
EP0391482A2
EP0391482A2 EP90200782A EP90200782A EP0391482A2 EP 0391482 A2 EP0391482 A2 EP 0391482A2 EP 90200782 A EP90200782 A EP 90200782A EP 90200782 A EP90200782 A EP 90200782A EP 0391482 A2 EP0391482 A2 EP 0391482A2
Authority
EP
European Patent Office
Prior art keywords
incandescent
current supply
axis
supply conductors
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Withdrawn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
EP90200782A
Other languages
German (de)
English (en)
Other versions
EP0391482A3 (fr
Inventor
Georg Zander
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0391482A2 publication Critical patent/EP0391482A2/fr
Publication of EP0391482A3 publication Critical patent/EP0391482A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/16—Electric connection thereto

Definitions

  • the invention relates to an electric incandescent lamp comprising a lamp vessel having an axis, incandescent bodies arranged cross to that axis, each such body having an axis and comprising a first leg, which extends substantially in the direction of the axis of the incandescent body, and a second leg, first and second current supply conductors entering the lamp vessel next to one another, having a respective end portion, each of these conductors being connected with its end portion to a first or second leg, respectively, of an incandescent body, which leg is cross to the said end portion.
  • a lamp of the above kind is known from GB 2060248 and is used inter alia in the USA as a motorcar headlamp.
  • one incandescent body generates a passing beam and another incandescent body generates a main beam.
  • the legs of the incandescent bodies extend in a substantially axial direction relative to the incandescent body in question. Deformation of these incandescent bodies, e.g. curvature, frequently occurs when these incandescent bodies are assembled with the current supply conductors. As a result, they are not given their predetermined position in the lamp vessel.
  • the invention has for its object to provide an electric incandescent lamp of the kind described in the opening paragraph, which, among other characteristics, is of simple construction and in which the deformation of the incandescent bodies is counteracted.
  • This object is achieved in that the second legs of the incandescent bodies and the end portions of the second current supply conductors connected to them extend mainly cross to the axis of the relevant incandescent body.
  • the incandescent bodies can be mounted without mechanical stresses in spite of minor differences in shape between the incandescent bodies of one batch.
  • the legs of the incandescent bodies may be welded to the relevant end portion of a current supply conductor, or they may be clamped by the end portion of such a conductor which has been bent back upon itself. In the latter case additional welding may take place as well.
  • the lamp has a lamp vessel 1, e.g. made of hard glass, with an axis 2, in which incandescent bodies 3, 4, having axes 5, 6, respectively, are arranged at right angles to the axis 2.
  • the incandescent bodies 3, 4 have a respective first leg 7, 9 which extends substantially in the direction of the axis of the incandescent body, and a respective second leg 8, 10.
  • the current supply conductors 11, 13; 12, 14 have end portions 15, 17; 16, 18, respectively, with which they are connected to a first leg 7, 9, which extends cross to them, and a second leg 8, 10, respectively, of an incandescent body 3, 4.
  • the second legs 8, 10 of the incandescent bodies 3, 4 and the end portions 16, 18 of the current supply conductors 12, 14 connected to them extend mainly cross to the axis 5, 6 of the relevant incandescent body 3, 4.
  • the second current supply conductors 12, 14 extend less far in the direction of the axis 2 of the lamp vessel 1 than do the first current supply conductors 11, 13. As a result, they are thermally loaded only to a small extent.
  • the first current supply conductors 11, 13 are not strongly thermally loaded owing to the fact that they face the weakly radiating end faces of the incandescent bodies 3, 4.
  • the end portions 16, 18 of the second current supply conductors 12, 14 extend in mutually opposing directions.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP19900200782 1989-04-06 1990-04-02 Lampe électrique à incandescence Withdrawn EP0391482A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893911148 DE3911148A1 (de) 1989-04-06 1989-04-06 Elektrische gluehlampe mit zwei parallel angeordneten gluehwendeln
DE3911148 1989-04-06

Publications (2)

Publication Number Publication Date
EP0391482A2 true EP0391482A2 (fr) 1990-10-10
EP0391482A3 EP0391482A3 (fr) 1991-06-05

Family

ID=6377998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900200782 Withdrawn EP0391482A3 (fr) 1989-04-06 1990-04-02 Lampe électrique à incandescence

Country Status (3)

Country Link
EP (1) EP0391482A3 (fr)
JP (1) JPH02288154A (fr)
DE (1) DE3911148A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462837A (en) * 1945-10-08 1949-03-01 Tung Sol Lamp Works Inc Incandescent lamp
US3310702A (en) * 1965-06-14 1967-03-21 Robert N Falge Vehicle headlamp with improved filament mounting structure
GB2060247A (en) * 1979-09-26 1981-04-29 Westinghouse Electric Corp Electric incandescent lamps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462837A (en) * 1945-10-08 1949-03-01 Tung Sol Lamp Works Inc Incandescent lamp
US3310702A (en) * 1965-06-14 1967-03-21 Robert N Falge Vehicle headlamp with improved filament mounting structure
GB2060247A (en) * 1979-09-26 1981-04-29 Westinghouse Electric Corp Electric incandescent lamps

Also Published As

Publication number Publication date
EP0391482A3 (fr) 1991-06-05
JPH02288154A (ja) 1990-11-28
DE3911148A1 (de) 1990-10-11

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Effective date: 19911206