WO2012171752A1 - Hochdruckentladungslampe mit zündhilfe - Google Patents
Hochdruckentladungslampe mit zündhilfe Download PDFInfo
- Publication number
- WO2012171752A1 WO2012171752A1 PCT/EP2012/059423 EP2012059423W WO2012171752A1 WO 2012171752 A1 WO2012171752 A1 WO 2012171752A1 EP 2012059423 W EP2012059423 W EP 2012059423W WO 2012171752 A1 WO2012171752 A1 WO 2012171752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wire
- discharge lamp
- pressure discharge
- ignition aid
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
- H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers
Definitions
- the invention relates to a high-pressure discharge lamp ge ⁇ Frankfurtss the preamble of claim 1.
- Such lamps are in particular high-pressure discharge lamps for general lighting or for photooptical purposes.
- Gas discharge lamps without radioactivity in the filling gas can be significantly more reliable ignite when ignition aids are used
- a discharge in an outer bulb can sometimes be used as a UV light source, see US 2003034738, WO2008007284.
- the outer bulb discharge usually has a lower ignition voltage than the lamp. However, these voltages are still higher than the ignition voltages of radioactive Krypton85 filled lamps.
- the object of the present invention is to provide a high-pressure discharge lamp whose ignition is ensured by simple inexpensive means.
- the invention relates to high-pressure discharge lamps with a discharge vessel made of quartz glass or ceramic, optionally with outer piston ⁇ .
- the invention particularly relates to discharge lamps, which are started with the aid of an ignition pulse in the amount of typically 4 to 5 kV, with
- discharge lamps for general lighting which usually have a gas-filled outer bulb and are designed for lifetimes of 6000h or more.
- the invention is also applicable to photo-optical lamps without Au ⁇ stankolben, in particular on xenon high-pressure discharge lamps.
- Such high-pressure discharge lamps are started by means of special ignitors.
- the ignition of the ignition device ⁇ are defined by appropriate standards.
- the conditions Conditions in the discharge vessel (volume, electrode gap, filling ⁇ gas, inflation pressure, Hg amount, amount and type of metal halides) must be coordinated so that the lamp ignites safely under the specified ignition conditions.
- the voltage required for ignition increases with increasing service life. This can result in old lamps not starting on conventional ignitors.
- the ignition must be guaranteed slightest ⁇ tet over the entire lifetime.
- the invention describes a solution that ensures a safe zuen ⁇ dung for high pressure discharge lamps.
- High pressure discharge lamps are used UV radiation.
- a discharge outside the discharge vessel in particular in an outer bulb, can be used as a UV light source.
- the advantage here is a dielectrically impeded discharge, in which only one auxiliary ignition electrode is in contact with the ambient air or a gas in the outer bulb. It is advantageous for the ignition voltage of the discharge on the outside
- Discharge vessel or in the outer bulb when free electrons can be generated by field emission.
- high electric fields must be generated on the auxiliary ignition electrode.
- the aim of the invention is in a cost effective manner
- a reduction of the ignition voltage outside, possibly in the outer bulb, can be achieved by using the field emission of electrons from the auxiliary ignition electrode. To do this on the ignition auxiliary electrode as large a number of places with ho ⁇ ago electric field strength generated.
- No. 6,622,580 describes that a suitable outer bulb filling gas can be excited by means of a dielectrically impeded discharge in such a way that sufficient UV radiation is generated for the ignition of the lamp.
- the necessary ignition voltages are in the range of 10 to 20 kV, so that this method for discharge lamps can not be applied, which must start at a firing pulse of 3-5 kV
- a prerequisite for the present invention is that outside the discharge vessel, in particular in the outer bulb of the lamp there is a gas which is suitable for forming a corona discharge, eg Ar, Xe or even air but also other gases or gas mixtures.
- the filling pressure can be between 1 bar and 0.1 mbar.
- a discharge vessel may also be directly exposed to air, i. operated without outer bulb.
- a suitable structure of an arrangement according to the invention provides that outside the end of the discharge vessel as close to the electrode, an electrically conductive arrangement is attached, which has one or more very small radii or sharp edges and is electrically connected to the power supply of the counter electrode (contacted variant ).
- the Zündinsan extract can be electrically connected even with a similar arrangement on the other side of the discharge vessel without contact to one of the two current supply (capacitive coupled variant).
- a wire is positioned at both ends of the discharge vessel so that each end of the wire is brought as close as possible to an electrode.
- foils or sheets are arranged and connected to each other at both ends of the discharge vessel as described above.
- an asymmetric structure is possible, which provides for only one side of the discharge vessel, an arrangement for forming the corona discharge and on the other hand as effective as possible capacitive coupling reali ⁇ Siert.
- the invention allows for very simple technical Anordnun ⁇ gen, which discharge lamps with above mentioned properties make sure to ignitors with an ignition pulse of 3-5 kV ignite. It is particularly advantageous in the case of sodium-containing lamps in the capacitively coupled variant.
- the ignition aid according to the invention is significantly more effective than a similarly constructed conventional ignition aid, since the corona discharge at the structure of a starting aid already forms at lower voltages than a dielectrically impeded discharge in the burner interior.
- the effectiveness of an ignition aid in crushed burners is often not very high, since the Zündosanowski must be led around the entire contusion and the pinch fills a large cross-sectional area, so that the induced electric fields are small. Melting is therefore more suitable.
- the presented invention makes it possible to selectively position a starting aid at the location of at least one film in the end of the discharge vessel, so that a comparatively large electric field is induced here.
- a discharge is generated outside the discharge vessel.
- the ⁇ relevant distance to the outer wall of the discharge vessel is easy to adjust and easy to keep production technology constant.
- the design of the ignition aid is very simple and inexpensive, since, for example, only a thin wire is needed.
- the Zündosbauteil touches the discharge vessel only at the ends, so that it is not exposed to such a high temperature load, such as components that have contact to the discharge vessel in the central region. This simplifies material selection.
- the emerging from the discharge vessel light is much less shielded than other Zündangeskonstrumenten.
- High-pressure discharge lamp having a starting aid, with a discharge vessel, said discharge vessel having two ends with Ab ⁇ seals, in which electrodes are fixed, characterized in that an ignition aid mounted on the outside on the discharge vessel is, wherein the ignition aid a local field amplifier in the form of at least one
- High-pressure discharge lamp according to claim 1, characterized ge ⁇ indicates that the discharge vessel is surrounded by an outer ⁇ piston, in particular wherein the outer bulb is filled with ionizable gas, wherein the ignition aid is housed in the outer bulb, and wherein the gas is selected from ⁇ from the group Noble gases, air, nitrogen or mixtures thereof, in particular Ar, Xe or air.
- High-pressure discharge lamp according to claim 1 characterized ge ⁇ indicates that the ignition aid is the portion of a wire or a piece of wire, wherein the ignition aid in cross-section has a shape having edges, in particular a polygon with straight or curved sections, or a wire section in the Cross-section is round and has a pitch circle a structure with Kan ⁇ th or tips.
- High-pressure discharge lamp according to claim 1 characterized ge ⁇ indicates that the ignition aid is a fine wire with a diameter of 5 to 400 ym, preferably 10 to 150 ym.
- High-pressure discharge lamp according to claim 1 characterized ge ⁇ indicates that the ignition aid is a flattening on egg ⁇ nem wire.
- High-pressure discharge lamp according to claim 1 characterized ge ⁇ indicates that the ignition aid is cooperating with at least a portion of a wire auxiliary part, in particular held by means of the wire at the end of Entla ⁇ training vessel film or on the wire on ⁇ spun fine wire with a diameter of 5 to 400ym, preferably 10 to 150 ym. 7. High-pressure discharge lamp according to claim 1, characterized ge ⁇ indicates that the ignition aid is galvanically or capacitively ⁇ tively coupled.
- High-pressure discharge lamp character- ized in that the ignition aid comprises a material having a low electron work function.
- High-pressure discharge lamp according to claim 1 characterized ge ⁇ indicates that the ignition aid is attached at least in the amount of a film in the region of the end of the discharge vessel.
- High-pressure discharge lamp according to claim 1 characterized ge ⁇ indicates that the ignition aid is a rolled wire, which is in particular twisted.
- High-pressure discharge lamp according to claim 2 character- ized in that the gas in the outer bulb has a cold ⁇ filling pressure of 0.1 mbar to 1 bar, preferably up to 1.5 mbar, in particular to 200 mbar.
- Fig. 1 is a high-pressure discharge lamp with ignition aid, first
- FIG. 2 shows a detailed view of a further embodiment of a starting aid
- FIG. Fig. 3 shows another embodiment of a starting aid
- Figure 6 is a diagram showing the ignition voltage with and without
- Figure 7 shows an embodiment of a capacitive ignition ⁇ aid
- FIG. 8 to 10 further embodiments of capacitive
- FIG. 1 shows schematically the basic structure of a
- the discharge vessel 2 has a discharge vessel 2 made of quartz glass, which is housed in an outer bulb 3.
- the outer bulb is filled with argon at 0.1 to 1 bar cold filling pressure, preferably up to 1.5 mbar.
- the outer feeds 4 of the discharge vessel, which contact electrodes 14 in the interior, are connected to two frame wires 5 and 6.
- a short frame wire 5 leads to a first foil 7 in a pinch 8 of the outer bulb.
- the discharge vessel 2 has a filling of an ionizable gas, usually argon or xenon, mercury and metal halides, as known per se.
- An ignition aid see Fig. Lb and lc, here in the form of a clip 12 is placed as a cuff around a first pinch 8 of the discharge vessel and connected via an elbow 15 to the hanger wire 6.
- the clip 12 has a frame member 16 which is shaped like the frame of an image, with two narrow ⁇ sides 17 and two longitudinal sides 18. At each side sits about in the middle of an inwardly pointing into the cavity of the frame resilient tab 19 and 29 to press the clip to the Quet ⁇ tion, as known per se.
- the tabs are bent in pairs in opposite directions out of the plane of the frame 16.
- the clip In order to induce a corona discharge in the outer bulb, the clip additionally has a short wire piece 20, which is attached to a tab 29, which is fixed to a broad side 18 and bent in the direction of the discharge volume, and protrudes beyond it in the direction of the discharge volume.
- the free tip 22 of the piece of wire induces a corona discharge in the surrounding gas in the outer bulb.
- This corona discharge is further assisted by the fact that the short wire piece 20 has an embossed structure completely or in sections, as explained in more detail in FIG.
- FIG. 2 shows a similar lamp 1, in the same type
- this embodiment ⁇ example has no clip. Rather, the hanger wire 6 has a structured portion 22, which serves directly as a starting aid.
- the embossed structure or applied structure of section 22 induces corona discharge in the surrounding gas in the outer bulb.
- the section 22 has an embossed structure, as explained in more detail in Figure 3.
- Figure 3 shows embodiments of the portion 22, generated at the peaks and ridges on a portion 22 of a piece of wire 20 or the strap or wire 6 of the short wire 5 ⁇ which by means of an embossing structure.
- the technique as in DE202006016189U1 be introduced ⁇ sandblasting or any other method of surface structuring cost-up in the form of a knurling, a scraping, see.
- the particular advantage of this method of embossing is that it is a well known technique han ⁇ delt, which is highly reproducible and can be adjusted to the specific Anfor ⁇ alteration exact legal.
- the mechanical stability plays only a minor role, compared with ei ⁇ ner application to the hanger wire. 6
- FIG. 3a shows a section 22 of square cross-section, in particular as a section of the power supply line 6.
- transverse grooves 30 are mounted on opposite sides at the same height in each case.
- the construc ⁇ tion is similar, however, the transverse grooves 30 are each offset from each other.
- transverse grooves 30 are each mounted as V-shaped notches alternately on different sides of the square-shaped wire.
- FIG. 3b shows a section 22 which is round or disc-shaped in cross-section, that is to say with the general usual cross-section.
- the transverse grooves 30 are here laterally mounted notches, which are opposite to each other, similar to a chicken ladder. In principle, transverse grooves on only one side of the section 22, see FIG. 3e, or also sections 22 with longitudinal grooves 35, see FIG. 3f.
- the embossed structure without any clip construction is preferably also applied to a section of a frame wire, preferably to the long frame wire 6, approximately at the level of one or even both electrodes.
- the common use of a clip and a hanger wire with ignition aids is possible.
- a separate ignition aid with embossed structure, which is attached to the frame is possible.
- FIG. 4 shows exemplary embodiments which specifically offer the possibility of utilizing field peaks over the length of the section 22. This profiled wires are used. Such profile wires have production-related edges 38 with clotting ⁇ gen radii of curvature.
- stirrup wires 6, wires 20, or simple square sections 22 Cross-section see Figure 4a, so without embossed structure, or stirrup wires 6 or sections 22 with cross sections in the form of a triangle Figure 4b or rectangle Figure 4i.
- Particularly pronounced edges 38 can also be achieved with a special profile design; in particular, a D
- Profile (Figure 4c), a star profile ( Figure 4d), a profile similar ⁇ a key bit ( Figure 4e), a dumbbell-like profile (Figure 4f).
- Further embodiments are wires 20 or sections 22, which are indeed round in cross-section, but are provided in sections over a partial circle of its circumference with longitudinal ⁇ grooves 35.
- the grooves may have 48 (triangular-shaped in cross-section than spitzwinkeli ⁇ ges triangle) or flattened edges 58 (in cross section tra ⁇ pezförmig) even spit ⁇ ze edges.
- Figure 5a shows a further embodiment, namely ei ⁇ NEN auxiliary starting wire as a portion 22 having a fine wire 23 to umdietaryin .
- the fine wire 23 for the small radii of curvature and therefore for high field strengths ensures, without the mechanical properties of the starting aid characterized influenced negatively loading become.
- Such a construction is suitable as ⁇ forth very good for a long power supply 6.
- the wires 20 or headband wires 6 can be ge into thin films ⁇ rolls and 45, respectively ( Figure 5b) may be provided with a flattened portion.
- the diameter of the fine wire 23 is advantageously in the range 10 to 150 ym of the diameter of the Ab ⁇ section 22 on which the fine wire is applied, is tically ⁇ in a range of 1 to 3 mm.
- the design of the ignition aid described in the invention makes it possible, even in lamps in which no additional UV light source can be used, to avoid radioactivity in the filling gas. Lamps without radioactivity with ⁇ times, not inventive Zünd Anlagenn reach already lower ignition voltages than those without any ignition aid. Al ⁇ lerdings still are those over which of lamps with radioactivity. A direct replacement in the market without changing the operating device is therefore not always possible. Only by the inventive design of the ignition aid, ie the targeted, reproducible introduction of places with little Oberflä ⁇ Chen curvature (burrs, peaks, edges), this is possible. Such profiling a wire leading to a reduction from ⁇ the ignition voltage. Depending on the type and position of the profiled section, a noticeable reduction of the ignition voltage is achieved according to FIG. Instead of 4 kV without profile only about 3 kV are needed.
- a typical length for such a portion 22 is 1 to 5 mm.
- the ignition aid is purely capacitive.
- the effective structural ⁇ structure is as close as possible to the discharge vessel, to be precise preferably attached to the ends of the discharge vessel in the area of films.
- the effective structure may be in the range a film, alternatively in the range of both films or extend over the entire length of the ignition aid.
- FIG. 7 shows a high-pressure discharge lamp 35, in which a discharge vessel 36 is provided with two ends 37, which are formed as cylindrical melts. An outer piston 38 is attached to the ends of the fins.
- the starting aid 39 here is a wire which is distributed symmetrically to both melts. Under the wire, a film is inserted portion ⁇ example, the edges of which have a de zünd factorn- or the ignition voltage lowering effect.
- FIG. 9 shows a discharge vessel 2 made of quartz glass, in which foil strips 11, 12 are wound around the ends of the discharge vessel in the region of the foils in the melt at the ends of the bulbous discharge vessel and are connected to a further foil 26.
- FIG. 10 shows an exemplary embodiment in which wire windings are designed asymmetrically.
- wire windings there are approximately two to three windings 21 on a pinch seal or fusion 20, and approximately eight to ten windings 22 on the second pinch seal 20.
- These two winding parts 21 and 22 are again connected via a wire 23.
- the ratio of the number of turns of the winding should preferably be 2: 1 to 4: 1.
- the wire from which the windings 21 and 22 are made is a fine wire having a diameter of 10 to 400 ym. of small diameter, in particular up to 150 ym, generated itself is already sufficiently high to lower field strengths and the Zündspan ⁇ voltage.
- a good compromise between stability and ignition-promoting effect is a diameter of 80 to 120 ym.
- FIG. 11 shows a further exemplary embodiment in which the same basic arrangement as in FIG. 10 is used.
- the wire used is a specially treated wire 44 which is flat-rolled and in particular, as shown, is additionally twisted. During rolling, a thickness of the wire of about 30 to 80 ym is achieved at the edges of the rolled wire is still much thinner.
- This embodiment shows even better stability and ignition-promoting effect, but it is somewhat more expensive from the assembly and the processing of the wire ago.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112012001001T DE112012001001A5 (de) | 2011-06-14 | 2012-05-22 | Hochdruckentladungslampe mit Zündhilfe |
| US14/125,955 US8896204B2 (en) | 2011-06-14 | 2012-05-22 | High-pressure discharge lamp with a starting aid |
| CN201280026714.9A CN103563047B (zh) | 2011-06-14 | 2012-05-22 | 具有辅助点火器的高压放电灯 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011077487.4 | 2011-06-14 | ||
| DE102011077487A DE102011077487A1 (de) | 2011-06-14 | 2011-06-14 | Hochdruckentladungslampe mit Zündhilfe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012171752A1 true WO2012171752A1 (de) | 2012-12-20 |
Family
ID=46298377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2012/059423 Ceased WO2012171752A1 (de) | 2011-06-14 | 2012-05-22 | Hochdruckentladungslampe mit zündhilfe |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8896204B2 (de) |
| CN (1) | CN103563047B (de) |
| DE (2) | DE102011077487A1 (de) |
| WO (1) | WO2012171752A1 (de) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5911919A (en) | 1997-09-08 | 1999-06-15 | Integrated Thermal Sciences, Inc. | Electron emission materials and components |
| US20030034738A1 (en) | 2001-01-31 | 2003-02-20 | Stanley Electric Co., Ltd. | High pressure electric discharge lamp |
| US6593706B1 (en) * | 2001-10-02 | 2003-07-15 | The Regents Of The University Of California | High pressure neon arc lamp |
| DE202006016189U1 (de) | 2006-10-23 | 2007-01-18 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Hochdruckentladungslampe |
| JP2007073436A (ja) * | 2005-09-08 | 2007-03-22 | Sony Corp | ショートアーク放電ランプ及び光源装置 |
| WO2008007284A2 (en) | 2006-07-07 | 2008-01-17 | Koninklijke Philips Electronics N. V. | Gas-discharge lamp |
| US20100181926A1 (en) * | 2008-02-01 | 2010-07-22 | Minoru Ozasa | High-pressure discharge lamp system and projector using the same |
| DE102009047861A1 (de) | 2009-09-30 | 2011-03-31 | Osram Gesellschaft mit beschränkter Haftung | Hochdruckentladungslampe mit kapazitiver Zündhilfe |
| WO2012045366A1 (de) * | 2010-10-08 | 2012-04-12 | Osram Ag | Hochdruckentladungslampe mit kapazitiver zündhilfe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19933023A1 (de) * | 1999-07-15 | 2001-01-18 | Philips Corp Intellectual Pty | Gasentladungslampe |
| AU764833B2 (en) * | 2000-06-30 | 2003-09-04 | Toshiba Lighting & Technology Corporation | A glow starter for a high-pressure discharge lamp |
| US6995513B2 (en) * | 2001-05-08 | 2006-02-07 | Koninklijke Philips Electronics N.V. | Coil antenna/protection for ceramic metal halide lamps |
| CN101410934A (zh) * | 2006-03-23 | 2009-04-15 | 皇家飞利浦电子股份有限公司 | 放电空间中具有低功函金属的高强度放电装置 |
| DE112010001171T5 (de) * | 2009-03-10 | 2012-04-12 | Osram Sylvania Inc. | Dielektrisch gefüllter Felderzeuger für EHID-Lampen und diesen umfassende EHID-Lampenanordnung |
-
2011
- 2011-06-14 DE DE102011077487A patent/DE102011077487A1/de not_active Withdrawn
-
2012
- 2012-05-22 CN CN201280026714.9A patent/CN103563047B/zh not_active Expired - Fee Related
- 2012-05-22 DE DE112012001001T patent/DE112012001001A5/de not_active Withdrawn
- 2012-05-22 US US14/125,955 patent/US8896204B2/en not_active Expired - Fee Related
- 2012-05-22 WO PCT/EP2012/059423 patent/WO2012171752A1/de not_active Ceased
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5911919A (en) | 1997-09-08 | 1999-06-15 | Integrated Thermal Sciences, Inc. | Electron emission materials and components |
| US20030034738A1 (en) | 2001-01-31 | 2003-02-20 | Stanley Electric Co., Ltd. | High pressure electric discharge lamp |
| US6624580B2 (en) | 2001-01-31 | 2003-09-23 | Stanley Electric Co., Ltd. | High pressure electric discharge lamp |
| US6593706B1 (en) * | 2001-10-02 | 2003-07-15 | The Regents Of The University Of California | High pressure neon arc lamp |
| JP2007073436A (ja) * | 2005-09-08 | 2007-03-22 | Sony Corp | ショートアーク放電ランプ及び光源装置 |
| WO2008007284A2 (en) | 2006-07-07 | 2008-01-17 | Koninklijke Philips Electronics N. V. | Gas-discharge lamp |
| DE202006016189U1 (de) | 2006-10-23 | 2007-01-18 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Hochdruckentladungslampe |
| US20100181926A1 (en) * | 2008-02-01 | 2010-07-22 | Minoru Ozasa | High-pressure discharge lamp system and projector using the same |
| DE102009047861A1 (de) | 2009-09-30 | 2011-03-31 | Osram Gesellschaft mit beschränkter Haftung | Hochdruckentladungslampe mit kapazitiver Zündhilfe |
| WO2012045366A1 (de) * | 2010-10-08 | 2012-04-12 | Osram Ag | Hochdruckentladungslampe mit kapazitiver zündhilfe |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112012001001A5 (de) | 2013-11-28 |
| US8896204B2 (en) | 2014-11-25 |
| CN103563047B (zh) | 2016-08-17 |
| CN103563047A (zh) | 2014-02-05 |
| DE102011077487A1 (de) | 2012-12-20 |
| US20140091706A1 (en) | 2014-04-03 |
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