WO2008089662A1 - Système d'électrodes destiné à une lampe aux halogènure métalliques dotée d'un brûleur en céramique - Google Patents

Système d'électrodes destiné à une lampe aux halogènure métalliques dotée d'un brûleur en céramique Download PDF

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Publication number
WO2008089662A1
WO2008089662A1 PCT/CN2008/000138 CN2008000138W WO2008089662A1 WO 2008089662 A1 WO2008089662 A1 WO 2008089662A1 CN 2008000138 W CN2008000138 W CN 2008000138W WO 2008089662 A1 WO2008089662 A1 WO 2008089662A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
ceramic
rod
metal halide
tungsten
Prior art date
Application number
PCT/CN2008/000138
Other languages
English (en)
Chinese (zh)
Inventor
Zhengming Yang
Ming Zhang
Guosheng Chai
Original Assignee
Cnlight Co., Ltd.
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 CNU2007200503504U external-priority patent/CN201038122Y/zh
Application filed by Cnlight Co., Ltd. filed Critical Cnlight Co., Ltd.
Publication of WO2008089662A1 publication Critical patent/WO2008089662A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0732—Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors

Definitions

  • the invention relates to a ceramic metal halide lamp, in particular to an electrode system of a low power and high efficiency long life ceramic metal halide lamp.
  • the structure of the ceramic metal halide lamp can be seen in Fig. 1: it comprises a ceramic metal halide lamp casing 11 fixed on the lamp cap 14, and a ceramic arc tube 8 is arranged in the ceramic metal halide lamp casing 11, and the ceramic arc tube 8 is symmetrically disposed at both ends. a ceramic sleeve tube 9a, 9b for supporting the electrode coincident with the central axis of the lamp, and a ceramic arc tube 8 is provided.
  • the axially opposite electrodes 5a, 5b are respectively passed through the electrode leads passing through the corresponding side ceramic sleeve tubes 9a, 9b 2a, 2b are connected to the mast or the manifolds la, lb, and the two encapsulating rods 9a, 9b are respectively sealed and fixed by the ceramic or glass crucibles 10a, 10b for airtight sealing and the end portions of the two ceramic sleeves 9a, 9b, respectively.
  • the two masts or the tubes la, lb of the ceramic sleeve tube are respectively fixed on the arc tube holders 12a, 12b, and are respectively electrically connected to the lamp pins 15a, 15b provided on the fixed lamp holder through the brackets, and the ceramic arc tube 8 is filled with Mercury, metal halides and inert gases.
  • Figure 2 is a patented product of a low-power ceramic metal halide lamp electrode system manufactured by General Electric Company of the United States.
  • This electrode system has unique design and excellent performance, but its structure is complex, manufacturing is difficult and costly. Its structure is characterized by: The front end of the thicker mast 1 for hermetic sealing sealing with the ceramic arc tube is welded with the fine molybdenum rod electrode lead 2, and the molybdenum rod lead 2 is tightly wound around the molybdenum rod electrode lead 2, and the molybdenum rod electrode lead is used. 2 The front end is further connected with a thin wire rod 3 wire with a smaller diameter.
  • the tungsten rod electrode 5 is thinner around the front end of the wire rod of the tungsten rod 3 to form a thin electrode of the tungsten coil 5, which constitutes the discharge end of the electrode, and the electrode temperature during operation. Very high (about 3000 ° C), but the tungsten rod 3 wire is very thin, and the heat is very low.
  • the molybdenum rod electrode lead 2 and the molybdenum lead spiral 4 base wound thereon are: 3 ⁇ 4 filled with the porcelain sleeve sleeve 9, sufficient to support the electrode centering stability, and reduce heat to the two ends and through the ceramic sleeve 9' to the periphery Loss, 'Isolation of the condensation of the liquid metal halide condensed in the arc tube 8 against the rear package mast or manifold 1 at the same time.
  • the temperature of the sealing end of the ceramic sleeve tube 9 can be significantly reduced, so that the sealing is safer and more reliable, and at the same time, the temperature of the lamp is increased, and the metal halide in the arc tube can be evaporated. Completely, the performance is greatly improved; in addition, since the heat loss of the ceramic metal halide lamp housing 11 is small, the volume of the bulb can be appropriately increased, and the wall load can be reduced, so that the wall load of the ceramic arc tube 8 housing facing the highest temperature of the arc is carried out. Properly reduce, thereby reducing the temperature and extending the life of the lamp.
  • the electrode system shown in Figure 2 does have many advantages, which plays a big role in improving the performance of the lamp, but its fabrication is complicated and costly. It is also necessary to mention that this structure must allow more metal halide vapor to penetrate.
  • the ceramic sleeve is surrounded by a rugged molybdenum wire lead around the wall of the wall 4 and permanently deposited until the gap between the molybdenum wire lead screw 4 and the inner wall of the ceramic sleeve 9 and the molybdenum rod electrode lead 2 is filled, which is inevitable
  • the various parameters that cause the use of the initial lamp produce a large amplitude change, so it is necessary to improve the structure of the electrode system. Summary of the invention
  • the present invention is provided with a mast or manifold 1 for sealing and fixing with a ceramic sleeve 9 of an arc tube, and the front end of the mast or manifold 1 passes through the electrode lead 2 of the ceramic sleeve 9 Connected to the rear end of the tungsten rod 3 in the arc tube, the front end of the tungsten rod 3 is wound with a tungsten spiral electrode 5, the diameter of the tungsten spiral electrode 5 is smaller than the diameter of the tungsten rod 3, the mast or the manifold 1, the electrode lead 2 and the tungsten
  • the rods 3 are on the same axis, characterized in that the electrode leads 2 passing through the ceramic sleeves 9 are covered with a layer of high thermal resistance and high temperature resistant material 6.
  • the tungsten rod 3 as an electrode rod may also be a tantalum tungsten rod.
  • the electrode system of the present invention may be a three-stage structure or a two-stage structure, and the three-stage structure includes a packaged mast or manifold, a tungsten rod 3 and a molybdenum rod in the arc tube, and a molybdenum rod as the electrode lead 2 Pass through the ceramic sleeve 9 with its ends at the front end of the mast or manifold 1 and the rear end of the tungsten rod 3 Pick up.
  • the two-stage structure is to remove the intermediate section molybdenum rod between the mast or the manifold 1 and the tungsten rod 3 in the arc tube, and extend the tungsten rod 3 backward through the ceramic sleeve 9 to directly connect with the mast or the manifold 1 Keeping the total length of the electrode system constant and the other structures are unchanged, thus forming a two-stage electrode system with a simpler structure.
  • the present invention is coated with a high thermal resistance and high temperature resistant material layer 6 on the outer side of the electrode lead 2 passing through the ceramic sleeve tube 9.
  • the high thermal resistance and high temperature resistant material layer 6 may be a coating layer or sleeve of a high thermal resistance and high temperature resistant material.
  • the high thermal resistance, high temperature resistant material layer 6 is required to not melt at the operating temperature and does not chemically react with the electrodes, the electrode leads, the tantalum encapsulating rods, and the halides filled in the metal halide lamps.
  • Such materials may be selected from various ceramics, quartz or hard glass materials such as A1203, Ti02, Y203, Zr02, SiO2, SiC, Si3N4, BN or the like, or a mixture of such materials.
  • the electrode system of the present invention can make the outer diameter of the electrode lead 2 coated with the high thermal resistance and high temperature resistant material layer close to or slightly smaller than the inner diameter of the ceramic sleeve tube 9 to be passed through in the final stage of the lamp making, so that the electrode lead 2 can be basically It is filled with ceramic sleeves, which not only ensures the electrode is in the position of the lamp axis, but also reduces the penetration of metal halides and mercury vapor into the sleeve tube, thereby further ensuring the stability of the operation of the metal halide lamp.
  • the high thermal resistance and high temperature resistant material layer coated on the electrode lead 2 of the invention has low thermal conductivity, thereby further reducing the loss of radial and axial heat of the electrode system, thereby improving the cold end temperature near the root of the electrode system.
  • the metal halide in the arc tube can be more fully evaporated to improve the performance of the metal halide lamp, and on the other hand, the temperature of the outer end of the ceramic sleeve tube and the sealing portion of the electrode system mast or manifold 1 can be lowered, and the arc tube seal can be improved. Reliability.
  • the electrode lead 2 of the present invention is coated with a material layer having a high thermal resistance and a high temperature resistance, and has a micro gap between the electrode lead 2 and the outer ceramic sleeve tube, so that there is no problem of matching the expansion coefficient.
  • the high thermal resistance and high temperature resistant material layer coated on the electrode lead 2 of the invention can reduce the gap between the outer wall of the electrode lead and the inner wall of the ceramic sleeve tube, thereby reducing the infiltration and retention of metal halide vapor and mercury vapor into the ceramic sleeve tube. Amount, blocking the contact of metal halide with electrode lead 2 and mast or manifold 1, overcoming the drift of color temperature and color coordinates caused by the infiltration and retention of metal halides and mercury vapor, improving the performance of metal halide lamps And service life.
  • Figure 1 is a schematic view of the structure of a ceramic metal halide lamp
  • Figure 2 is a schematic diagram of the electrode system structure of a conventional ceramic metal halide lamp
  • FIG. 3 is a schematic structural view of a two-stage electrode system according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic structural view of a two-stage electrode system according to Embodiment 2 of the present invention (a lead screw is wound around an electrode lead 4)
  • FIG. 5 is a schematic structural view of a three-stage electrode system according to Embodiment 3 of the present invention.
  • Figure 6 is a schematic view showing the structure of a three-stage electrode system according to Embodiment 4 of the present invention (lead-wound around the electrode lead 4)
  • FIG. 7 is a schematic view showing the structure of a two-stage electrode system installed in an arc tube according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic view showing the structure of a three-stage electrode system installed in an arc tube according to Embodiment 3 of the present invention.
  • mast or manifold 1 ( la, lb), electrode lead 2 (2a, 2b), tungsten rod 3 (3a, 3b), lead screw 4 (4a, 4b), tungsten spiral electrode 5 (5a, 5b) , high thermal resistance, high temperature resistant material layer 6 (6a, 6b), ceramic arc tube 8, ceramic sleeve 9 (9a, 9b), solder 10 (10a, 10b), ceramic metal halide lamp housing 11, arc tube holder 12 ( 12a, 12b), support rod 13, base 14, lamp foot 15 (15a, 15b).
  • this embodiment is a two-stage electrode system for a 35W ceramic metal halide lamp.
  • the rear of the electrode system is provided with a mast or a manifold 1 for sealing with a metal halide arc tube.
  • the electrode portion is The front end of the tungsten rod 3 in the arc tube is provided with a spiral electrode 5 wound by a tungsten wire, and the electrode lead 2 passing through the ceramic sleeve tube 9 is a rearward extension of the body of the tungsten rod 3 in the arc tube, and the tungsten rod passing through the ceramic sleeve tube 9
  • the rear end of the electrode lead 2 is connected to the front end of the crucible package rod 1.
  • the high thermal resistance and high temperature resistant material layer 6 which is covered by the tungsten rod electrode lead 2 of the ceramic sleeve 9 is a sleeve sleeved thereon, and the sleeve may be a quartz or hard glass capillary sleeve, or may be used
  • a sleeve made of a ceramic material coated with a sheath may be made of various materials such as A1203, Ti02, ZrO, SiC, SiN, BN, etc., or a mixture thereof.
  • the sleeve is tightly wrapped around the tungsten rod electrode lead 2, And the outer diameter is slightly smaller than the inner diameter of the ceramic sleeve tube 9 supporting the electrode, so that the lead wire can be inserted just inside, and the gap between the lead wire and the inner wall of the sleeve tube is minimized.
  • the diameter of the tungsten rod electrode lead 2 is smaller than that of the mast or the manifold 1, and the diameter of the tungsten wire wound around the spiral electrode 5 is smaller than the diameter of the tungsten rod 3, specifically: the diameter of the mast or the manifold 1 is 0.7 mm, the tungsten rod 3 and its orientation
  • the rear extension tungsten rod electrode lead 2 is directly 0.24 mm, the diameter of the tungsten wire wound around the spiral electrode 5 is 0.13 mm, and the outer diameter of the tungsten rod electrode lead 2 is coated with high thermal resistance and the high temperature resistant material sleeve is 0.7 nm. ! , the same as the outer diameter of the ⁇ sealing rod 1.
  • Fig. 7 is a schematic view showing the structure of the electrode system of the present embodiment in a ceramic arc tube 8.
  • the ceramic arc tube 8 has a spherical bulb shape (also a spherical column shape), and both ends are symmetrically disposed on the same central axis and in the arc tube.
  • the ceramic arc tube 8 is provided with two sets of two-stage electrode system of this example: the mast or the manifold 1 at both ends of the electrode system respectively pass through the side ceramic sleeve End of the tube 9, the end of the ceramic sleeve sleeve is sealed with a ceramic or glass material 10 for hermetic sealing, and the mast or the tube 1 is fixed relative to the ceramic arc tube 8 to extend into the sphere.
  • the front end of the tungsten rod 3 in the arc tube 8 is provided with a spiral electrode 5 made of tungsten wire, and the extension of the rear portion of the tungsten rod 3 is welded through the ceramic sleeve tube 9 to the front end of the mast or the tube 1 which is extended into the sleeve tube, The electrodes of the group electrode system are opposed within the arc tube.
  • the tungsten rod extension passing through the ceramic sleeve 9 is covered with a layer of high temperature resistant and high thermal resistance material 6, and only the gap between the outer wall and the inner wall of the ceramic sleeve tube is allowed to allow the dynamic fit.
  • this embodiment is a two-stage electrode system for a 35W ceramic metal halide lamp.
  • the rear of the electrode system is provided with a mast or a manifold 1 for sealing with a metal halide arc tube.
  • the electrode portion is a spiral electrode 5 formed by winding a thin tungsten wire at the front end of the tantalum tungsten rod 3, and the electrode lead 2 passing through the ceramic sleeve tube 9 is a rearward extension of the body of the tantalum tungsten rod 3 in the arc tube 8, passing through
  • the rear end of the tungsten rod electrode lead 2 of the ceramic sleeve tube is welded to the front end of the mast or the tube 1 which is extended into the sleeve.
  • the tungsten rod electrode lead 2 of the present example is wound with a lead spiral 4, and the lead spiral can be wound by a wire such as W, Mo, Ta, Ni, etc., and the lead spiral 4 is coated with high thermal resistance and resistance.
  • a high temperature coating 6 the coating is tightly wrapped around the lead spiral 4, the thickness of the coating 6 filling at least the spiral groove of the outer wall of the lead screw 4, the outer diameter of which is the same or slightly larger than the diameter of the mast or the manifold 1, but Slightly less than the support
  • the inner diameter of the ceramic sleeve 9 of the electrode is such that the lead is just inserted therein and the gap between the lead and the inner wall of the sleeve is minimized.
  • the outer layer of the material layer coated with high temperature resistance and high thermal resistance is coated to make the electrode lead spiral wall surface and the high temperature resistant and high heat resistant material. The layers fit more firmly and tighter, reducing the gap.
  • the high temperature resistant and high thermal resistance coating 6 can be selected from various refractory and high thermal resistance insulating materials, such as A1203, Ti02, ZrO, SiC, SiN, BN or a mixture thereof;
  • the diameter of the mast or manifold 1 is 0.7 mm
  • the diameter of the tungsten rod 3 and its rearward extension tungsten rod electrode lead 2 is 0.24 mm
  • the diameter of the molybdenum wire wound around the lead screw 4 is 0.12 mm.
  • the outer diameter after coating the high thermal resistance and high temperature resistant coating 6 is 0.7 mm
  • the diameter of the tungsten wire wound around the spiral electrode 5 is 0.13.
  • this embodiment is a three-stage structure electrode system used in a 35W ceramic metal halide lamp, and a mast or a manifold 1 for sealing with a metal halide arc tube is provided at the rear end, and an electrode in the arc tube 8 is provided.
  • a tungsten wire spiral electrode 5 is wound around the front end of the tantalum tungsten rod 3 electrode wire, and the electrode lead 2 passing through the ceramic sleeve tube 9 is a molybdenum welded at both ends to the front end of the mast or the manifold 1 and the rear end of the tantalum tungsten rod 3, respectively.
  • Rod electrode lead is a molybdenum welded at both ends to the front end of the mast or the manifold 1 and the rear end of the tantalum tungsten rod 3, respectively.
  • the high thermal resistance and high temperature resistant material layer 6 which is covered by the molybdenum rod electrode lead 2 of the ceramic sleeve 9 is a sleeve sleeved thereon, and the sleeve may be a quartz or hard glass capillary sleeve, or may be used
  • a sleeve made of a ceramic material coated with a sheath may be made of various materials such as A1203, Ti02, ZrO, SiC, SiN, BN, etc., which are refractory and have high thermal resistance.
  • the sleeve is tightly wrapped around the molybdenum rod electrode lead 2, and has an outer diameter slightly smaller than the inner diameter of the ceramic sleeve sleeve 9 supporting the electrode, so that the electrode lead can be inserted just inside, and the electrode lead and the inner wall of the sleeve tube are minimized. gap.
  • the diameter of the molybdenum rod electrode lead 2 is smaller than that of the mast or the manifold 1 , which is larger than the tantalum tungsten rod 3 , and the tungsten wire (twisted tungsten wire) wound around the tungsten spiral electrode 5 has a smaller diameter than the diameter of the tantalum tungsten rod 3 , and the molybdenum rod electrode lead 2
  • the outer diameter of the outer layer coated with high thermal resistance and high temperature resistant material 6 is the same as the outer diameter of the mast or manifold 1. Specifically, the diameter of the mast or manifold 1 is 0.7 mm, and the diameter of the molybdenum electrode lead 2 is 0.4 mm.
  • the diameter of the tungsten rod 3 is 0.18 mm
  • the diameter of the tungsten wire wound around the tungsten spiral electrode 5 is 0.13 mm
  • the molybdenum rod electrode lead 2 is coated with high heat.
  • the outer diameter of the resistance and high temperature resistant casing is 0.7mm.
  • Figure 8 is a schematic view showing the structure of the electrode system of the present embodiment in a ceramic arc tube 8.
  • the ceramic arc tube 8 has a spherical bulb shape (also a spherical column shape), and the both ends are symmetrically disposed on the same central axis and in the arc tube.
  • the ceramic arc tube 8 is provided with two sets of three-stage electrode system of this example: the mast or the manifold 1 at both ends of the electrode system respectively pass through the side ceramic sleeve
  • the end of the sleeve 9 and the end of the ceramic sleeve sleeve are sealed with a ceramic or glass solder 10 for hermetic sealing, and the mast or manifold 1 is fixed relative to the ceramic arc tube 8, with a mast or
  • the molybdenum rod electrode lead 2 connected to the manifold 1 passes through the ceramic sleeve sleeve 9, and the tungsten rod 3 connected to the molybdenum rod electrode lead 2 and the tungsten spiral electrode 5 at the end thereof extend into the inner cavity of the spherical arc tube 8, two groups The electrodes of the electrode system are opposite within the arc tube.
  • FIG. 1 is a schematic view showing the structure of a 35W ceramic metal halide lamp using the electrode system of the present embodiment, the masts or manifolds la, lb extending from the ceramic sleeve tube are respectively fixed on the arc tube holders 12a, 12b in the ceramic metal halide lamp housing 11, and They are electrically connected to the lamp pins 15a, 15b provided on the fixed base 14 by brackets, respectively, and the arc tube 8 is filled with mercury, a metal halide and an inert gas.
  • this example is a three-stage electrode system for a 35W ceramic metal halide lamp.
  • the rear part is provided with a mast or a manifold 1 for sealing with a metal halide arc tube.
  • the electrode portion is a tungsten rod.
  • the front end is wound with a tungsten spiral electrode 5, and the electrode lead 2 is a molybdenum rod electrode lead 2 which is respectively connected to the front end of the mast or the manifold 1 and the rear end of the tungsten rod 3 at both ends.
  • the molybdenum rod electrode lead 2 is wound with a lead screw 4, and the bow I-line spiral 4 can be wound with a wire such as W, Mo, Ta, Ni, etc., and the lead spiral 4 is coated with high heat.
  • a resistive, high temperature resistant coating 6 the coating is tightly wrapped around the lead screw 4, the thickness of the coating 6 is at least filled with the spiral groove of the outer wall of the lead screw 4, and the outer diameter is the same as the diameter of the mast or the manifold 1
  • the inner diameter of the ceramic sleeve tube 9 is smaller than the support electrode so that the lead wire can be inserted just inside, and the gap between the lead wire and the inner wall of the sleeve tube is minimized.
  • the coating 6 can be selected from various refractory and high thermal resistance insulating materials, such as A1203, Ti02, ZrO, SiC, SiN, BN or a mixture thereof; the molybdenum rod electrode lead 2 is thinner than the mast or the tube 1 and thicker than the tungsten rod 3, the diameter of the mast or the tube 1 is 0.7 mm, and the diameter of the molybdenum rod electrode 2 is 0.3. Mm, the diameter of the molybdenum wire of the wound lead screw 4 is 0.18 mm, the diameter of the tungsten rod 3 is 0.15 mm, the diameter of the tungsten wire of the spiral electrode 5 at the front end thereof is 0.13 mm, and the lead spiral 4 is coated with high thermal resistance and high temperature resistance coating. The diameter of the layer after the layer is 0.7mm

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  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

L'invention concerne un système d'électrodes hautement efficace présentant une longue durée d'utilisation. Ce système est destiné à une lampe aux halogènures métalliques. Ce système comprend : une tige ou un tube en niobium (1) fixé étanche à l'intérieur d'un manchon (9) de brûleur en céramique; une tige en tungstène (3) reliée, à son extrémité arrière, à l'extrémité avant de la tige ou du tube en niobium (1) par une borne d'électrode (2); une électrode spiralée en tungstène (5) enroulée sur l'extrémité avant de la tige en tungstène (3), le diamètre de l'électrode spiralée en tungstène (5) étant inférieur à celui de la tige en tungstène (3); la tige ou le tube en niobium, la borne d'électrode et la tige en tungstène étant dans le même axe; la borne d'électrode (2) s'étendant dans le manchon en céramique étant enrobée d'une couche de matière (6) présentant une résistance thermique élevée et résistant à des températures élevées. La couche (6) permet de réduire la perte de chaleur de l'électrode, d'augmenter la température de la borne froide l'extrémité de l'électrode, de favoriser une évaporation suffisante des halogènures métalliques présents dans le tube, de réduire l'écart entre la borne d'électrode et le manchon en céramique, d'empêcher que les vapeurs d'halogénures métalliques et de mercure ne pénètrent dans le manchon en céramique et ne s'y stockent, et d'augmenter la stabilité et la durée d'utilisation d'une lampe aux halogènure métalliques.
PCT/CN2008/000138 2007-01-19 2008-01-18 Système d'électrodes destiné à une lampe aux halogènure métalliques dotée d'un brûleur en céramique WO2008089662A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200720047632.9 2007-01-19
CN200720047632 2007-01-19
CNU2007200503504U CN201038122Y (zh) 2007-04-16 2007-04-16 一种高效长寿命陶瓷金卤灯
CN200720050350.4 2007-04-16

Publications (1)

Publication Number Publication Date
WO2008089662A1 true WO2008089662A1 (fr) 2008-07-31

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PCT/CN2008/000138 WO2008089662A1 (fr) 2007-01-19 2008-01-18 Système d'électrodes destiné à une lampe aux halogènure métalliques dotée d'un brûleur en céramique

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WO (1) WO2008089662A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001236926A (ja) * 2000-02-21 2001-08-31 Ushio Inc 放電ランプ
US6404130B1 (en) * 1999-02-26 2002-06-11 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Metal halide lamp with fill-efficient two-part lead-through
WO2004032181A2 (fr) * 2002-10-02 2004-04-15 Philips Intellectual Property & Standards Gmbh Lampe a decharge de gaz haute pression
JP2004179007A (ja) * 2002-11-27 2004-06-24 Iwasaki Electric Co Ltd 金属蒸気放電灯
US6774566B2 (en) * 2001-09-19 2004-08-10 Toshiba Lighting & Technology Corporation High pressure discharge lamp and luminaire
WO2006077516A2 (fr) * 2005-01-19 2006-07-27 Koninklijke Philips Electronics N.V. Lampe a decharge haute pression

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6404130B1 (en) * 1999-02-26 2002-06-11 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Metal halide lamp with fill-efficient two-part lead-through
JP2001236926A (ja) * 2000-02-21 2001-08-31 Ushio Inc 放電ランプ
US6774566B2 (en) * 2001-09-19 2004-08-10 Toshiba Lighting & Technology Corporation High pressure discharge lamp and luminaire
WO2004032181A2 (fr) * 2002-10-02 2004-04-15 Philips Intellectual Property & Standards Gmbh Lampe a decharge de gaz haute pression
JP2004179007A (ja) * 2002-11-27 2004-06-24 Iwasaki Electric Co Ltd 金属蒸気放電灯
WO2006077516A2 (fr) * 2005-01-19 2006-07-27 Koninklijke Philips Electronics N.V. Lampe a decharge haute pression

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