EP2649637A1 - Hochdruckentladungslampe - Google Patents
HochdruckentladungslampeInfo
- Publication number
- EP2649637A1 EP2649637A1 EP11785382.0A EP11785382A EP2649637A1 EP 2649637 A1 EP2649637 A1 EP 2649637A1 EP 11785382 A EP11785382 A EP 11785382A EP 2649637 A1 EP2649637 A1 EP 2649637A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- discharge lamp
- pressure discharge
- iodide
- filling
- lamp according
- 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.)
- Granted
Links
- 150000004820 halides Chemical class 0.000 claims abstract description 30
- 229910052724 xenon Inorganic materials 0.000 claims abstract description 18
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 150000002739 metals Chemical class 0.000 claims abstract description 9
- 229910052775 Thulium Inorganic materials 0.000 claims abstract description 7
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 7
- 239000011701 zinc Substances 0.000 claims abstract description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 6
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 239000011734 sodium Substances 0.000 claims abstract description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 239000011572 manganese Substances 0.000 claims abstract description 5
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims description 53
- UAYWVJHJZHQCIE-UHFFFAOYSA-L zinc iodide Chemical compound I[Zn]I UAYWVJHJZHQCIE-UHFFFAOYSA-L 0.000 claims description 34
- 235000009518 sodium iodide Nutrition 0.000 claims description 18
- HUIHCQPFSRNMNM-UHFFFAOYSA-K scandium(3+);triiodide Chemical compound [Sc+3].[I-].[I-].[I-] HUIHCQPFSRNMNM-UHFFFAOYSA-K 0.000 claims description 17
- QWYFOIJABGVEFP-UHFFFAOYSA-L manganese(ii) iodide Chemical compound [Mn+2].[I-].[I-] QWYFOIJABGVEFP-UHFFFAOYSA-L 0.000 claims description 16
- LZOMHYVAEHYDST-UHFFFAOYSA-K thulium(3+);triiodide Chemical compound I[Tm](I)I LZOMHYVAEHYDST-UHFFFAOYSA-K 0.000 claims description 15
- RMUKCGUDVKEQPL-UHFFFAOYSA-K triiodoindigane Chemical compound I[In](I)I RMUKCGUDVKEQPL-UHFFFAOYSA-K 0.000 claims description 14
- 150000004694 iodide salts Chemical class 0.000 claims description 12
- 229910052738 indium Inorganic materials 0.000 claims description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 4
- 239000012071 phase Substances 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910001507 metal halide Inorganic materials 0.000 description 3
- 150000005309 metal halides Chemical class 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- -1 zinc halide Chemical class 0.000 description 3
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 2
- 229910052776 Thorium Inorganic materials 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 229940118288 radiant white Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
- MDMUQRJQFHEVFG-UHFFFAOYSA-J thorium(iv) iodide Chemical compound [I-].[I-].[I-].[I-].[Th+4] MDMUQRJQFHEVFG-UHFFFAOYSA-J 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
Definitions
- the invention relates to a high-pressure discharge lamp according to the preamble of patent claim 1.
- it is a high-pressure discharge lamp which can be used as a light source in headlights of motor vehicles.
- Such a high-pressure discharge lamp is disclosed, for example, in EP 1 351 276 A2.
- This document describes a high-pressure discharge lamp with a nominal power of 35 watts for use in the front headlights of motor vehicles.
- This high-pressure discharge lamp has a gas-tight discharge vessel, in which electrodes and a mercury-free filling are enclosed for generating a gas discharge, wherein the filling xenon and halides, in particular iodides, comprising metals sodium, scandium and zinc.
- EP 1 465 237 A2 discloses a high-pressure discharge lamp of the same type, the filling of which is likewise mercury-free and contains xenon and also iodides of the metals sodium, scandium, zinc and indium.
- WO 2010/001316 A1 describes a high-pressure discharge lamp for front headlamps of motor vehicles, the filling of which is mercury-free and zinc-free and contains iodides of the metals sodium, scandium and thulium and optionally indium.
- the filling of the high-pressure discharge lamp according to the invention required for generating the gas discharge should be designed such that it can also be used for a generic high-pressure discharge lamp of a conventional type, that is to say for a rated power of 35 W generic high-pressure discharge lamp and there likewise a light emission with increased color temperature allows.
- the high-pressure discharge lamp according to the invention has a discharge vessel sealed in a gastight manner, in which the electrodes and a mercury-free filling are enclosed to produce a gas discharge, the filling comprising xenon and halides of the metals sodium, scandium and zinc.
- the filling comprising xenon and halides of the metals sodium, scandium and zinc.
- halides of the metals thulium and manganese are contained in the filling.
- the combination according to the invention of the halides of thulium and manganese as an additive in the filling of the high-pressure discharge lamp makes it possible to increase the operating voltage of the high-pressure discharge lamp so that the proportion of zinc halide in mercury-free high-pressure discharge lamps according to the prior art is usually used to set the operating voltage of the high-pressure discharge lamp serves, can be reduced accordingly.
- the reduction of the Zinkhalogeni- danteils in the filling of the high pressure discharge lamp is again advantageous for a high luminous flux, because the luminous flux of the high pressure discharge lamp decreases with increasing proportion of zinc halide in the filling.
- the combination according to the invention of the halides of thulium and manganese as an additive in the filling of the high-pressure discharge lamp allows the construction of a high-pressure discharge lamp with mercury-free filling and a reduced electrical power consumption of less than 35 watts and a luminous flux of less than or equal to 2000 Im, the statutory Regulations, in particular the requirements of ECE Rule 99.
- the high-pressure discharge lamp according to the invention can also be used as a light source in headlights of motor vehicles which do not have a headlight washer system.
- the reduced electrical power consumption of the high-pressure discharge lamp according to the invention of less than 35 watts also contributes to the reduction of fuel consumption in the vehicle.
- the filling of the high-pressure discharge lamp according to the invention additionally contains at least one halide of indium.
- the color location of the white light emitted by the high-pressure discharge lamp in the color diagram according to the CIE 1931 or DIN 5033 standard is moved closer to the curve of the black (Planck) emitter.
- the light emitted by the high-pressure discharge lamp thereby appears to the human eye as radiant white.
- iodides are used as halides in the filling of the high-pressure discharge lamp according to the invention, because they are chemically less aggressive than the other halides.
- the filling of the high-pressure discharge lamp according to the invention preferably contains at least xenon and sodium iodide, scandium iodide, zinc iodide, thulium iodide and manganese iodide.
- the cold filling pressure that is the one at a
- the proportions by weight of the filling components sodium iodide, scandium iodide, zinc iodide, thulium iodide and manganese iodide are preferably in the following ranges of values: Table 1 :
- the above percentages by weight are based on the total weight of the halides or iodides present in the filling.
- the color temperature of the light emitted by the high-pressure discharge lamp according to the invention and its operating voltage, also known as the burning voltage can be varied.
- the high-pressure discharge lamp according to the invention which is compliant with the statutory provisions according to ECE Regulation 99.
- the filling of the high-pressure discharge lamp according to the invention contains, in addition to the aforementioned filling components xenon, sodium iodide, scandium iodide, zinc iodide, thulium iodide and manganese iodide also indium iodide to bring the color of the emitted light from the high-pressure discharge lamp of the invention closer to the curve of the black (Planck) radiator ,
- the weight fraction of indium iodide is preferably in the range of 1 to 4 percent by weight based on the total amount of halides or iodides in the filling.
- the filling of the high-pressure discharge lamp according to the invention requires no further additives.
- the total amount of halides present in the filling be formed of sodium iodide, scandium iodide, zinc iodide, thulium iodide, manganese iodide and indium iodide and, accordingly, the sum of the proportions by weight of sodium iodide, scandium iodide, zinc iodide, thulium iodide, manganese iodide and indium iodide 100% by weight relative to the total amount of sodium iodide Halides in the filling gives.
- unavoidable impurities in the discharge vessel or in the filling are not taken into account.
- these impurities may be substances that are emitted during lamp operation from the ends of the electrodes projecting into the discharge space.
- the volume of the discharge vessel of the high-pressure discharge lamp according to the invention advantageously has a value in the range of 0.015 cm 3 to 0.022 cm 3 and preferably a value in the range of 0.016 cm 3 to 0.019 cm 3,
- the total amount of halides or iodides in the filling of the high-pressure discharge lamp according to the invention is preferably at a value in the range of 8 mg to 15 mg per 1 cm 3 of the discharge vessel volume and particularly preferably in the range of 10 mg to 12 mg per 1 cm3 of the discharge vessel volume to provide in combination with the above value range for the discharge vessel volume, a high-pressure discharge lamp, after completion of their ignition phase and start-up phase for the operation with an electrical power consumption in the value range of 22 watts is designed to 28 watts.
- ignition phase denotes the operating phase of the ignition of the gas discharge in the high-pressure discharge lamp and the term “start-up phase” designates the operating phase of the high-pressure discharge lamp, which adjoins directly to the ignition phase and during which the metal halides in the filling in the vapor phase.
- start-up phase designates the operating phase of the high-pressure discharge lamp, which adjoins directly to the ignition phase and during which the metal halides in the filling in the vapor phase.
- start-up phase designates the operating phase of the high-pressure discharge lamp, which adjoins directly to the ignition phase and during which the metal halides in the filling in the vapor phase.
- start-up phase designates the operating phase of the high-pressure discharge lamp, which adjoins directly to the ignition phase and during which the metal halides in the filling in the vapor phase.
- the electrodes of the high-pressure discharge lamps according to the invention are rod-shaped and consist of tungsten wire and their diameter advantageously has a value in the range from 0.20 mm to 0.30 mm and preferably a value in the range from 0.26 mm to 0.28 mm. This ensures that the electrodes on the one hand are thick enough for a sufficiently high current carrying capacity and on the other hand also thin enough so that no cracks in the quartz glass of the discharge vessel, caused by the different thermal expansion coefficients of quartz glass and tungsten.
- the electrodes may also be made of tungsten doped with thoria to reduce the work function of electrons and thus the operating temperature of the electrodes.
- thoria to reduce the work function of electrons and thus the operating temperature of the electrodes.
- such electrodes release thorium during lamp operation, which is then present as an impurity in the form of thorium or thorium iodide in the interior of the discharge vessel and can thereby influence the filling or the gas discharge.
- the above-described mercury-free filling of the high-pressure discharge lamp according to the invention is also suitable for high-pressure discharge lamps, which are designed after completion of their ignition and start-up phase for operation with a higher power of 35 W, which is also referred to as rated power.
- the invention therefore also encompasses high-pressure discharge lamps which, after the end of their ignition and starting phase, are intended for operation with a power of 35 W and whose charge contains at least xenon, sodium iodide, scandium iodide, zinc iodide, thulium iodide and manganese iodide, the cold filling pressure of xenon is in the range of 1.0 megapascals to 1.8 megapascals, and for the weight proportions of the abovementioned iodides, the values given in Table 1 apply.
- the filling of the high-pressure discharge lamp according to the invention with a nominal power of 35 W and 1 to 4 weight percent indium iodide based on the total amount of iodides contained in the filling is required in addition to the filling components Xenon, sodium iodide, scandium iodide, zinc iodide, thulium iodide, manganese iodide and indium iodide no further additives.
- the total amount of halides present in the filling is formed of sodium iodide, scandium iodide, zinc iodide, thulium iodide, manganese iodide and indium iodide and, accordingly, the sum of the proportions by weight of sodium iodide, scandium iodide, zinc iodide, thulium iodide, manganese iodide and indium iodide is 100% by weight Total amount of halides in the filling results.
- the filling composition described above leads to an increase in the color temperature of the light emitted by it by about 300 Kelvin.
- the high-pressure discharge lamp according to the invention which is designed after the end of its ignition and start-up phase for operation with a power in the range of 22 W to 28 W
- the high-pressure discharge lamp according to the invention after completion of their ignition and start-up phase for the Operation is designed with a power of 35 W, other values for the volume of the discharge vessel, the fill of the halides and the diameter of the electrodes required.
- the volume of the discharge vessel of the high-pressure discharge lamp according to the invention with a rated power of 35 W preferably has a value in the range of 0.020 cm3 to 0.024 cm3 and the total amount of halides or iodides in their filling is preferably at a value in the range of 8 mg to 10 mg per 1 cm3 of the discharge vessel volume.
- the electrodes of this high-pressure discharge lamp according to the invention with a rated power of 35 W are likewise rod-shaped and consist of tungsten wire. However, their diameter preferably has a value in the range of 0.30 mm to 0.35 mm. This ensures that on the one hand the electrodes are thick enough for a sufficiently high current carrying capacity and on the other hand thin enough so that no cracks occur in the quartz glass of the discharge vessel due to the different thermal expansion coefficients of quartz glass and tungsten.
- Figure 1 is a schematic, partially sectioned view of a high-pressure discharge lamp according to the invention
- Figure 2 is a representation of the color locus of the inventive
- High-pressure discharge lamp emitted light in the color chart according to the standard CIE 1931 or DIN 5033 is a high-pressure discharge lamp, in particular a high-pressure metal halide discharge lamp, which is preferably used as a light source in a motor vehicle headlight and has an electrical power consumption of nominally 25 W. has.
- This lamp has a soffitten réelles discharge vessel 100 made of quartz glass with a gas-tight discharge chamber 103, a socket near 101 and a sockelfernen 102 squeezing.
- a soffitten réelles discharge vessel 100 made of quartz glass with a gas-tight discharge chamber 103, a socket near 101 and a sockelfernen 102 squeezing.
- two electrodes 104, 105 which are electrically conductively connected in each case via a molybdenum foil 106, 107 melted gas-tight in the pinch end 101, 102, respectively, to a power supply 108, 109 led out of the pinch end 101, 102.
- the electrodes 104, 105 consist of tungsten wire and each have a diameter of 0.27 mm.
- the optically effective distance between the electrodes 104, 105, that is to say the electrode spacing, which is externally perceived by the optical imaging properties of the lamp vessels 100, 16, is 3.9 mm.
- the lamp base has a base made of a plastic injection-molded part base sleeve 1 10, in which the discharge vessel 100 and a fused thereto outer bulb 1 16 are anchored.
- the outer bulb 16 is made of quartz glass doped with ultraviolet ray absorbing materials such as ceria and titanium oxide.
- the end facing away from the discharge vessel 100 of the base sleeve 1 10 is designed as a plug with two electrical contacts 1 12, 1 13.
- the center contact 1 12 is electrically connected to the leading out of the squeegee close pinch end 101 power supply 108, while the other, annular electrical contact 1 13 via a sheathed by a ceramic tube 1 14 recirculation 1 15 electrically conductive with the protruding from the sockets distant crimping 102 power supply 109 is connected.
- the discharge vessel 100 is surrounded by a cylindrical, almost coaxial with the discharge vessel 100 arranged outer piston 1 16, which is merged with the sockets distant crimp end 102 and in the base sleeve 1 10 extending tubular extension 1 17 of the discharge vessel 100.
- the outer piston 16 envelopes the discharge vessel 100, so that the region of the discharge space 103 is arranged completely within the outer bulb 16.
- an annular metallic holder element 18 serves to clamp the outer bulb 16 and four angled metal tabs 19, the first end of which is welded to the holder element 118 is and their second
- the discharge vessel 100 may be provided on its outer surface with a Zündangesbe- coating (not shown), as disclosed in EP 1 632 985 A1.
- the filling enclosed in the discharge vessel 100 is mercury-free and contains xenon and also sodium iodide (Nal), scandium iodide (Scl3), indium iodide (In13), zinc iodide (Zn12), thulium iodide (Tml3) and manganese iodide
- Na sodium iodide
- Scl3 scandium iodide
- In13 indium iodide
- Zn12 zinc iodide
- Tml3 thulium iodide
- Indium iodide 3% by weight The percentages by weight refer to the total amount of iodides present in the filling.
- the total amount of iodide in the filling is 12 mg per 1 cm 3 of the volume of the discharge vessel 100.
- Xenon is present in the discharge space 103 with a cold filling pressure of 1.5 megapascals.
- cold filling pressure refers to the at a temperature of
- the volume of the discharge vessel 100, in which the filling is enclosed, is 0.017 cm 3.
- the discharge vessel 100 In the region of the discharge space 103, the discharge vessel 100 essentially has the shape of an ellipsoid which is rotationally symmetrical about the longitudinal extension axis of the lamp.
- the inner diameter of the discharge vessel 100 lies in the region of the discharge space 103 at values in the range from 2.0 mm to 2.7 mm and preferably in the value range from 2.1 mm to 2.3 mm.
- This high-pressure discharge lamp is designed for operation with an electrical power of 25 W after completion of its ignition and start-up phase. It generates during operation white light with a color temperature of 4800 Kelvin and a luminous flux of less than or equal to 2000 Im.
- the color bort of the high-pressure discharge lamp according to the invention by means of Color coordinates x, y marked by a square 1.
- the color locus of the white light emitted by a high-pressure discharge lamp according to the prior art is additionally represented by a point 2.
- the curve of the Planckian radiator designated "Planck" and lines of constant color temperature are plotted for the values of 3500 Kelvin to 6000 Kelvin at intervals of 500 Kelvin Trapeze, the so-called ECE box, in which the white light color locations permitted by ECE Rule 99 are arranged, and the color of the white light emitted by high pressure discharge lamps used as a light source in motor vehicle headlights must be within this ECE box lie.
- the invention is not limited to the above-described embodiment of a high-pressure discharge lamp, which is designed after completion of their ignition and start-up phase for operation with an electrical power of 25 W, but also relates to high-pressure discharge lamps, which after completion of their ignition and start-up phase for the Operation with an electrical power of 35 W are constructed.
- the high-pressure discharge lamp according to the second exemplary embodiment of the invention is a high-pressure discharge lamp, in particular a high-pressure metal halide discharge lamp, which is preferably used as a light source in a motor vehicle headlight and has an electrical power consumption of a nominal 35 W.
- This high-pressure discharge lamp likewise has the structure shown in FIG.
- its filling enclosed in the discharge vessel 100 likewise has the composition listed in Table 2 and also contains xenon with a cold filling pressure of 1.5 megapascals.
- the volume of the discharge vessel is 0.022 cm 3 and the total amount of halides in the filling is 9 mg per 1 cm 3 of the discharge vessel volume.
- the electrodes and the discharge vessel of the high-pressure discharge lamp according to the second embodiment have larger dimensions.
- the electrodes 104, 105 of the high-pressure discharge lamp according to the second exemplary embodiment of the invention have a diameter of 0.33 mm, and the inside diameter of the discharge vessel 100 is in the region of the discharge space 103 at values in the range from 2.5 mm to 2.6 mm. Its outer diameter lies in the region of the discharge space 103 at values in the range of 6.2 mm to 6.4 mm.
- the externally perceived electrode spacing is in the value range from 4.0 mm to 4.2 mm and is preferably 4.1 mm.
- the color location of the white light emitted by the high-pressure discharge lamp according to the second exemplary embodiment is represented by a triangle 3.
Landscapes
- Discharge Lamp (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010062817 | 2010-12-10 | ||
| DE102010063755A DE102010063755A1 (de) | 2010-12-10 | 2010-12-21 | Hochdruckentladungslampe |
| PCT/EP2011/070097 WO2012076298A1 (de) | 2010-12-10 | 2011-11-15 | Hochdruckentladungslampe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2649637A1 true EP2649637A1 (de) | 2013-10-16 |
| EP2649637B1 EP2649637B1 (de) | 2014-08-20 |
Family
ID=46144696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11785382.0A Not-in-force EP2649637B1 (de) | 2010-12-10 | 2011-11-15 | Hochdruckentladungslampe |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2649637B1 (de) |
| JP (1) | JP2013545251A (de) |
| DE (1) | DE102010063755A1 (de) |
| WO (1) | WO2012076298A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807134A (zh) * | 2017-04-26 | 2018-11-13 | 东芝照明技术株式会社 | 放电灯 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013223708A1 (de) * | 2013-11-20 | 2015-05-21 | Osram Gmbh | Hochdruckentladungslampe für Kraftfahrzeugscheinwerfer |
| DE102014204932A1 (de) * | 2014-03-17 | 2015-09-17 | Osram Gmbh | Hochdruckentladungslampe |
| JP6770970B2 (ja) * | 2015-03-20 | 2020-10-21 | ルミレッズ ホールディング ベーフェー | 高輝度放電ランプの設計方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6853140B2 (en) | 2002-04-04 | 2005-02-08 | Osram Sylvania Inc. | Mercury free discharge lamp with zinc iodide |
| DE10312290A1 (de) | 2003-03-19 | 2004-09-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Hochdruckentladungslampe für Fahrzeugscheinwerfer |
| EP1632985B1 (de) | 2004-09-07 | 2014-06-25 | OSRAM GmbH | Hochdruckentladungslampe |
| JP2006318730A (ja) * | 2005-05-12 | 2006-11-24 | Harison Toshiba Lighting Corp | メタルハライド放電ランプおよびメタルハライド放電ランプシステム |
| JP4840589B2 (ja) * | 2006-10-27 | 2011-12-21 | 東芝ライテック株式会社 | 高圧放電ランプ装置 |
| JP2009032446A (ja) * | 2007-07-25 | 2009-02-12 | Toshiba Lighting & Technology Corp | 高圧放電ランプ |
| CN102007567B (zh) * | 2008-04-14 | 2013-06-19 | 皇家飞利浦电子股份有限公司 | 高效率放电灯 |
| WO2010001316A1 (en) | 2008-07-04 | 2010-01-07 | Philips Intellectual Property & Standards Gmbh | Mercury-free and zinc-free high intensity gas-discharge lamp |
-
2010
- 2010-12-21 DE DE102010063755A patent/DE102010063755A1/de not_active Withdrawn
-
2011
- 2011-11-15 JP JP2013542442A patent/JP2013545251A/ja active Pending
- 2011-11-15 EP EP11785382.0A patent/EP2649637B1/de not_active Not-in-force
- 2011-11-15 WO PCT/EP2011/070097 patent/WO2012076298A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012076298A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807134A (zh) * | 2017-04-26 | 2018-11-13 | 东芝照明技术株式会社 | 放电灯 |
| CN108807134B (zh) * | 2017-04-26 | 2021-05-28 | 东芝照明技术株式会社 | 放电灯 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012076298A1 (de) | 2012-06-14 |
| DE102010063755A1 (de) | 2012-06-14 |
| EP2649637B1 (de) | 2014-08-20 |
| JP2013545251A (ja) | 2013-12-19 |
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