EP2647031A1 - Procédé de fabrication d'un bobinage pour la fabrication d'électrodes de lampes à décharge, bobinage pour la fabrication d'électrodes de lampes à décharge ainsi que procédé de fabrication d'une électrode pour lampes à décharge - Google Patents

Procédé de fabrication d'un bobinage pour la fabrication d'électrodes de lampes à décharge, bobinage pour la fabrication d'électrodes de lampes à décharge ainsi que procédé de fabrication d'une électrode pour lampes à décharge

Info

Publication number
EP2647031A1
EP2647031A1 EP12711371.0A EP12711371A EP2647031A1 EP 2647031 A1 EP2647031 A1 EP 2647031A1 EP 12711371 A EP12711371 A EP 12711371A EP 2647031 A1 EP2647031 A1 EP 2647031A1
Authority
EP
European Patent Office
Prior art keywords
wire
core wire
winding
primary
longitudinal axis
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.)
Withdrawn
Application number
EP12711371.0A
Other languages
German (de)
English (en)
Inventor
Jarmila BILIKOVA
Gerald Haemmer
Achim Hilscher
Pavel KNOLL
Alena MICHALIKOVA
Petr RUMPERTESZ
Josef Schlecht
Ales VOJKUVKA
Klaus Weingärtner
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.)
Osram GmbH
Original Assignee
Osram GmbH
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
Application filed by Osram GmbH filed Critical Osram GmbH
Publication of EP2647031A1 publication Critical patent/EP2647031A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/18—Assembling together the component parts of electrode systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H01F41/069—Winding two or more wires, e.g. bifilar winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/50—Magnetic means for controlling the discharge
    • 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
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0672—Main electrodes for low-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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr

Definitions

  • the invention relates to methods for producing a winding for producing an electrode for discharge lamps
  • Electrode for discharge lamps are Electrode for discharge lamps.
  • the emitter amount is aimed at on the
  • US 2004/0070324 A2 proposes to provide a double or triple helical wire structure from which the emitter material, e.g. is a (Ba, Ca, Sr) O material (deposited as (Ba, Ca, Sr) C03 material). Due to the volume increase achieved by the helical wire structure, a larger amount of emitter material can be held between and on the wires of the helical wire structure. In this case, already in the primary spiral structure, a larger radial distance of a wrapping wire to a
  • an additional, lost core wire is provided, which runs parallel to the primary core wire, so as to total a core with one of the diameters of the primary core wire and the lost
  • the invention provides methods for producing a winding for producing an electrode for discharge lamps and windings for producing an electrode for
  • the invention provides a method for producing a
  • Discharge lamps ready comprising the steps:
  • a wrapping wire e.g. is made of an electrically conductive material to the
  • the primary core wire and the wrapping wire are made of, for example, a high heat resistant material such as tungsten (W).
  • W tungsten
  • the jacket wire, which will be explained later as a lost sheathed wire is, for example, also from a highly heat-resistant material, which, however, compared to the
  • the lost barbed wire can also be made of iron (Fe).
  • Heat treatment e.g. Glow
  • the lower resistance of the material of the cladding wire to etchants makes it possible to use this e.g. via dissolving in one
  • Solvent / etchant e.g. in an acid bath, of which
  • the acid for the acid bath e.g. uses an acid mixture, e.g. the acid described in DE2933430C2, which contains 30 to 60% by weight of nitric acid and 20 to 50% by weight, e.g. 28 to 42% by weight, sulfuric acid and
  • Umwicklungsdrahts serves to the primary core wire, wherein after the removal (for example, detachment) of the jacket wire from the
  • the emitter material may in this case be an emitter material as described, for example, in the abovementioned US 2004/0070323 A1.
  • the jacket wire is wound along the primary core wire, ie the jacket wire is, for example, helically wound around the primary core wire, wherein the windings of the jacket wire, for example, do not overlap or evenly
  • the primary core wire sheath thereby obtained, formed by the sheath wire has a substantially equal thickness, wherein the primary core wire (substantially) is arranged centrally or centrally. Therefore, the wrapping wire always has substantially the same radial distance to the
  • the diameter of the jacket wire can be made very large, creating a correspondingly large radial distance between the
  • the jacket wire is e.g. with substantially constant helical pitch helically around the
  • the jacket wire is e.g. wound directly on the primary core wire.
  • the wrapping wire is e.g. made of an electrically conductive and, as mentioned above, also made of highly heat-resistant material, e.g. from the same material as the
  • Primary core wire and thus e.g. made of tungsten (W).
  • W tungsten
  • Wrap wire has e.g. a smaller diameter than the primary core wire, e.g. a smaller by at least 50%
  • the wrapping wire is usually helical, for example, without overlapping of the turns or with uniform overlap of the turns to wrapped around the primary core wire sheath.
  • Wrap wire is e.g. helical with im
  • Cladding wire the windings of the cladding wire in the direction of the longitudinal axis of the primary core wire immediately adjacent
  • each other preferably arranged adjacent to each other.
  • Axial spacing of the turns of the cladding wire in the direction of the longitudinal axis of the primary core wire is.
  • the axial distance is e.g. greater than the diameter of the wrapping wire, e.g. more than twice as big.
  • Primary core wire sheath is wound, i. that the
  • Primary core wire has a different sign compared to the helical pitch of the Umwicklungsdrahts relative to the Primärkernraht, the absolute size of the
  • Helical pitch may be different. So can ensure that the wrapping wire does not come to rest in an area where two adjacent ones are
  • Radial distance to the primary core wire is less than a diameter of the jacket wire.
  • a particularly uniform radial distance of the wrapping wire to the primary core wire can be provided.
  • the invention further provides a method for producing a secondary winding for producing an electrode for
  • Discharge lamps ready comprising the steps:
  • the secondary core wire is usually a lost wire, corresponding to the cladding wire, so that it according to the cladding wire from a relative to the material of
  • the secondary core wire is e.g. of the same material as the cladding wire and is thus e.g. made of molybdenum (Mo).
  • the primary winding is in the longitudinal direction of her
  • Primary core wire usually helical, e.g. with constant helical pitch, wound around the secondary core wire, the primary winding e.g. is wound directly on the secondary core wire.
  • Primary winding are along the longitudinal axis of the Secondary core wire, for example, arranged at an axial distance from each other, which, for example, is selected such that the
  • Primary winding around the secondary core wire (this slope corresponds to the axial length of a turn of the primary winding around the secondary core wire in the longitudinal direction of the secondary core wire) by the diameter of the primary winding per se (measured transverse to the longitudinal axis of the primary core wire) is less than 2.
  • Heat treatment e.g. Annealing (wire material) voltages can be reduced in the secondary winding, and then in a further step, the secondary core wire and the
  • Sheathed wire are removed, e.g. by dissolving and thereby releasing (e.g., by acid) the secondary core wire and the cladding wire from the (residual) winding structure formed by the primary core wire and the wrapping wire. On this or in the cavities of this remaining (residual) winding structure of the secondary winding can
  • Emitter material can be applied, whereby a winding structure / structure is achieved, which can be used as an electrode for a discharge lamp.
  • the discharge lamp may otherwise be e.g. as described in US 2004/0070324 A1, and can thus be used e.g. a
  • the invention provides a method for
  • Electrode for discharge lamps ready, comprising the
  • the tertiary core may also be a tertiary core wire and may be e.g. from one as above for the secondary core wire
  • the tertiary nucleus is not one
  • reusable component e.g., a winding mandrel
  • Carbide such as e.g.
  • the secondary winding is e.g. in the longitudinal direction of its secondary core wire helically, e.g. with substantially constant helical pitch, wound thereacross the tertiary core, e.g. wound directly on the tertiary core, wherein the windings can be arranged adjacent to each other or at an axial distance (in the longitudinal direction of the tertiary core) from each other.
  • Secondary core wire and the tertiary core formed as (lost) tertiary core wire in the manner described above for the sheath wire and the secondary core wire of the (residual) winding structure of primary core wire and wrapping wire are removed, and then emitter material can be introduced into the cavities of this residual winding structure (Residual) winding structure are applied, thereby to create a winding structure, as such as
  • Tertiary core for example, is the one around the tertiary core as above described wound secondary winding of the tertiary core in the longitudinal direction withdrawn, and then remove the sheath wire and the secondary core wire in the manner explained above, ie, for example, dissolve via acid bath.
  • the diameter of the primary core wire can be constant over its entire length. The same applies to the diameter of the cladding wire, the diameter of the wrapping wire, the diameter of the secondary core wire and the diameter of the tertiary core (wire) s.
  • a primary winding for producing an electrode for discharge lamps with a primary core wire having a longitudinal axis and from a
  • cladding wire made of, for example, a material discussed above wound around the primary core wire along the longitudinal axis of the primary core wire (e.g., helically as discussed above) such that the cladding wire surrounds the primary core wire
  • Primary core wire sheath forms a wrapping wire (made of, for example, a material and a structure as discussed above) that extends around the primary core wire sheath at a radial distance from the primary core wire along the longitudinal axis of the primary core wire sheath
  • Primary core wire is wound (for example, helically as explained above), also a secondary winding for producing an electrode for discharge lamps, with a
  • Secondary core wire made of, for example, one as discussed above
  • the turns of the jacket wire in the direction of the longitudinal axis of the primary core wire can be arranged directly adjacent to one another, preferably adjacent to one another. Further, in the primary winding, the turns of the wrapping wire in the direction of the longitudinal axis of the primary core wire may be arranged at an axial distance from each other which is greater than an axial distance of the turns of the
  • Cladding wire in the direction of the longitudinal axis of the primary core wire is.
  • the wrapping wire may also be in the opposite direction to the
  • Primary core wire to be wound around the primary core wire.
  • the respective core wire or core (primary core wire,
  • Sheathed wire and / or the wrapping wire is / are e.g. made of an electrically conductive material.
  • the respective core wire and / or the sheath wire and / or the wrapping wire are e.g. from a metal material.
  • the invention further provides:
  • Discharge lamp comprising the steps: making a like above explained secondary winding by the associated method as explained above, removing the secondary core wire and the cladding wire (eg, in a manner as described above) to form corresponding emitter material receiving cavities in the residual winding structure formed by the primary core wire and the wrapping wire;
  • Emitter material into the emitter material receiving cavities e.g. the emitter material is introduced at least or substantially exclusively into the cavities created by the removal of the secondary wire and the cladding wire.
  • a discharge lamp comprising the steps of producing a tertiary winding as described above by the method as discussed above, removing (e.g., in a manner as described above) the secondary core wire, the
  • Tertiary cores (wires) and the cladding wire to form respective emitter material receiving cavities in the one formed by the primary core wire and the wrapping wire
  • Residual winding structure Residual winding structure, and introducing emitter material (e.g., as described above) into the emitter material receiving cavities.
  • Figure 1 is a schematic perspective view of a
  • Figure 2 is a schematic perspective view of a
  • FIG. 3a shows a schematic cross-sectional view of a tertiary winding according to an embodiment of the invention
  • FIG. 3b shows a schematic perspective view of a tertiary winding
  • Figure 4 is a schematic sectional side view of a discharge lamp according to an embodiment of the invention.
  • FIG. 5 is a schematic flow diagram of a method of manufacturing an electrode according to an embodiment of the invention.
  • the same reference numerals are used for the same or similar features.
  • FIG. 1 shows a primary winding 1 for producing an electrode for discharge lamps according to a first embodiment
  • the primary winding 1 comprises: a primary core wire 3 having a longitudinal axis 5 and made of an electrically conductive, highly heat-resistant metal material (here W), a cladding wire 7 made of an electrically conductive, highly heat-resistant metal material (here Mo), of the Material of the
  • Primary core wire 3 is different and is less resistant to etchants than the material of
  • Primary core wire 3 is wound, so that the jacket wire 7 surrounding the primary core wire 3 primary core wire sheath 9th forms, and a wrapping wire 11, the
  • the turns of the cladding wire 7 of the primary core wire sheath 9 are arranged axially adjacent to one another in the direction of the longitudinal axis 5 of the primary core wire 3.
  • the turns of the Umwicklungsdrahts 11 are arranged in the direction of the longitudinal axis 5 of the primary core wire 3 in an axial distance AD from each other.
  • the turns of the jacket wire 7 are in the direction of the longitudinal axis 5 of the primary core wire third
  • Helix has a slope with a sign other than that formed by the turns of the wrapping wire 11
  • FIG. 2 shows a perspective view of a
  • Discharge lamps comprising a secondary core wire 23, which consists of an electrically conductive, high heat resistant
  • Metal material here Mo
  • the wrapping wire 11 is wound primarily helically around the primary core wire 3 and secondarily (in
  • the diameter WD of the primary winding 1 per se is set smaller than 2 (S / WD ⁇ 2).
  • Figure 3a shows in cross-section a tertiary winding 31 which has been obtained by the secondary winding 21 shown in Figure 2 being in the longitudinal direction (i.e., in the direction of the longitudinal axis 25) of the secondary core wire 23 in turn
  • Tertiary core (wire) 33 was wound, along the longitudinal axis 35 (in Figure 3a perpendicular to the image surface) of the tertiary core (wire) s 33rd
  • the tertiary core (wire) 33 is made of an electrically conductive, highly heat-resistant metal material (in case of lost Tertiary core wire, for example Mo and in the case of a reusable tertiary core (machine core or machine mandrel) such as cemented carbide), the material of the primary core wire 3 and the wrapping wire 11th
  • Tertiary core (wire) 33 of the (residual) winding structure which is formed by the primary core wire 3 and the wrapping wire 11 and which is more resistant to this etching solution to remove via up and release.
  • cavities 7-23 with the exception (but not limited to this exception) of the cavity 33 (see FIG. 3a) formed by the tertiary core (wire) 33, which has one of the shape of the jacket wire 7,
  • Secondary wire 23 and possibly the tertiary core (wire) s 33 of the secondary winding 23 and the tertiary winding 31 have corresponding hollow shape, then together with otherwise already between the primary core wire 3 and the turns of
  • Umwicklungsdrahts 11 present cavities with a
  • Emitter material 37 (shown in Figure 3a in a dot-and-dash line) which is e.g. is a (Ba, Ca, Sr) C03 material.
  • the mentioned (residual) winding structure of the primary core wire 3 and the wrapping wire 11 forms
  • FIG. 3b shows in the right-hand part of the figure such a manner with emitter material 37
  • Oxide material to convert.
  • the conversion into the oxide usually takes place only when the later lamp is pumped off, but before it is sealed (fused).
  • the oxides are hygroscopic. Therefore they are not stable in air.
  • the carbonate is applied and only when the lamp has been pumped off and usually rinsed at least 1 time is
  • Primary core wire 3 and wrapping wire 11 may be in a such as e.g. 4 in longitudinal section are used as the electrode 102, the discharge lamp 100 shown in FIG. 4 having two such electrodes 102, 104. Otherwise, the illustrated in Figure 4
  • Discharge lamp 100 e.g. such as the discharge lamp described in US 2004/0070324 AI be constructed and e.g.
  • a glass envelope 106 the inner surface 108 of which is coated with a phosphor-containing layer 110 and the interior of which is coated with a noble gas (such as argon or
  • Electrodes 102, 104 are held on sockets 112 and 114, respectively, over which the power supply of the electrodes 102, 104 extends.
  • sockets 112 and 114 at both longitudinal ends are also any other lamp shapes into consideration, such as lamps with one-sided base, for example, have one or more attached to each other curved tubes.
  • FIG. 5 shows a flow chart of a method according to the invention for producing an electrode, such as, for example, the electrode 102 or 104 shown in FIG. 5
  • Discharge lamp such as that shown in FIG.
  • the method according to Figure 5 comprises the following steps: (S200) providing a primary core wire (such as the primary core wire 3 of Figures 1-3) having a longitudinal axis and is made of an electrically conductive material, (S210) winding a cladding wire (such as For example, the cladding wire 7 of Figures 1-3) around the primary core wire around along the following steps: (S200) providing a primary core wire (such as the primary core wire 3 of Figures 1-3) having a longitudinal axis and is made of an electrically conductive material, (S210) winding a cladding wire (such as For example, the cladding wire 7 of Figures 1-3) around the primary core wire around along the
  • Primary core wire along the longitudinal axis of the primary core wire, whereby a primary winding (such as the primary winding 1 shown in Figures 1-3) is achieved.
  • the method according to Figure 5 further comprises the steps of: (S230) providing a secondary core wire, e.g. the secondary core wire 23 shown in Figs. 2 and 3 having a longitudinal axis 25, and (S240) spirally winding the primary winding longitudinally of the primary core wire around the secondary core wire along the longitudinal axis of the primary core wire
  • Secondary core wire whereby a secondary winding (such as the secondary winding 21 shown in Figures 2 and 3) is achieved.
  • the secondary winding can be subjected to a heat treatment (eg, annealing treatment) by winding occurring material stresses in the primary core wire and in the
  • the method according to Figure 5 further comprises the steps of: (S250) providing a tertiary core (wire), e.g. of the tertiary core (wire) 33 shown in FIG.
  • Tertiary cores (wires), whereby a tertiary winding (such as the tertiary winding 31 shown in Figure 3a) is achieved.
  • the method according to FIG. 5 further comprises the steps of: (S270) removing the cladding wire, the secondary core wire and the tertiary core wire from the (residual) winding structure comprising the primary core wire and the winding wire to form corresponding (emitter material) ) Receiving cavities between the primary core wire and the
  • Sheathed wire and the secondary core wire can the
  • Tertiary core wire is not usually removed), to material stresses occurring in the winding due to the winding
  • the method according to Figure 5 further comprises the steps of: (S280) introducing an emitter material, such as e.g. the above-explained emitter material 37, in the emitter material receiving cavities and possibly also between the otherwise between the primary core wire and the wrapping wire
  • the emitter material may have to be subjected to a further treatment step, eg an activation step.
  • a further treatment step eg an activation step.
  • step (S290) said (Ba, Ca, Sr) C03 emitter material in a step (S290), the winding structure provided with the emitter material, e.g. incorporated in a discharge lamp (fluorescent lamp) and then in a step (S300) by supplying power to the
  • Winding structure which heats up, a
  • Winding structure with the thus activated emitter material ultimately forms the electrode, such as e.g. the electrode 102 or 104 in the discharge lamp 100 shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un bobinage pour la fabrication d'électrodes de lampes à décharge, un bobinage pour la fabrication d'électrodes de lampes à décharge ainsi qu'un procédé de fabrication d'une électrode pour lampes à décharge. À cette fin, un procédé de fabrication d'un bobinage primaire pour la fabrication d'une électrode de lampes à décharge comprend les étapes suivantes : fournir un fil de noyau primaire (3) qui possède un axe longitudinal (5) et est fabriqué dans un matériau électroconducteur ; enrouler un fil d'enveloppe (7) autour du fil de noyau primaire (3) le long de l'axe longitudinal (5) du fil de noyau primaire (3), si bien que le fil d'enveloppe (7) forme une enveloppe de fil de noyau primaire (9) qui entoure le fil de noyau primaire (3) ; enrouler un fil d'enroulement (11) autour de l'enveloppe de fil de noyau primaire (9), à une distance radiale (RD) par rapport au fil de noyau primaire (3), le long de l'axe longitudinal (5) du fil de noyau primaire (3).
EP12711371.0A 2011-04-01 2012-03-13 Procédé de fabrication d'un bobinage pour la fabrication d'électrodes de lampes à décharge, bobinage pour la fabrication d'électrodes de lampes à décharge ainsi que procédé de fabrication d'une électrode pour lampes à décharge Withdrawn EP2647031A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011006620A DE102011006620A1 (de) 2011-04-01 2011-04-01 Verfahren zum Herstellen einer Wicklung zur Herstellung von Elektroden für Entladungslampen, Wicklung zur Herstellung von Elektroden für Entladungslampen sowie Verfahren zur Herstellung einer Elektrode für Entladungslampen
PCT/EP2012/054356 WO2012130608A1 (fr) 2011-04-01 2012-03-13 Procédé de fabrication d'un bobinage pour la fabrication d'électrodes de lampes à décharge, bobinage pour la fabrication d'électrodes de lampes à décharge ainsi que procédé de fabrication d'une électrode pour lampes à décharge

Publications (1)

Publication Number Publication Date
EP2647031A1 true EP2647031A1 (fr) 2013-10-09

Family

ID=45922663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12711371.0A Withdrawn EP2647031A1 (fr) 2011-04-01 2012-03-13 Procédé de fabrication d'un bobinage pour la fabrication d'électrodes de lampes à décharge, bobinage pour la fabrication d'électrodes de lampes à décharge ainsi que procédé de fabrication d'une électrode pour lampes à décharge

Country Status (5)

Country Link
US (1) US20140111080A1 (fr)
EP (1) EP2647031A1 (fr)
CN (1) CN103460334A (fr)
DE (1) DE102011006620A1 (fr)
WO (1) WO2012130608A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202200989A (zh) * 2020-03-13 2022-01-01 美商應用材料股份有限公司 用於檢查燈的設備及方法
US20230017852A1 (en) * 2020-03-13 2023-01-19 Applied Materials, Inc. Lamp filament having a pitch gradient and method of making

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2273762A (en) * 1934-04-17 1942-02-17 Hartford Nat Bank & Trust Co Incandescible cathode

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2218345A (en) * 1935-04-10 1940-10-15 Spaeth Charles Incandescent lamp
US2306925A (en) * 1941-07-29 1942-12-29 Gen Electric Electrode and its fabrication
GB733853A (en) * 1950-12-18 1955-07-20 Hermann Eduard Krefft Improvements in or relating to electrodes for gaseous discharge lamps
US3356883A (en) * 1964-12-27 1967-12-05 Sylvania Electric Prod Florescent lamp having electrodes comprising a tubular braid and an additional wire coiled about the same space
DE2933430A1 (de) 1979-08-17 1981-03-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Verfahren zur rueckgewinnung von molybdaen und mischsaeure aus verbrauchten mischsaeurebeizloesungen
JPS5749145A (en) * 1980-09-08 1982-03-20 Matsushita Electronics Corp Manufacture of electrode coil of fluorescent lamp
US4499401A (en) * 1983-03-03 1985-02-12 General Electric Company Triple coil incandescent filament
US5357167A (en) * 1992-07-08 1994-10-18 General Electric Company High pressure discharge lamp with a thermally improved anode
JP3324584B2 (ja) * 1999-10-20 2002-09-17 松下電器産業株式会社 放電灯の製造方法
US6621219B2 (en) * 2000-12-28 2003-09-16 General Electric Company Thermally insulating lead wire for ceramic metal halide electrodes
AT410150B (de) 2001-06-05 2003-02-25 Jenbacher Ag Zündkerze einer brennkraftmaschine
US20040070324A1 (en) 2002-02-21 2004-04-15 Lisitsyn Igor V. Fluorescent lamp electrode for instant start and rapid start circuits
CN201673889U (zh) * 2010-05-21 2010-12-15 湖州太箭照明有限公司 新型复合灯丝

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2273762A (en) * 1934-04-17 1942-02-17 Hartford Nat Bank & Trust Co Incandescible cathode

Also Published As

Publication number Publication date
US20140111080A1 (en) 2014-04-24
DE102011006620A1 (de) 2012-10-04
WO2012130608A1 (fr) 2012-10-04
CN103460334A (zh) 2013-12-18

Similar Documents

Publication Publication Date Title
DE69310823T2 (de) Hochdruckentladungslampe mit einer Anode mit verbessertem thermischen Verhalten und Verfahren zur deren Herstellung
DE69804192T2 (de) Hochdruckentladungslampe mit uv-verstärker
DE2035654B2 (de) Verfahren zur Herstellung von Verbundsupraleitern
DE2718642C2 (de) Elektrode für eine Hochdruck-Metallhalogenidlampe
EP2779258B1 (fr) Monofilament pour la fabrication d&#39;un fil supraconducteur Nb3Sn
EP2647031A1 (fr) Procédé de fabrication d&#39;un bobinage pour la fabrication d&#39;électrodes de lampes à décharge, bobinage pour la fabrication d&#39;électrodes de lampes à décharge ainsi que procédé de fabrication d&#39;une électrode pour lampes à décharge
US2394474A (en) Coiled filament or cathode and its manufacture
US3736458A (en) Filamentary electrode and fabrication thereof
WO2001035442A1 (fr) Lampe a decharge avec support d&#39;electrode
WO2001035436A1 (fr) Lampe a decharge comportant un porte-electrode
DE19527653A1 (de) Elektrodenwendel für Entladungslampen und Verfahren zur Herstellung einer derartigen Elektrodenwendel
DE3305468C2 (fr)
DE112008001624T5 (de) Hochintensitätsentladungslampe mit verbesserten Dimmeigenschaften
WO2013017304A1 (fr) Lampe à décharge à haute pression avec aide à l&#39;amorçage
DE1639510B1 (de) Elektronenemittierende Elektrode fuer Gasentladungslampen
DE838797C (de) Kathode fuer elektrische Entladungsvorrichtungen
DE2804752A1 (de) Niederdruckgasentladungslampe und verfahren zu ihrer herstellung
DE2404362B1 (de) Heizkörper für eine indirekt geheizte Kathode
DE665803C (de) Elektrische Entladungslampe mit durch Einbauteile bewirktem wendelfoermigem Entladungsweg
DE640336C (de) Verfahren zur Herstellung von Hohldrahtleuchtkoerpern fuer elektrische Gluehlampen
AT146302B (de) Aktivierte Glühkathode.
DE868319C (de) Heizelement fuer indirekt erhitzte Kathoden von Entladungsroehren
CH184974A (de) Aktivierte Glühkathode mit zum Festhalten der emittierenden Stoffe mit dünnem Metalldraht schraubenförmig bewickeltem Drahtkern.
WO2009000633A1 (fr) Filament et procédé de fabrication d&#39;un filament
DE1184424B (de) Indirekt geheizte Kathode fuer eine elektrische Entladungsroehre und Verfahren zu ihrer Herstellung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20130705

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WEINGAERTNER, KLAUS

Inventor name: VOJKUVKA, ALES

Inventor name: BILIKOVA, JARMILA

Inventor name: KNOLL, PAVEL

Inventor name: MICHALIKOVA, ALENA

Inventor name: HILSCHER, ACHIM

Inventor name: SCHLECHT, JOSEF

Inventor name: HAEMMER, GERALD

Inventor name: RUMPERTESZ, PETR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20140618

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150106