EP1527477B1 - Lampe electrique a incandescence - Google Patents

Lampe electrique a incandescence Download PDF

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Publication number
EP1527477B1
EP1527477B1 EP03792120A EP03792120A EP1527477B1 EP 1527477 B1 EP1527477 B1 EP 1527477B1 EP 03792120 A EP03792120 A EP 03792120A EP 03792120 A EP03792120 A EP 03792120A EP 1527477 B1 EP1527477 B1 EP 1527477B1
Authority
EP
European Patent Office
Prior art keywords
filament
incandescent
sleeve
lamp vessel
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
EP03792120A
Other languages
German (de)
English (en)
Other versions
EP1527477A1 (fr
Inventor
Axel Bunk
Andreas Nittke
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 EP1527477A1 publication Critical patent/EP1527477A1/fr
Application granted granted Critical
Publication of EP1527477B1 publication Critical patent/EP1527477B1/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
    • H01K1/26—Screens; Filters

Definitions

  • the invention relates to an electric incandescent lamp according to the preamble of patent claim 1.
  • a halogen incandescent lamp in particular a low-voltage halogen incandescent lamp, with a rotationally symmetrical lamp vessel and an incandescent filament disposed axially therein.
  • the lamp vessel carries an interference filter, which reflects the infrared radiation emitted by the incandescent filament back to the incandescent filament.
  • the patent US 6,225,731 discloses a halogen incandescent lamp with an axisymmetric lamp vessel in which an incandescent filament is arranged axially.
  • the incandescent filament is surrounded by a light-transmissive and ellipsoidal-shaped envelope, which is arranged inside the lamp vessel and which carries an infrared-ray-reflecting interference filter and is open at both ends.
  • EP 0 446 460 A2 describes, for example, a high-voltage halogen incandescent lamp with a filament that has a V-shaped or U-shaped design and that has a plurality of luminous filament sections arranged outside the lamp vessel axis.
  • the electric incandescent lamp according to the invention has a substantially axially symmetrical lamp vessel, at least one incandescent filament arranged therein, which has at least one filament section arranged outside the filament vessel axis, and power supply lines for the at least one incandescent filament.
  • the at least one helix section is arranged axially in a light-permeable cylindrical shell, which is provided with an infrared ray-reflecting interference filter.
  • the interference filter mounted on the translucent cylindrical shell By means of the interference filter mounted on the translucent cylindrical shell, the infrared radiation emitted by the enveloped helix section is reflected back onto this helix section and utilized for its heating. According to this heating caused by the infrared radiation, the electrical energy for the filament can be reduced and thus the luminous efficacy can be increased.
  • the invention thus enables an increase in the light output, regardless of the shape of the lamp vessel and the orientation of the filament within the lamp vessel.
  • the translucent cylindrical shell is advantageously formed as a circular cylindrical tube for manufacturing reasons.
  • This tube can be provided before its installation with the interference filter and, for example, after Welding the power supply lines with the filament are threaded onto the at least one luminous filament section.
  • the circular cylindrical shape of the shell further favors the focusing of the reflected infrared radiation from the interference filter on the arranged in the cylinder axis coil section.
  • the interference filter can be applied in an advantageous manner as a coating on the outer or inner circumferential surface of the tube. Because of its proximity to the incandescent filament, the casing is exposed to very high temperatures and therefore preferably consists of hard glass or quartz glass.
  • the shell can best be fixed to the lamp vessel or to the incandescent filament.
  • the fixation of the shell on the lamp vessel can be realized particularly advantageously by means of a fusion connection with the lamp vessel.
  • one end of the shell is sealed in a sealed end of the lamp vessel or inwardly directed nubs are fused in the wall of the lamp vessel with the shell.
  • the fixation of the casing on the incandescent filament can be realized particularly advantageously by means of at least one crushing of the casing, which is arranged above a non-luminous section of the incandescent filament and connected thereto.
  • the invention can be applied to a halogen incandescent lamp having an axially symmetrical lamp vessel and a U-shaped or V-shaped filament disposed therein, whose U-legs or V-legs each have at least one luminous filament section.
  • a halogen incandescent lamp having an axially symmetrical lamp vessel and a U-shaped or V-shaped filament disposed therein, whose U-legs or V-legs each have at least one luminous filament section.
  • a equipped with an infrared rays interference filter equipped, translucent cylindrical shell is provided in which the luminous filament sections of the respective U-leg or V-leg are arranged axially.
  • the above translucent cylindrical casings reflect the infrared radiation generated by the luminous filament sections back to the respective filament sections and thereby contribute, as already explained above, to an increase in the luminous efficacy of the lamp.
  • the first embodiment is shown schematically.
  • This lamp has a quartz glass or hard glass existing lamp vessel 1, which is formed axially symmetrical with respect to its longitudinal axis A-A.
  • the lamp vessel 1 is closed at one end by means of a pinch seal 10.
  • a sealed pump neck 11 At the opposite end of the lamp vessel 1 is a sealed pump neck 11.
  • a U-shaped filament 2 is arranged within the lamp vessel 1, .
  • the two ends 20, 21 of the filament 2 are each connected to a molybdenum foil 3, 4, which are sealed gastight in the pinch seal 10.
  • From the pinch seal 10 protrude two power supply wires 5, 6, which are each electrically connected to a molybdenum foil 3, 4.
  • the two U-limbs of the incandescent filament 2 each have a filament section 22, 23 which illuminates during lamp operation. These two filament sections 22, 23 are connected by a curved, non-luminous portion 24 of the filament 2 with each other.
  • two circular-cylindrical quartz glass tubes 7, 8 are arranged, which carry on their outer surface an infrared ray-reflecting interference filter 71, 81 and each enclose the luminous coil portion 22, 23 of a U-leg of the filament 2 without contact.
  • the helical sections 22, 23 are arranged axially in the quartz glass tubes 7, 8 and extend approximately parallel to the lamp vessel axis AA.
  • the inner diameter of the quartz glass tubes 7, 8 is chosen sufficiently large that the halogen cycle process is not affected by them.
  • the outer diameter of the quartz glass tubes 7, 8 is smaller than the inner radius of the rotationally symmetrical part of the lamp vessel 1.
  • the ends of the quartz glass tubes 7 and 8 are each by means of a pinch 72 and 82 at the non-luminous portions 20, 21, 24 of the filament. 2 attached.
  • the abovementioned bruises are not gas-tight in order to allow gas exchange with the interior of the lamp vessel and not to impair the halogen cycle process.
  • the quartz glass tubes 7, 8 are fused for further mechanical stabilization in each case with one end 72, 82 in the pinch seal 10 of the lamp vessel 1.
  • the filament 2 is held in the wall of the lamp vessel 1 by means of two diametrically arranged funnel-like depressions 14, 15 formed from the material of the lamp vessel 1.
  • the non-luminous portion 24 of the filament is disposed between the two recesses 14, 15 and fixed in this area on the wall of the lamp vessel 1 by a fusion bond.
  • This technique of incandescent filament mounting is described, for example, in the published patent application EP 0 446 460 A2.
  • the second embodiment shown schematically in Figures 3 and 4 differs from the first embodiment described in more detail only by the quartz glass tubes 7, 8, which are fixed in other ways than the quartz glass tubes 7. 8 according to the first embodiment in the lamp vessel 1. In all other details, both embodiments are the same. Therefore, the same reference numerals have been used in the figures of the two embodiments for identical parts.
  • the quartz glass tubes 7, 8 provided with interference filters 71, 81 rest on the inner wall of the lamp vessel 1 and are respectively fused with one end 72, 82 in the pinch seal 10 of the lamp vessel 1.
  • the two quartz glass tubes 7, 8 are fixed in the wall of the lamp vessel 1 on the lamp vessel 1 by means of two diametrically arranged, funnel-shaped depressions 12, 13 extending into the interior of the lamp vessel 1.
  • the funnel-like depressions 12, 13 in the wall of the gas-tightly closed Lampengeflißes 1 engage like a wedge in the space between the two quartz glass tubes 7 and 8.
  • the quartz glass tubes 7, 8 By means of the formed from the material of the lamp vessel 1 funnel-like depressions 12, 13, the quartz glass tubes 7, 8 before the manufacture of the pinch seal 10 attached to the lamp vessel 1.
  • the quartz glass tubes 7, 8 form in the region of the recesses 12, 13 with the wall of the lamp vessel 1 a fusion bond.
  • the over the non-luminous portions of the filament squeezed ends of the quartz glass tubes may also be closed gas-tight and be arranged in the interior of the quartz glass tubes a halogen filling, while in the interior of the lamp vessel no gas filling or only a gas filling is arranged without addition of halogen.
  • the interference filters 71, 81 are protected against chemical attack of the halogen additive.
  • the invention is also applicable to ordinary incandescent lamps without halogen additives.
  • each U leg or V leg of the incandescent filament can have a plurality of luminous filament sections, which are connected to one another by non-luminous sections of the incandescent filament 2 and are likewise aligned axially in the quartz glass tube.
  • the non-luminous sections of the incandescent filament can also be equipped with spacers for centering the luminous filament sections in the quartz glass tubes.
  • spacer for example, a spiral tungsten charge is suitable, whose diameter is matched to the inner diameter of the quartz glass tubes and which is attached to the non-luminous portion of the filament, or inwardly directed nubs in the wall of the quartz glass tubes.
  • the quartz glass tubes can also be fixed in the lamp vessel by means of a frame-like metal frame.
  • the present invention can also be applied to incandescent lamps which have a filament aligned transversely to the axis of symmetry or the longitudinal axis of the lamp vessel.
  • the incandescent filament is enveloped, for example, by a quartz glass tube which carries on its outer circumferential surface an infrared ray-reflecting interference filter. The ends of this quartz glass tube are attached, for example, to the power supply wires of the filament or to a separate metal frame.
  • Another possibility for fixing the quartz glass tube is to fasten the quartz glass tube to the incandescent filament by means of spiral spacers whose diameter is matched to the inner diameter of the quartz glass tube and which are fixed on the incandescent filament.
  • quartz glass tubes it is also possible to use hard glass tubes, for example borosilicate glass tubes.

Landscapes

  • Resistance Heating (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (8)

  1. Lampe électrique à incandescence comprenant
    - une enceinte (1) de lampe sensiblement de symétrie axiale ;
    - au moins un filament (2) incandescent disposé dans l'enceinte (1) de lampe, qui a au moins un tronçon (22, 23) de filament disposé à l'extérieur de l'axe A-A de l'enceinte de lampe ;
    - des entrées (3, 4, 5, 6) de courant pour le au moins un filament (2) incandescent ;
    - le au moins un tronçon (22, 23) de filament étant disposé dans une douille (7, 8) cylindrique transparente, dans laquelle
    - la douille (7, 8) cylindrique transparente est munie d'un filtre (71, 81) interférentiel réfléchissant le rayonnement infrarouge ;
    caractérisée en ce que
    - la douille (7, 8) cylindrique transparente est immobilisée sur le au moins un filament (2) incandescent et/ou bien une extrémité (72, 82) de la douille (7, 8) cylindrique transparente est scellée dans une extrémité (10) rendue étanche de l'enceinte (1) de lampe.
  2. Lampe électrique à incandescence suivant la revendication 1, caractérisée en ce que la douille est constituée d'un tube (7, 8) cylindrique de section circulaire.
  3. Lampe électrique à incandescence suivant la revendication 1 ou 2, caractérisée en ce que le filtre interférentiel est constitué sous la forme d'un revêtement (71, 81) réfléchissant le rayonnement infrarouge et disposé sur la douille (7, 8).
  4. Lampe électrique à incandescence suivant la revendication 1 ou 2, caractérisée en ce que la douille (7, 8) est en verre au quartz.
  5. Lampe électrique à incandescence suivant la revendication 1, caractérisée en ce que la douille (7, 8) est scellée à l'enceinte (1) de lampe par des bossages (12, 13) dirigés vers l'intérieur qui sont disposés sur la paroi de l'enceinte (1) de lampe.
  6. Lampe électrique à incandescence suivant la revendication 1, caractérisée en ce que la douille est immobilisée à l'aide d'au moins un pincement (72, 82) sur au moins un tronçon (20, 21, 24) non éclairant du filament (2) incandescent.
  7. Lampe électrique à incandescence suivant la revendication 1, caractérisée en ce que la douille (7, 8) est fixée au filament (2) incandescent au moyen d'entretoises en forme de spirale, dont le diamètre est adapté au diamètre intérieur de la douille (7, 8) et qui sont immobilisées sur le filament (2) incandescent.
  8. Lampe électrique à incandescence suivant la revendication 1, caractérisée en ce que le filament (2) incandescent est sensiblement en forme de U ou en forme de V et chaque branche du U ou du V du filament (2) incandescent a au moins un tronçon (22, 23) de filament, qui est disposé axialement dans une douille (7, 8) cylindrique transparente qui est munie d'un filtre (71, 81) interférentiel réfléchissant le rayonnement infrarouge.
EP03792120A 2002-08-08 2003-07-04 Lampe electrique a incandescence Expired - Lifetime EP1527477B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10236549A DE10236549A1 (de) 2002-08-08 2002-08-08 Elektrische Glühlampe
DE10236549 2002-08-08
PCT/DE2003/002248 WO2004019371A1 (fr) 2002-08-08 2003-07-04 Lampe electrique a incandescence

Publications (2)

Publication Number Publication Date
EP1527477A1 EP1527477A1 (fr) 2005-05-04
EP1527477B1 true EP1527477B1 (fr) 2006-05-24

Family

ID=31196953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03792120A Expired - Lifetime EP1527477B1 (fr) 2002-08-08 2003-07-04 Lampe electrique a incandescence

Country Status (7)

Country Link
US (1) US7242138B2 (fr)
EP (1) EP1527477B1 (fr)
JP (1) JP4597674B2 (fr)
CN (1) CN100474500C (fr)
AT (1) ATE327571T1 (fr)
DE (2) DE10236549A1 (fr)
WO (1) WO2004019371A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005019113A1 (de) * 2005-04-25 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogenglühlampe und Verfahren zu ihrer Herstellung
DE102005046204A1 (de) * 2005-09-27 2007-03-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe und Verfahren zur Herstellung einer derartigen Lampe
WO2008004540A1 (fr) * 2006-07-03 2008-01-10 Panasonic Corporation Ampoule, ampoule avec réflecteur et dispositif d'éclairage
JP2008016206A (ja) * 2006-07-03 2008-01-24 Matsushita Electric Ind Co Ltd 管球、反射鏡付き管球、および照明装置
WO2008050253A2 (fr) 2006-10-24 2008-05-02 Philips Intellectual Property & Standards Gmbh Lampe électrique à incandescence comprenant un réseau de filaments et un revêtement anti-infrarouge
WO2008116493A1 (fr) * 2007-03-23 2008-10-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence à filament spiralé présentant une extrémité enveloppée
EP2081215B1 (fr) 2008-01-17 2011-12-14 Flowil International Lighting (HOLDING) B.V. Capsule d'alignement de filament pour lampe électrique
DE202008000664U1 (de) 2008-01-17 2008-06-19 Flowil International Lighting (Holding) B.V. Glühfadenausfluchtungskapsel für eine elektrische Lampe
DE202009008919U1 (de) 2009-06-29 2009-09-10 Osram Gesellschaft mit beschränkter Haftung Halogenglühlampe
DE202009012809U1 (de) 2009-09-22 2009-12-31 Osram Gesellschaft mit beschränkter Haftung Halogenglühlampe

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB977907A (en) * 1961-10-13 1964-12-16 Gen Electric Co Ltd Improvements in or relating to articles of fused silica
US3188513A (en) * 1963-04-10 1965-06-08 Gen Electric Optical filters and lamps embodying the same
NL7405071A (nl) * 1974-04-16 1975-10-20 Philips Nv Gloeilamp met infrarood filter.
US4517491A (en) 1983-08-01 1985-05-14 General Electric Company Incandescent lamp source utilizing an integral cylindrical transparent heat mirror
DE4008367A1 (de) * 1990-03-15 1991-09-26 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einseitig gequetschte halogengluehlampe
US5146134A (en) 1990-03-15 1992-09-08 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. Halogen incandescent lamp, particularly for operation from power networks, and method of its manufacture
US5670840A (en) * 1992-11-12 1997-09-23 Lanese; Gustino J. Tungsten-halogen incandescent lamp with reduced risk of containment failure
EP0616359B1 (fr) * 1993-03-19 1996-07-03 Koninklijke Philips Electronics N.V. Lampe électrique à incandescence
DE4420607A1 (de) 1994-06-13 1995-12-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe und Leuchtkörper für Glühlampen
DE29612757U1 (de) * 1996-07-24 1997-11-20 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Einseitig verschlossene elektrische Glühlampe
US6225731B1 (en) 1997-10-10 2001-05-01 General Electric Company Glass halogen lamp with internal ellipsoidal shroud

Also Published As

Publication number Publication date
CN1675741A (zh) 2005-09-28
US20050242733A1 (en) 2005-11-03
JP2005535101A (ja) 2005-11-17
EP1527477A1 (fr) 2005-05-04
JP4597674B2 (ja) 2010-12-15
DE10236549A1 (de) 2004-03-04
ATE327571T1 (de) 2006-06-15
CN100474500C (zh) 2009-04-01
US7242138B2 (en) 2007-07-10
WO2004019371A1 (fr) 2004-03-04
DE50303497D1 (de) 2006-06-29

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