WO2006131202A1 - Dispositif lumineux comportant une ampoule exterieure, notamment lampe a decharge haute pression - Google Patents

Dispositif lumineux comportant une ampoule exterieure, notamment lampe a decharge haute pression Download PDF

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Publication number
WO2006131202A1
WO2006131202A1 PCT/EP2006/004840 EP2006004840W WO2006131202A1 WO 2006131202 A1 WO2006131202 A1 WO 2006131202A1 EP 2006004840 W EP2006004840 W EP 2006004840W WO 2006131202 A1 WO2006131202 A1 WO 2006131202A1
Authority
WO
WIPO (PCT)
Prior art keywords
lighting device
silicate glass
weight
glass
metal
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
Application number
PCT/EP2006/004840
Other languages
German (de)
English (en)
Inventor
Ulrich Peuchert
Peter Brix
Thilo Zachau
Jörg Fechner
Franz Ott
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.)
Schott AG
Original Assignee
Schott AG
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
Priority claimed from DE102005026695A external-priority patent/DE102005026695A1/de
Application filed by Schott AG filed Critical Schott AG
Priority to CN2006800192787A priority Critical patent/CN101189702B/zh
Priority to JP2008515082A priority patent/JP2008543022A/ja
Publication of WO2006131202A1 publication Critical patent/WO2006131202A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
    • 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
    • H01J61/302—Vessels; Containers characterised by the material of 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

  • Lighting device with an outer bulb in particular high-pressure discharge lamp
  • the present invention relates to a lighting device comprising at least a first body having a lamp and a second body enclosing the first body, in particular, the present invention relates to high-pressure discharge lamps and in particular compact metal halide high-pressure discharge lamps.
  • a first body forms a gas-tight discharge space, which is filled with an ionizable filling.
  • the discharge space is also referred to as a burner.
  • the discharge space of high-pressure discharge lamps according to the prior art as described for example in WO 2004/077490 or WO2005 / 033802, comprises one or more metal halides, mercury and rare earth halides. These are added at RT in liquid or solid form in the burner and are present after ignition due to the then prevailing high pressures and temperatures in gaseous form.
  • the second body which surrounds the first body and is preferably in the form of a piston, is used for thermal encapsulation of the first body, which represents the actual light-emitting unit and / or for damage / explosion protection or for the protection of materials and the lamp user from harmful Radiation, especially against UV rays.
  • the burners of high-pressure discharge lamps made of silica glass or translucent ceramic (eg Al 2 O 3 , YAG ceramics) are operated at the highest possible operating temperatures up to 1000 ° C. or more. The higher the operating temperatures, the higher the color rendering index and the effectiveness and the lower the differences in the quality of light from lamp to lamp.
  • the space between the first and second body is mostly or substantially evacuated for thermal insulation.
  • the second body also called envelope, is doped with UV-blocking components for UV blocking.
  • the temperature at the second body, ie at the outer bulb is at a high-pressure discharge lamp, a so-called HID lamp, 300 0 C - 850 0 C. This depends on a number of factors, including the distance of the hot spot of the burner from the piston , Accordingly, the
  • Passage area significantly colder than the burner directly adjacent piston volume may well be wall temperatures up to 800 0 C or above prevail.
  • the outer bulb should preferably be characterized by a high UV blocking.
  • the type of UV-C radiation (around 260 nm) and the UV-B radiation (around 310 nm) should be blocked by the bulb.
  • the UV-A radiation is blocked by 360 nm to the highest possible proportion.
  • the areas between these more or less discrete Hg-UV lines should also be blocked as well as possible because mercury or metal halides under pressure have broad emission bands here.
  • the high pressure discharge lamps are as material for the first body, ie the so-called discharge space, in addition to silica glass as a material also translucent alumina, which is loadable up to 1100 0 C or above used.
  • materials of the second body i. of the outer bulb are currently used predominantly silica glass or multi-component glasses.
  • UV blocking can be realized in silica glass by doping CeO 2 , preferably in contents ⁇ 1% by weight.
  • this has the disadvantage of a residual transmission in the hard UV-C radiation.
  • H I D lamps Another problem with prior art H I D lamps is the range of feedthroughs. If, as described above, the first (inner) and / or second (outer) lamp vessel is made of silica glass, then the passages, seen from outside to inside, are made of W or Mo wire, which is attached to a Mo film with a thickness ⁇ 100 is welded, and another welding point to a W-wire or Nb-wire, the inside of the lamp, z. B. W discharge electrodes leads.
  • the melting is carried out in a protective gas stream, in particular under argon.
  • the melted films tend to oxidize during operation. This can lead to leaks and failure of the lamp.
  • the thin film allows only insufficient energy transport into the lamp.
  • the production, i. the multiple welding together of metal components is complicated and expensive, also due to the spatial extent of the implementation system, the overall length of the lamp is unfavorably very large.
  • the base plate can be made of glass, ceramic or glass ceramic, for the piston as described above "quartz glass, soft glass or hard glass.”
  • the frit ring matehal is not further specified previously described that the material of the outer bulb is not specified.
  • the object of the invention is to overcome the disadvantages of the prior art in high-pressure discharge lamps.
  • a lighting device to be specified with a first inner body and a second, outer body, in which the second body
  • Outer bulb is preferably attached to a non-zero strain base plate via a frit, i. there is no contact of the piston with the lead-through wires per se.
  • the material of the outer bulb should have a high temperature resistance and a non-zero thermal expansion. In particular, in the field of implementation only small
  • the object is achieved by a device according to claim 1, that is, the second body consists of an Al-silicate glass, such as a toughened glass.
  • the Al-silicate glass has a Tg> 600 0 C 1 preferably 650 0 C, more preferably 700 ° C, ideally> 750 ° C, more preferably> 770 ° C, particularly preferably> 790 0 C and a thermal expansion coefficient ⁇ 2 0 / 3 00> 0, preferably in the range 3 ⁇ 20/300 ⁇ 6, in particular preferably 3.5 ⁇ ⁇ 20/300 ⁇ 5.5.
  • an aluminosilicate glass of the second body i. the material of the outer bulb, a tempered glass.
  • the aluminosilicate glass composition preferably has almost 100% blocking in the UV-C range, ie all wavelengths around 260 nm, preferably up to and including 300 nm, are no longer allowed to pass through at RT as well as at operating temperatures through the piston of thickness 1 mm or higher , In operation, all wavelengths around the UV-B line (at 310 nm) are particularly preferably 100% blocked, particularly preferably even wavelengths up to 320 nm.
  • the UV-C range is understood to mean UV radiation at 260 nm, UVB radiation at 310 nm and UVA at UV wavelengths around 365 nm.
  • the lamp is composed of a plate carrying the current feedthrough and a piston.
  • the expansion coefficient ⁇ 20/300 of the base plate and the outer bulb is preferably substantially equal to that of the metal of the feedthrough wires .
  • the material of the feedthrough wires is therefore one of the following metals or alloys:
  • Tungsten molybdenum niobium metal covar alloy and Molezdenwanov alloy Tungsten molybdenum niobium metal covar alloy and Molezdenwanov alloy.
  • the expansion coefficient of the base plate and the outer bulb is therefore preferably in the range of 3.5 ⁇ 20/300 ⁇ 5.5 according to the invention .
  • quartz glass is generally not possible.
  • a sufficient UV-C blocking is therefore particularly suitable a multi-component glass, ie an aluminosilicate glass, hereinafter also referred to as "Al-silicate glass”.
  • the Al-silicate glass contains the following composition (% by weight based on oxide):
  • Iterhin preferred Al-silicate glass contains the following components:
  • Al-silicate glass of the invention contains the following components:
  • Al-silicate glass containing the following components:
  • Al-silicate glasses are substantially alkali-free.
  • alkali-containing Al-silicate glasses can be used in just as suitable form. These are based, for example, on the following glass compositions in% by weight:
  • customary refining agents such as SnO 2 , CeO 2 , SO 4 , Cl, As 2 O 3 Sb 2 O 3 in amounts of 0-4 wt .-%.
  • Another suitable alkali-free glass is based on the following glass compositions in wt .-%:
  • MgO O-20 preferably 4-20, in particular 6-20
  • ZnO 0-15 preferably 0-9, in particular 0-4
  • TiO 2 0-10 preferably 1-10 ZrO 2 0-10, preferably 1-10
  • Ta 2 O 5 0-8 preferably 0 - 2
  • BaO 0-10 preferably 0-8 CaO 0 - ⁇ 8, preferably 0 - 5, in particular ⁇ 0.1
  • customary refining agents such as SnO 2 , CeO 2 , SO 4 , Cl, As 2 O 3 Sb 2 O 3 in amounts of 0 - 4 wt .-%.
  • the glass compositions of the invention are characterized in particular by the fact that the UV edge can be adjusted in a targeted manner by adding suitable UV blockers. Thereby it is e.g. It is also possible to adjust the transmission in the wavelength range around 400 nm in a targeted manner in such a way that the bluish cast, which can occur in the emission of the HID lamps according to the prior art, is reduced.
  • the Al-silicate glasses according to the invention in particular hard glasses, it is possible, by addition of oxides, such as Fe 2 O 3 or TiO 2 or other classic UV blockers, such as Mo, Nb and / or Ce oxide, first to adjust the UV edge similar to that of UV silica glass.
  • the Al-silicate glass according to the invention preferably contains at least one metal oxide selected from the group consisting of TiO 2 , CeO 2 , Fe 2 O 3 , WoO 3 , ZrO 2 , MoO 3 , Bi 2 O 3 , Nb 2 O 5 and / or Ta 2 O 5 .
  • Discharge body has too much blue shares, on the steepness of the UV edge also targeted a yellow intrinsic color adjustable. This filters too big Blue shares off.
  • the self-yellowing of the blue cast of the burner of the HID lamp is compensated and achieved compared to conventional HID lamp improved white impression.
  • an Al-Siliaktglas are used, the wavelength nm less than or equal 300 at temperatures of about 600 0 C light, preferably less than or equal 310 nm essentially completely blocked, ie the transmittance is ⁇ 0.01.
  • the Al-silicate glass may have a transmittance in the range 0.5-0.91 at about 400 nm.
  • the Al-silicate glass is selected such that this at about 400 nm at 600 0 C, a transmittance less than 86% and a Fe 2 O 3 content> 10 ppm, preferably> 100 ppm, in particular> 300 ppm having.
  • the UV edge can be set arbitrarily. In this way, suitable transmissions at 400 nm can be generated, which positively influence the value depending on the value, the reproduction index CRI and / or the color temperature of a lamp.
  • the rendering index of a lamp is the so-called Color Rendering Index (CRI).
  • CRI Color Rendering Index
  • the Color Rendering Index (CRI) describes the white impression of a illuminated area.
  • the objectively worse is the white.
  • the surface then appears more or less gray.
  • a CRI index of 100 describes a lamp with an optimal emission spectrum, i. an optimal white impression.
  • HID lamps can still be quite blue-heavy.
  • the Blaulastmaschine can be reduced by a suitable doping with high temperature resistance, thermal expansion CI2 0/300> 0 and sufficient UV blocking or be completely compensated for, so that HID lamps having a CRI index> 90, preferably> 95, are obtained.
  • the invention also provides the use of an al-silicate glass for a lighting device, in particular a metal halide
  • Figure 1 a, b an HID lamp with a second body, which forms the outer bulb of the HID lamp;
  • Figure 2 transmission curves for the embodiments A1, A2, A3
  • FIG. 5a, b transmission data of the glass A2 from FIG. 1 and FIG. 2 in FIG
  • FIG. 1 a shows schematically an HID lamp and in FIG. 1 b an alternative embodiment with an feedthrough component, as described, for example, in WO 2004/077490.
  • FIG 1a in addition to the outer bulb 1 and the burner system 2, which may be formed as Al 2 ⁇ 3 burner, also shown.
  • the burner system 2 is attached to a nipple 4.
  • the burner system comprises a so-called first body, which forms the discharge space of the burner.
  • the nipple 4 results when the exhaust tube is melted after applying the vacuum, which prevails in the outer bulb.
  • the so-called former fusion point then functions as the upper fixed point of the burner system 2, which has a significantly greater mass in comparison to, for example, a W coil in the case of a halogen lamp, so that a fixation in the outer bulb is advantageous.
  • the feed wires 6 and discharge wires 8 are shown. Although the feed and discharge wires 6, 8 are stiff enough to hold the burner, greater safety and reproducibility in the positioning of the burner but is obtained when an extension 10 of the discharge wire 8 has an anchor at the top of the nipple 4 above.
  • the outer bulb 1 is formed from an Al-silicate glass. Possible compositions of the Al silicate glass are given in the following tables.
  • the metal feeders are attached thereto.
  • the metal leads are included in a feedthrough component, a so-called base plate 50.
  • the outer bulb is in this case added to the feedthrough wires 68-containing base plate 50 via a frit ring.
  • the fusion zone is reduced to a minimum, which is predetermined by the thickness of the base plate 50.
  • the expansion coefficient ⁇ 20/300 of the base plate and the outer bulb is substantially equal to that of the metal of the feedthrough wires.
  • the material of the feedthrough wires 6, 8 is one of the following metals or alloys:
  • Niobium metal a kovar alloy and a Molezdenwanov alloy. According to the thermal expansion coefficient ⁇ 20/300 of these metals, the expansion coefficient of the base plate and the outer bulb is in the range 3.5 ⁇ 20/300 ⁇ 5.5. For this reason, the use of quartz glass is not possible. Similarly, the inadequate UV-C blocking is in favor of a multicomponent glass, eg an Al-silicate glass.
  • the glasses shown in Figs. 2 and 3 have the following compositions and properties:
  • Table 1 In Figures 2 and 3, the transmission curves for the embodiment 1, the embodiment 2 and the embodiment 3 and the comparative examples V1 and V2 at room temperature or 600 0 C are given. The samples all have a thickness of 1 mm.
  • V1 corresponds to Ce-doped silica glass, which can not be used in the new HID lamp concept according to the invention because of the lack of adaptation in the expansion coefficient.
  • the UV edge is favorable (highest wavelength value at which the glass is only up to 1, 0% transmissive: 324 nm), but V1 is still transmissive at 260 nm.
  • V2 corresponds to a non-UV-blocked Al-silicate glass. Due to the lack of UV blocker (the edge position occurs only through the impurities introduced via the raw materials), V1 is still transmissive at RT as well as at 600 ° C. at 290 nm.
  • the embodiments A1, A2 and A3 are significantly better in comparison.
  • the Ti-leading glasses A1 and A2 are no longer transmissive to 295 or 305 nm.
  • the Ce variant A3 is optically dense even up to 328 nm.
  • the glasses A1-A3 are even up to max. 310 nm or even more impermeable.
  • all variants according to the invention are impermeable to the very harmful UV-C radiation (260 nm).
  • the glasses A1, A2 and A3 have a comparable or slightly reduced transmission at 400 nm compared to V1. As stated above, however, this can be used selectively if the emission of the burner unit is too blue-heavy.
  • a transmission in the range from 50 to 91% can therefore be set variably with respect to silica glass at a wavelength of 400 nm.
  • Table 2 Glass composition for embodiment A 4 in% by weight
  • Table 3 Glass composition for embodiment A 5 in% by weight SiO 2 64.45
  • the steepness of the transmission curve of embodiment A4 is at 600 0 C approximately comparable to the transmission curve of the embodiment V1.
  • the transmission curve of A5 is even approximately congruent with V1 at 600 ° C. In comparison with V1, both embodiments additionally have the great advantage of completely blocking the harmful UV-C radiation at 260 nm as well as the thermal expansion matched to lead-through metals.
  • the effect of the transmission of the outer bulb glass on the Farb characterisik the entire lamp at an exemplary operating temperature of 600 0 C illustrates Figure 6.
  • the lamp color results from folding the primary emission of the burner with the filter function of the outer bulb.
  • the embodiment A3 is advantageous in that it shifts the color layer more in the direction of the ideal white point.
  • the parameter C chroma, sparkleness
  • the CRI Color rendering index
  • the blue cast of the lamp is reduced by the yellow filter effect of the outer bulb material.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

L'invention concerne un dispositif lumineux, de préférence une lampe à décharge haute pression aux halogénures métalliques, comprenant: 1.1. un premier corps présentant une source lumineuse; 1.2. un deuxième corps qui entoure le premier corps; 1.3. le deuxième corps étant constitué de verre de silicate d'aluminium; 1.4. le verre de silicate d'aluminium présentant 1.4.1. une valeur T<SUB>g</SUB> > 600 °C, de préférence > 650 °C, mieux encore > 700 °C, idéalement > 750°C et 1.4.2. un coefficient de dilatation thermique a (20° - 300°C) > 0, se situant de préférence dans la plage 3 = a (20° - 300°C) = 6, idéalement 3,5 = a (20° - 300°C) = 5,5.
PCT/EP2006/004840 2005-06-09 2006-05-22 Dispositif lumineux comportant une ampoule exterieure, notamment lampe a decharge haute pression Ceased WO2006131202A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2006800192787A CN101189702B (zh) 2005-06-09 2006-05-22 具有外置灯泡的发光装置，特别是高压-放电灯
JP2008515082A JP2008543022A (ja) 2005-06-09 2006-05-22 特に高圧放電灯などの外套管付き照明装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005026695A DE102005026695A1 (de) 2005-06-09 2005-06-09 Leuchtvorrichtung mit einem Außenkolben, insbesondere Hochdruck-Entladungslampe
DE102005026695.9 2005-06-09
US11/345,167 US20060279217A1 (en) 2005-06-09 2006-02-01 Light device including an outside bulb, especially a high pressure discharge lamp
US11/345,167 2006-02-01

Publications (1)

Publication Number Publication Date
WO2006131202A1 true WO2006131202A1 (fr) 2006-12-14

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PCT/EP2006/004840 Ceased WO2006131202A1 (fr) 2005-06-09 2006-05-22 Dispositif lumineux comportant une ampoule exterieure, notamment lampe a decharge haute pression

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WO (1) WO2006131202A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975975A1 (fr) 2007-03-30 2008-10-01 Patent-Treuhand-Gesellschaft Für Elektrische Glühlampen mbH Unité de construction pour une lampe électrique dotée de pistons extérieurs
DE102007015483A1 (de) 2007-03-30 2008-10-02 Osram Gesellschaft mit beschränkter Haftung Baueinheit für eine elektrische Lampe mit Außenkolben
DE102007015481A1 (de) 2007-03-30 2008-10-02 Osram Gesellschaft mit beschränkter Haftung Baueinheit für eine elektrische Lampe mit Außenkolben

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0416705A1 (fr) * 1989-09-08 1991-03-13 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression
US5432399A (en) * 1991-10-14 1995-07-11 Koito Manufacturing Co., Ltd. Discharge lamp apparatus
EP0913365A1 (fr) * 1997-10-27 1999-05-06 Schott Glas Verre à haute résistance thermique pour envelopper des lampes et son utilisation
US20030184211A1 (en) * 2002-03-26 2003-10-02 Brigitte Hueber Lamp bulbs for discharge lamps made from aluminosilicate glass, discharge lamps made with same and method of making same
WO2004107390A1 (fr) * 2003-05-21 2004-12-09 Koninklijke Philips Electronics N.V. Lampe a decharge a haute pression
US20050099128A1 (en) * 2000-05-05 2005-05-12 Telux Lampenrohr Gmbh Alumino Earth-Alkali Silicate Glasses with High Thermal Capacity for Light Bulbs and Use Thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0416705A1 (fr) * 1989-09-08 1991-03-13 Koninklijke Philips Electronics N.V. Lampe à décharge à haute pression
US5432399A (en) * 1991-10-14 1995-07-11 Koito Manufacturing Co., Ltd. Discharge lamp apparatus
EP0913365A1 (fr) * 1997-10-27 1999-05-06 Schott Glas Verre à haute résistance thermique pour envelopper des lampes et son utilisation
US20050099128A1 (en) * 2000-05-05 2005-05-12 Telux Lampenrohr Gmbh Alumino Earth-Alkali Silicate Glasses with High Thermal Capacity for Light Bulbs and Use Thereof
US20030184211A1 (en) * 2002-03-26 2003-10-02 Brigitte Hueber Lamp bulbs for discharge lamps made from aluminosilicate glass, discharge lamps made with same and method of making same
WO2004107390A1 (fr) * 2003-05-21 2004-12-09 Koninklijke Philips Electronics N.V. Lampe a decharge a haute pression

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975975A1 (fr) 2007-03-30 2008-10-01 Patent-Treuhand-Gesellschaft Für Elektrische Glühlampen mbH Unité de construction pour une lampe électrique dotée de pistons extérieurs
DE102007015483A1 (de) 2007-03-30 2008-10-02 Osram Gesellschaft mit beschränkter Haftung Baueinheit für eine elektrische Lampe mit Außenkolben
DE102007015481A1 (de) 2007-03-30 2008-10-02 Osram Gesellschaft mit beschränkter Haftung Baueinheit für eine elektrische Lampe mit Außenkolben
US7977854B2 (en) 2007-03-30 2011-07-12 Osram Gesellschaft Mit Beschraenkter Haftung Component for an electric lamp with outer bulb

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