EP1745501B1 - Filament spirale pour une lampe a incandescence et lampe a incandescence - Google Patents

Filament spirale pour une lampe a incandescence et lampe a incandescence Download PDF

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Publication number
EP1745501B1
EP1745501B1 EP05748161A EP05748161A EP1745501B1 EP 1745501 B1 EP1745501 B1 EP 1745501B1 EP 05748161 A EP05748161 A EP 05748161A EP 05748161 A EP05748161 A EP 05748161A EP 1745501 B1 EP1745501 B1 EP 1745501B1
Authority
EP
European Patent Office
Prior art keywords
incandescent
filament
lamp
lamp vessel
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.)
Expired - Lifetime
Application number
EP05748161A
Other languages
German (de)
English (en)
Other versions
EP1745501A1 (fr
Inventor
Frank Glöckler
Christoph Krieglmeyer
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 EP1745501A1 publication Critical patent/EP1745501A1/fr
Application granted granted Critical
Publication of EP1745501B1 publication Critical patent/EP1745501B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H01K1/325—Reflecting coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/38—Seals for leading-in conductors

Definitions

  • the invention relates to an incandescent lamp according to the preamble of patent claim 1.
  • the publication EP 1 255 279 A2 describes a halogen incandescent lamp whose dimension transverse to its longitudinal extent is only a maximum of 6 mm. This lamp is intended for use in a torch.
  • the incandescent filament of this halogen incandescent lamp has two filament outlets, each welded to a power supply wire.
  • JP-A-50-038975 discloses an incandescent filament for an incandescent lamp with L-shaped spiral outlets, which are arranged in a common plane, offset parallel to the winding axis.
  • the publication GAB 1,092,405 describes a manufacturing method for an incandescent filament, which has two angled Wendelab réelle extending in an axis outside the winding axis.
  • the patent US 5,187,405 discloses an incandescent lamp with two incandescent filaments whose spiral outlets formed angled and arranged in a plane parallel offset from the winding axis of the incandescent filaments.
  • the two spiral outlets of the filament of the incandescent lamp according to the invention each have an angled leg, which are arranged in a common, parallel to the winding axis of the filament extending plane.
  • the two filament outlets of the incandescent filament of the incandescent lamp according to the invention are each preferably L-shaped. That is, each spiral outlet is only once, and at right angles angled.
  • a first L-leg of each helical departure is connected to the responsible for the light emission portion of the filament, while a second L-leg thereof is bent at right angles, so that these second L-legs of the two Wendelab réelle in a common, offset parallel to the winding axis the filament extending plane are arranged.
  • the invention is particularly well suited for use in halogen incandescent lamps which, for the purpose of a directed light emission, have an axially symmetrical lamp vessel provided with a light-reflecting coating and an axially aligned filament arranged parallel to the lamp vessel axis.
  • the incandescent lamp according to the invention has an axisymmetric, translucent lamp vessel which is sealed at one end and provided with current feedthroughs, as well as an axially aligned in the lamp vessel, offset parallel to the Lamp filament axis disposed filament, wherein the filament two Wendelab sau each with an angled leg, which are arranged in a common plane parallel to the winding axis of the filament extending plane, and wherein the angled legs each with a embedded in the sealed end of the lamp vessel power supply part are connected.
  • This ensures a reliable, off-center mounting of the filament in the lamp vessel without additional measures.
  • no complex frame structure for spiral holder is necessary
  • the power supply parts embedded in the sealed end of the lamp vessel, with which the angled legs are connected are each advantageously a metal foil, in particular a molybdenum foil, which on the one hand serve as a current supply for the incandescent filament and on the other hand are suitable for sealing the lamp vessel, since they can be sealed gastight in the sealed end of the lamp vessel.
  • the lamp vessel of the incandescent lamp according to the invention is provided with a light-reflecting coating which extends over a part of the circumference of the lamp vessel, and the incandescent filament is arranged offset parallel to the lamp vessel axis in the direction of the light-reflecting coating in order to achieve a directed light emission in a preferred solid angle.
  • Illustrated incandescent filaments 110 and 110 ' are simply coiled incandescent filaments made of tungsten wire, which are suitable for a low-voltage halogen incandescent lamp with an electrical power consumption of about 20 watts are provided.
  • These incandescent filaments 110 and 110 ' have a wound region 1101 or 1101', which is responsible for the light emission, and two uncoiled filament outlets 1102, 1103 or 1102 ', 1103' connected thereto.
  • These spiral outlets 1102, 1103 and 1102 ', 1103' each have an angled leg 11021, 11031 and 11021 ', 11031'.
  • the angled legs 11021, 11031 of the two spiral outlets 1102, 11, 03 are arranged in a common plane, which is offset parallel to the winding axis of the incandescent filament 110.
  • the two legs 11021, 11031 also run parallel to one another.
  • An analogous statement also applies to the angled legs 11021 ', 11031' of the two helical outlets 1102 ', 1103' of the incandescent filament 110 'according to the second exemplary embodiment.
  • the helical outlets 1102, 1103 and 1102 ', 1103' of the filament 110 and 110 ' are L-shaped, that is, they are angled only once at right angles.
  • a first L-leg 11022, 11032 or 11022 ', 11032' is directly connected to the area 1101 or 1101 'of the incandescent filament 110 or 110' responsible for the light emission, while the second L-leg 11021, 11031 or 11021 ', 11031' is angled at right angles from the respective first L-leg.
  • the second L-limbs 11021, 11031 of the two helical outlets of the incandescent filament 110 are each provided with a molybdenum foil 123, 124 embedded in the sealed end 101 of the lamp vessel 100 in the FIGS. 3 and 4 welded halogen bulb.
  • An analogous statement also applies to the L-limbs 11021 ', 11031' of the helical outlets of the incandescent filament 110 'according to the second exemplary embodiment, if this is used instead of the incandescent filament 110 in the lamp.
  • the incandescent filaments 110, 110 'each have an outer diameter of 2.27 mm and their responsible for the light emission Gewickel has a length of 4.19 mm. These filaments are designed for a nominal voltage of 12 volts and an electrical output of 20 watts.
  • the light bulb according to the invention is a halogen incandescent lamp with an electrical power consumption of about 20 watts.
  • This lamp has a lamp vessel 100 made of quartz glass, which is closed gas-tight at one end by means of a pinch seal 101.
  • the lamp vessel 100 further has a circular-cylindrical vessel section 102 and a pump stalk extension 103 arranged diametrically to the pinch seal 101.
  • Within the lamp vessel 100 is an incandescent filament 110 according to FIG. 1 arranged.
  • the angled limbs 11021, 11031 of their two spiral outlets are each connected to a molybdenum foil 123, 124 embedded in the pinch seal 101 gas-tight.
  • the molybdenum foils 123, 124 are each connected to a protruding from the pinch seal 101 pin 125, 126 of the halogen incandescent lamp.
  • the circular-cylindrical vessel section 102 is provided with a light-reflecting coating 104 on its outer surface.
  • the coating 104 extends over 50 percent of the circumference of the circular-cylindrical vessel portion 102 and extends to the exhaust nozzle extension 103. In other words, the coating 104 covers a half-shell of the cylindrical lamp vessel portion 102 and is continued up to the exhaust nozzle extension 103.
  • the coating 104 consists of a first light-reflecting silver layer applied directly on the surface of the lamp vessel, a second opaque chromium layer applied thereto and a third SiO 2 protective layer arranged on the chromium layer.
  • the filament 110 is axially aligned and arranged offset parallel to the cylinder axis AA of the circular cylindrical vessel portion 102.
  • the outer diameter of the lamp vessel 100 is 9.5 mm and its wall thickness 1 mm.
  • the axis 1104 of the incandescent filament 110 which is identical to its winding axis, is displaced in parallel by 2 mm relative to the cylinder axis AA in the direction of the coating 104.
  • the two angled legs 11021 and 11031 of the spiral outlets of the incandescent filament 110 are welded to the molybdenum foil 123 or 124.
  • the two are angled Leg 11021 and 11031 in a common plane, ie in the plane of the molybdenum foils 123, 124, which also contains the cylinder axis AA, arranged and parallel to each other.
  • the axis, that is, the winding axis 1104 of the filament 110 is outside the aforementioned plane, arranged offset by 2 mm parallel to the cylinder axis AA.
  • the winding axis 1104 of the incandescent filament 110 extends approximately 2 mm below the plane defined by the angled legs 11021 and 11031.
  • the pinch seal 101 is disposed in a G4 socket (not shown).
  • the invention is not limited to the above-described embodiments of the invention.
  • a so-called cold-light mirror which is transparent to infrared radiation and reflects electromagnetic radiation from the visible spectral range.
  • the two angled L-legs 11021, 11031 arranged in a common plane do not necessarily have to run parallel to one another, but their spacing may increase, for example, in the direction of the molybdenum foils 123, 124.
  • the invention can also be applied to incandescent lamps and filaments of power levels other than 20 watts.

Landscapes

  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Endoscopes (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (2)

  1. Lampe à incandescence, comprenant une enceinte ( 100 ) de lampe perméable à la lumière, à symétrie axiale, étanche à une extrémité ( 101 ) et dotée de traversées ( 123, 124, 125, 126 ) de courant et un filament ( 110 ) incandescent, disposé à l'intérieur de l'enceinte ( 100 ) de la lampe, dirigé axialement dans l'enceinte ( 100 ) de la lampe et décalé parallèlement par rapport à l'axe ( A-A ) de l'enceinte de la lampe, les sorties ( 1102, 1103 ) du filament ( 110 ) incandescent ayant respectivement une branche ( 11021, 11031 ) coudée, qui sont disposées dans un plan commun décalé parallèlement à l'axe ( 1104 ) d'enroulement du filament ( 110 ) incandescent et reliées, respectivement, à une partie ( 123, 124 ) d'entrée de courant incorporée dans l'extrémité ( 101 ) rendue étanche de l'enceinte ( 100 ) de la lampe,
    caractérisée en ce que l'enceinte ( 100 ) de la lampe est munie d'un revêtement ( 104 ) réfléchissant la lumière et s'étendant sur une partie du pourtour de l'enceinte ( 100 ) de la lampe, le filament ( 110 ) incandescent étant, dans la direction du revêtement ( 104 ) réfléchissant la lumière, décalé parallèlement à l'axe ( A-A ) de l'enceinte de la lampe.
  2. Lampe à incandescence suivant la revendication 1, caractérisée en ce que la partie ( 123, 124 ) d'entrée de courant est, respectivement, un ruban métallique incorporé d'une manière étanche au gaz dans l'extrémité ( 101 ) de l'enceinte de la lampe qui est rendue étanche.
EP05748161A 2004-05-12 2005-05-02 Filament spirale pour une lampe a incandescence et lampe a incandescence Expired - Lifetime EP1745501B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004023935A DE102004023935A1 (de) 2004-05-12 2004-05-12 Glühwendel für eine Glühlampe und Glühlampe
PCT/DE2005/000808 WO2005112075A1 (fr) 2004-05-12 2005-05-02 Filament spirale pour une lampe a incandescence et lampe a incandescence

Publications (2)

Publication Number Publication Date
EP1745501A1 EP1745501A1 (fr) 2007-01-24
EP1745501B1 true EP1745501B1 (fr) 2008-09-10

Family

ID=34978951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05748161A Expired - Lifetime EP1745501B1 (fr) 2004-05-12 2005-05-02 Filament spirale pour une lampe a incandescence et lampe a incandescence

Country Status (8)

Country Link
US (1) US20080001522A1 (fr)
EP (1) EP1745501B1 (fr)
JP (1) JP2007536716A (fr)
CN (1) CN1954405B (fr)
AT (1) ATE408239T1 (fr)
CA (1) CA2562854A1 (fr)
DE (2) DE102004023935A1 (fr)
WO (1) WO2005112075A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008026369A1 (de) 2008-06-02 2009-12-03 Osram Gesellschaft mit beschränkter Haftung Glühlampe
CN102089854B (zh) * 2008-07-07 2014-06-25 皇家飞利浦电子股份有限公司 灯
DE102008054287A1 (de) * 2008-11-03 2010-05-06 Osram Gesellschaft mit beschränkter Haftung Halogenglühlampe für den Betrieb an Netzspannung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048200A (en) * 1958-03-12 1962-08-07 Westinghouse Electric Corp Process of treating coiled articles
NL6404941A (fr) * 1964-05-05 1965-11-08
GB1092405A (en) * 1964-10-01 1967-11-22 Gen Telephone And Electronic L Method of making lamp filaments
DE1589151A1 (de) * 1966-12-19 1970-03-19 Egyesuelt Izzolampa Gespiegelte Gluehlampe mit Doppelkolben und Halogengasfuellung
US3548244A (en) * 1968-07-01 1970-12-15 British Lighting Ind Ltd Lamp having twin filaments and integral filament legs mounted in a bridge
JPS5038975A (fr) * 1973-08-14 1975-04-10
NL7602483A (nl) * 1976-03-10 1977-09-13 Philips Nv Spiegelkondensorlamp.
US4227113A (en) * 1978-10-18 1980-10-07 Duro-Test Corporation Incandescent electric lamp with partial light transmitting coating
JPS58112241A (ja) * 1981-12-25 1983-07-04 株式会社東芝 マウントの製造方法
US5187405A (en) * 1991-02-21 1993-02-16 General Electric Company Double filament incandescent lamp
DE4420607A1 (de) * 1994-06-13 1995-12-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe und Leuchtkörper für Glühlampen
DE19707245A1 (de) * 1997-02-25 1998-08-27 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur Herstellung einer elektrischen Glühlampe

Also Published As

Publication number Publication date
DE102004023935A1 (de) 2005-12-08
CN1954405A (zh) 2007-04-25
ATE408239T1 (de) 2008-09-15
EP1745501A1 (fr) 2007-01-24
DE502005005335D1 (de) 2008-10-23
CA2562854A1 (fr) 2005-11-24
WO2005112075A1 (fr) 2005-11-24
US20080001522A1 (en) 2008-01-03
CN1954405B (zh) 2010-05-05
JP2007536716A (ja) 2007-12-13

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