WO2004019371A1 - Elektrische glühlampe - Google Patents
Elektrische glühlampe Download PDFInfo
- Publication number
- WO2004019371A1 WO2004019371A1 PCT/DE2003/002248 DE0302248W WO2004019371A1 WO 2004019371 A1 WO2004019371 A1 WO 2004019371A1 DE 0302248 W DE0302248 W DE 0302248W WO 2004019371 A1 WO2004019371 A1 WO 2004019371A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filament
- lamp vessel
- envelope
- incandescent
- lamp
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
Definitions
- the invention relates to an electric light bulb 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 arranged therein.
- the lamp vessel carries an interference filter which reflects the infrared radiation emitted by the incandescent filament back onto the incandescent filament.
- the US Pat. No. 6,225,731 discloses a halogen incandescent lamp with an axially symmetrical lamp vessel in which a filament is arranged axially.
- the incandescent filament is surrounded by a translucent and ellipsoid-shaped envelope arranged inside the lamp vessel, which carries an interference filter reflecting infrared rays and is open at both ends.
- the electric incandescent lamp according to the invention has an essentially axially symmetrical lamp vessel, at least one incandescent filament arranged therein, which has at least one filament section arranged outside the lamp vessel axis, and power supply lines for the at least one incandescent filament.
- the at least one helical section is arranged axially in a translucent cylindrical sleeve which is provided with an interference filter reflecting infrared rays.
- the interference filter attached to the translucent cylindrical sheath By means of the interference filter attached to the translucent cylindrical sheath, the infrared radiation emitted by the covered helical section is reflected back onto this helical section and used to heat it up. Corresponding to this heating caused by the infrared radiation, the electrical energy for the incandescent filament can be reduced and thus the luminous efficiency can be increased. In this way, the invention enables the luminous efficiency to be increased independently of the shape of the lamp vessel and the orientation of the incandescent 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 with the interference filter before it is installed and, for example, after Welding the power supplies with the filament are threaded onto the at least one luminous filament section.
- the circular cylindrical shape of the sheath also favors the focusing of the infrared radiation reflected by the interference filter onto the spiral section arranged in the cylinder axis.
- the interference filter can advantageously be applied as a coating on the outer or inner lateral surface of the tube. Because of its proximity to the incandescent filament, the envelope is exposed to very high temperatures and is therefore preferably made of tempered glass or quartz glass.
- the sheath can best be fixed to the lamp vessel or to the incandescent filament.
- the sheath can be fixed to the lamp vessel particularly advantageously by means of a fusion connection with the lamp vessel.
- one end of the envelope is preferably melted into a sealed end of the lamp vessel, or inwardly directed knobs in the wall of the lamp vessel are fused to the envelope.
- the sheath can be fixed to the incandescent filament particularly advantageously by means of at least one pinch of the sheath, which is arranged over a non-illuminating section of the incandescent filament and connected to it.
- the invention can be used particularly advantageously in the case of a halogen incandescent lamp with an axially symmetrical lamp vessel and a U-shaped or V-shaped incandescent filament arranged therein, the U-legs or N-legs of which each have at least one luminous filament section.
- a translucent cylindrical sheath is provided, which is provided with an infrared filter reflecting interference filter and in which the luminous filament sections of the respective U-leg or V-leg are axially arranged.
- the aforementioned translucent cylindrical shells reflect the infrared radiation generated by the luminous filament sections back onto the respective filament sections and, as already explained above, thereby contribute to increasing the luminous efficacy of the lamp. i ⁇ . Description of the preferred embodiments
- Figure 1 is a side view according to the first embodiment of the invention in a schematic representation
- Figure 2 The embodiment of the invention shown in Figure 1 in a side view rotated by 90 degrees compared to Figure 1 in a schematic representation
- Figure 3 is a side view according to the second embodiment of the invention in a schematic representation
- Figure 4 The exemplary embodiment of the invention shown in Figure 3 in a side view rotated by 90 degrees compared to Figure 3 in a schematic representation
- All of the exemplary embodiments of the invention are high-voltage halogen incandescent lamps which are provided directly, that is to say without the upstream connection of a voltage converter, for operation on an AC line voltage.
- the first exemplary embodiment is shown schematically in FIGS. 1 and 2.
- This lamp has a lamp vessel 1 made of quartz glass or hard glass, which is 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 U-shaped filament 2 is arranged inside the lamp vessel 1.
- the two ends 20, 21 of the incandescent filament 2 are each connected to a molybdenum foil 3, 4, which are sealed in the pinch seal 10 in a gas-tight manner.
- Two power supply wires 5, 6 protrude from the pinch seal 10, each of which is electrically conductively connected to a molybdenum foil 3, 4.
- the two U-legs of the incandescent filament 2 each have a filament section 22, 23 that lights up during lamp operation. These two filament sections 22, 23 are connected to one another by a curved, non-luminous section 24 of the incandescent filament 2.
- a curved, non-luminous section 24 of the incandescent filament 2 Arranged within the lamp vessel 1 are two circular-cylindrical quartz glass tubes 7, 8 which carry an interference filter 71, 81 reflecting infrared rays on their outer circumferential surface and each enclose the luminous coil section 22, 23 of a U-leg of the filament 2 without contact.
- the filament sections 22, 23 are arranged axially in the quartz glass tubes 7, 8 and run approximately parallel to the lamp vessel axis AA.
- the inside diameter of the quartz glass tubes 7, 8 is selected to be sufficiently large that the halogen cycle process is not impaired 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 squeezed 72, 73 and 82, 83 on the non-luminous sections 20, 21, 24 of the filament 2 attached.
- the above-mentioned bruises are not designed to be gas-tight in order to enable gas exchange with the interior of the lamp vessel and not to impair the halogen cycle process.
- the quartz glass tubes 7, 8 are each melted with one end 72, 82 in the pinch seal 10 of the lamp vessel 1 for further mechanical stabilization.
- the incandescent filament 2 is held in the wall of the lamp vessel 1 with the aid of two diametrically arranged funnel-like depressions 14, 15 formed from the material of the lamp vessel 1.
- the non-luminous section 24 of the incandescent filament is arranged between the two depressions 14, 15 and fixed in this area to the wall of the lamp vessel 1 by means of a fusion connection.
- This technique of the incandescent filament holder is described for example in the published patent application EP 0 446460 A2.
- the second exemplary embodiment shown schematically in FIGS. 3 and 4 differs from the first exemplary embodiment described in more detail above only by the quartz glass tubes 7 ′, 8 ′, which are fixed in the lamp vessel 1 in a different way than the quartz glass tubes 7, 8 according to the first exemplary embodiment.
- the two exemplary embodiments are the same in all other details. Therefore, the same reference numerals have been used in the figures of the two exemplary embodiments for identical parts.
- the quartz glass tubes 7 ', 8' provided with interference filters IV, 81 ' lie on the inner wall of the lamp vessel
- the two quartz glass tubes 7 ', 8' are fixed in the wall of the lamp vessel 1 on the lamp vessel 1 with the aid 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-tight lamp vessel 1 engage like a wedge in the space between the two quartz glass tubes 7 'and 8'.
- the ends of the quartz glass tubes squeezed over the non-illuminating sections of the incandescent filament can also be sealed gas-tight and a halogen filling can be arranged in the interior of the quartz glass tubes, while no gas filling or only a gas filling without halogen addition is arranged in the interior of the lamp vessel.
- a halogen filling can be arranged in the interior of the quartz glass tubes, while no gas filling or only a gas filling without halogen addition is arranged in the interior of the lamp vessel.
- the invention can also be applied to ordinary incandescent lamps without halogen additions.
- each U-leg or V-leg of the incandescent filament can have a plurality of luminous filament sections which are caused by non-luminous sections of the filament
- the non-luminous sections of the filament can also be equipped with spacers for centering the luminous filament sections in the quartz glass tubes.
- a spacer is, for example, a spiral winding made of tungsten, the diameter of which is matched to the inside diameter of the quartz glass tubes and which is fastened to the non-illuminating section of the filament, or inwardly directed knobs in the wall of the quartz glass pipes.
- the quartz glass tubes can also be fixed in the lamp vessel with the help of a frame-like metal frame.
- the present invention can also be applied to incandescent lamps which have an incandescent filament oriented transversely to the axis of symmetry or the longitudinal axis of the lamp vessel.
- the incandescent filament is encased, for example, by a quartz glass tube which carries an interference filter reflecting infrared rays on its outer surface. 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 of fastening the quartz glass tube is to fasten the quartz glass tube to the glow coil by means of spiral-shaped spacers, the diameter of which is adapted to the inside diameter of the quartz glass tube and which are fixed on the filament.
- Tempered glass tubes for example borosilicate glass tubes, can also be used instead of quartz glass tubes.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50303497T DE50303497D1 (de) | 2002-08-08 | 2003-07-04 | Elektrische glühlampe |
EP03792120A EP1527477B1 (de) | 2002-08-08 | 2003-07-04 | Elektrische glühlampe |
US10/521,403 US7242138B2 (en) | 2002-08-08 | 2003-07-04 | Electric light bulb |
JP2004529703A JP4597674B2 (ja) | 2002-08-08 | 2003-07-04 | 電気白熱ランプ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10236549.0 | 2002-08-08 | ||
DE10236549A DE10236549A1 (de) | 2002-08-08 | 2002-08-08 | Elektrische Glühlampe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004019371A1 true WO2004019371A1 (de) | 2004-03-04 |
Family
ID=31196953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/002248 WO2004019371A1 (de) | 2002-08-08 | 2003-07-04 | Elektrische glühlampe |
Country Status (7)
Country | Link |
---|---|
US (1) | US7242138B2 (de) |
EP (1) | EP1527477B1 (de) |
JP (1) | JP4597674B2 (de) |
CN (1) | CN100474500C (de) |
AT (1) | ATE327571T1 (de) |
DE (2) | DE10236549A1 (de) |
WO (1) | WO2004019371A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1739725A2 (de) * | 2005-04-25 | 2007-01-03 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Halogenglühlampe und Verfahren zu ihrer Herstellung |
WO2008004540A1 (fr) * | 2006-07-03 | 2008-01-10 | Panasonic Corporation | Ampoule, ampoule avec réflecteur et dispositif d'éclairage |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005046204A1 (de) * | 2005-09-27 | 2007-03-29 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lampe und Verfahren zur Herstellung einer derartigen Lampe |
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 (en) | 2006-10-24 | 2008-05-02 | Philips Intellectual Property & Standards Gmbh | Electric incandescent lamp with filament array and infrared reflective coating |
WO2008116493A1 (de) * | 2007-03-23 | 2008-10-02 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Glühlampe mit ummanteltem ende der glühwendel |
EP2081215B1 (de) | 2008-01-17 | 2011-12-14 | Flowil International Lighting (HOLDING) B.V. | Filamentausrichtungskapsel für eine elektrische Lampe |
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4517491A (en) * | 1983-08-01 | 1985-05-14 | General Electric Company | Incandescent lamp source utilizing an integral cylindrical transparent heat mirror |
EP0446460A2 (de) * | 1990-03-15 | 1991-09-18 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Einseitig gequetschte Halogenglühlampe |
US6225731B1 (en) * | 1997-10-10 | 2001-05-01 | General Electric Company | Glass halogen lamp with internal ellipsoidal shroud |
Family Cites Families (8)
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. |
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 |
DE69400272T2 (de) * | 1993-03-19 | 1997-01-02 | Philips Electronics Nv | Elektrische Glühlampe |
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 Ges Fuer Elektrische Gluehlampen Mbh | Einseitig verschlossene elektrische Glühlampe |
-
2002
- 2002-08-08 DE DE10236549A patent/DE10236549A1/de not_active Withdrawn
-
2003
- 2003-07-04 JP JP2004529703A patent/JP4597674B2/ja not_active Expired - Fee Related
- 2003-07-04 DE DE50303497T patent/DE50303497D1/de not_active Expired - Lifetime
- 2003-07-04 WO PCT/DE2003/002248 patent/WO2004019371A1/de active IP Right Grant
- 2003-07-04 US US10/521,403 patent/US7242138B2/en not_active Expired - Fee Related
- 2003-07-04 CN CNB038192403A patent/CN100474500C/zh not_active Expired - Fee Related
- 2003-07-04 EP EP03792120A patent/EP1527477B1/de not_active Expired - Lifetime
- 2003-07-04 AT AT03792120T patent/ATE327571T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4517491A (en) * | 1983-08-01 | 1985-05-14 | General Electric Company | Incandescent lamp source utilizing an integral cylindrical transparent heat mirror |
EP0446460A2 (de) * | 1990-03-15 | 1991-09-18 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Einseitig gequetschte Halogenglühlampe |
US6225731B1 (en) * | 1997-10-10 | 2001-05-01 | General Electric Company | Glass halogen lamp with internal ellipsoidal shroud |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1739725A2 (de) * | 2005-04-25 | 2007-01-03 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Halogenglühlampe und Verfahren zu ihrer Herstellung |
EP1739725A3 (de) * | 2005-04-25 | 2011-02-23 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Halogenglühlampe und Verfahren zu ihrer Herstellung |
WO2008004540A1 (fr) * | 2006-07-03 | 2008-01-10 | Panasonic Corporation | Ampoule, ampoule avec réflecteur et dispositif d'éclairage |
Also Published As
Publication number | Publication date |
---|---|
CN100474500C (zh) | 2009-04-01 |
EP1527477A1 (de) | 2005-05-04 |
DE50303497D1 (de) | 2006-06-29 |
EP1527477B1 (de) | 2006-05-24 |
US20050242733A1 (en) | 2005-11-03 |
JP2005535101A (ja) | 2005-11-17 |
CN1675741A (zh) | 2005-09-28 |
US7242138B2 (en) | 2007-07-10 |
ATE327571T1 (de) | 2006-06-15 |
DE10236549A1 (de) | 2004-03-04 |
JP4597674B2 (ja) | 2010-12-15 |
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