DE2812437A1 - Assembly technique for electrodes of electron beam generators - melts brackets into glass and radiation welds to electrodes - Google Patents

Assembly technique for electrodes of electron beam generators - melts brackets into glass and radiation welds to electrodes

Info

Publication number
DE2812437A1
DE2812437A1 DE19782812437 DE2812437A DE2812437A1 DE 2812437 A1 DE2812437 A1 DE 2812437A1 DE 19782812437 DE19782812437 DE 19782812437 DE 2812437 A DE2812437 A DE 2812437A DE 2812437 A1 DE2812437 A1 DE 2812437A1
Authority
DE
Germany
Prior art keywords
electrodes
brackets
glass
electron beam
attached
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Withdrawn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
DE19782812437
Other languages
German (de)
Inventor
Karl-Franz Meyer
Reinhard Ing Grad Srowig
Georg Ing Grad Vieweger
Rudolf Wagner
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19782812437 priority Critical patent/DE2812437A1/en
Publication of DE2812437A1 publication Critical patent/DE2812437A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48Electron guns
    • H01J29/50Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • H01J29/503Three or more guns, the axes of which lay in a common plane
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/82Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

All the brackets to hold the electrodes are melted first of all into a support block of glass. The blocks are then assembled into a fixture together with the electrodes, and the brackets are welded to the electrodes by a technique in which no mechanical force is exerted on the brackets. Pref. a radiation technique such as laser beam or electron beam welding is used. The problem of the displacement and distortion due to heat stresses of the electrodes in electron beam generators for in-line colour image cathode ray tubes, when the electrodes are fitted with clips which are melted into glass rods, is overcome.

Description

Beschreibungdescription

Verfahren zum Herstellen einer Elektronenßtrahlerzeugeranordnung Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen einer Elektronenstrahlerzeugeranordnung für eine Farbbildkathodenstrahlröhre, bei der die einzelnen Elektroden an Einschmelzlaschen befestigt sind, die ihrerseits in Aufbauträger aus Glas eingeschmolzen sind.Method of making an electron gun assembly The present invention relates to a method for manufacturing an electron gun assembly for a color cathode ray tube in which the individual electrodes are attached to sealing lugs are attached, which in turn are fused in glass construction girders.

Zum Aufbau von Elektrodenstrahlerzeugersystemen für Farbbildkathodenstrahlröhren ist es bereits bekannt, an den Elektroden befestigte Halteschellen vorzusehen, dann die Elektroden in einer Lehre aufzunehmen und dann die freien Enden der Halteschellen in Glasstäbe einzuschmelzen, wodurch die gegenseitige Lage der Elektroden fixiert wird. Diese bekannten Verfahren verursachen häufig infolge der auftretenden mechanischen und thermischen Beanspruchungen Verspannungen in den Strahlerzeugersystemen, die dann infolge der unterschiedlichen Aufheizungs- bzw. Abkühlzeiten der einzelnen Teile zu unerwünschten Lageveränderungen und Verformungen der Elektroden führen.For the construction of electron gun systems for color cathode ray tubes it is already known to provide clamps attached to the electrodes, then take up the electrodes in a jig and then the free ends of the retaining clips to melt in glass rods, whereby the mutual position of the electrodes is fixed will. These known methods often cause mechanical as a result of the occurring and thermal stresses, stresses in the jet generator systems, which then as a result of the different heating or cooling times of the individual Parts lead to undesired changes in position and deformation of the electrodes.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein neuartiges Verfahren zum Herstellen von Elektronenstrahlerzeugeranordnungen anzugeben, das zu einer Verringerung von Aufbaufehlern und zu höheren Qenauigkeiten der Systeme führt.The present invention is based on the object of a novel To specify a method for producing electron gun assemblies that to a reduction of construction errors and to higher accuracy of the systems leads.

Gemäß der Erfindung wird vorgeschlagen, daß zunächst sämtliche Einschmelzlaschen an den Aufbauträger befestigt werden und daß dann die in einer Lehre zwischenzeitlich gehalterten Elektroden durch eine, keine wesentlichen mechanischen Kräfte ausübende Verbindungstechnik an den Einschmelzlaschen befestigt werden.According to the invention it is proposed that first of all all melt-down tabs be attached to the superstructure and that then in a teaching in the meantime held electrodes by one that does not exert any significant mechanical forces Connection technology to be attached to the melting tabs.

Ein wesentlicher Vorteil des beschriebenen Verfahrens besteht darin, daß bei der Lagefestlegung der Elektroden geringere Wärmemengen auftreten und nahezu keine mechanischen Kräfteeinwirkungen erfolgen. Dadurch werden wesentlich höhere Genauigkeiten erzielt. Ein weiterer Vorteil besteht darin, daß das beschriebene Verfahren die Herstellung von Unterbaugruppen ermöglicht, die beispielsweise aus den gläsernen Haltestäben und die darin verankerten Befestigungslaschen bestehen. Diese größeren Hitzemengen erfordernden Untergruppen können in einfachen automatischen Verfahren hergestellt werden. Es läßt sich dabei auch ermöglichen, daß eine Form von Einschmelzlaschen verwendet wird, die zur Halterung aller Elektroden geeignet ist, so daß das System aus einer verringerten Anzahl unterschiedlicher Bauteile bestehen kann. Auch hierdurch wird eine automatisierte Fertigung wesentlich erleichtert.A major advantage of the method described is that that when fixing the position of the electrodes smaller amounts of heat occur and almost there are no mechanical forces. This will be much higher Accuracies achieved. Another advantage is that the described Process enables the production of sub-assemblies, for example from consist of the glass retaining rods and the fastening straps anchored in them. These sub-groups requiring larger amounts of heat can be converted into simple automatic Process are produced. It can also be made possible that a shape of melting tabs, which are suitable for holding all electrodes is, so that the system consists of a reduced number of different components can exist. This also makes automated production much easier.

Anhand der in den Fig. 1 bis 3 dargestellten Ausführungsbeispiele wird das beschriebene Verfahren nachfolgend näher erläutert.Using the exemplary embodiments shown in FIGS. 1 to 3 the method described is explained in more detail below.

In den Fig. 1 bis 3 sind verschiedene Ansichten eines sogenannten Inline-Strahlerzeugersystems für Farbbildkathodenstrahlröhr en dargestellt. Bei einer solchen Strahlerzeugeranordnung werden drei in einer Ebene nebeneinander verlaufende Elektronenstrahlen erzeugt, wobei es bekanntermaßen zweckmäßig ist, eine Anzahl von Elektroden für alle drei Strahlen gemeinsam zu formen.1 to 3 are different views of a so-called Inline beam generator system for color cathode ray tubes shown. at of such a beam generator arrangement there are three side by side in one plane Electron beams generated, whereby it is known to be expedient to shape a number of electrodes for all three beams in common.

In der Fig. 3 ist beispielsweise die Elektrode 2 mit drei Strahldurchtrittsöffnungen versehen.In FIG. 3, for example, the electrode 2 is shown with three beam passage openings Mistake.

Das System weist zwei gläserne Aufbauträger 1 auf, durch welche die Lage der einzelnen Elektroden 2, 5 und 4 zueinander bestimmt werden. Die Elektroden 2, 5 und 4 sind unter ver Verwendung von Einschmelzlaschen 3, die in ihrer Form gleichartig sind, an den isolierenden Aufbauträgern 1 befestigt. Gemäß der Erfindung sind nun diese Einschmelzlaschen 3 zunächst in die gläsernen Aufbauträger 1 eingeschmolzen. Anschließend werden dann die einzelnen Elektroden 2, 5 und 4 in einer Lehre gehaltert und nun die beiden Träger 1 mit den bereits daran befindlichen Einschmelzlaschen 3 in Kontakt mit den Elektroden gebracht und durch Schweißen in den Elektroden befestigt. Bevorzugt wird eine Schweißtechnik verwendet, die keine mechanischen Kräfte ausübt, insbesondere eine Elektronenstrahl- oder Laserstrahl-Schweißtechnik.The system has two glass structural supports 1 through which the Position of the individual electrodes 2, 5 and 4 to one another can be determined. The electrodes 2, 5 and 4 are ver using melt tabs 3, which in their shape are similar, attached to the insulating structural supports 1. According to the invention These melting tabs 3 are now first melted into the glass structural support 1. Then the individual electrodes 2, 5 and 4 are then held in a jig and now the two carriers 1 with the melt tabs already on them 3 brought into contact with the electrodes and fixed in the electrodes by welding. It is preferred to use a welding technique that does not exert any mechanical forces, in particular an electron beam or laser beam welding technique.

Claims (3)

PatentansPrüche Verfahren zum Herstellen einer Elektronenstrahlerzeugeranordnung für eine Farbbildkathodenstrahlröhre, bei der die einzelnen Elektroden an Einschmelzlaschen befestigt sind, die ihrerseits in Aufbauträger aus Glas eingeschmolzen sind, dadurch gekennzeichnet, daß zunächst sämtliche Eimhmelzlaschen an den Aufbauträger befestigt werden und daß dann die in einer Lehre zwischenzeitlich gehalterten Elektroden durch eine, keine wesentlichen mechanischen Kräfte ausübende Verbindungstechnik an den Einschmelzlaschen befestigt werden.Claims method for manufacturing an electron gun assembly for a color cathode ray tube in which the individual electrodes are attached to sealing lugs are attached, which in turn are fused in glass construction girders, thereby characterized in that initially all Eimhmelzlaschen attached to the body support and that then the electrodes held in the meantime in a teaching by a connection technology that does not exert any significant mechanical forces on the Melting tabs are attached. 2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, daß die Befestigung der Elektroden an den Einchmelzlaschen durch ein Strahlschweißverfahren wie Laserstrahlschweißen oder Elektronenstrahls chweiß en erfolgt. 2. The method according to claim 1, characterized in that the attachment of the electrodes on the melting tabs using a beam welding process such as laser beam welding or electron beam welding takes place. 3. Verwendung eines Verfahrens nach Anspruch 1 oder Anspruch 2, zur Herstellung einer Elektronenstrahlerzeugeranordnung für eine Inline-Farbbildkathodenstrahlröhre. 3. Use of a method according to claim 1 or claim 2 for Manufacture of an electron gun assembly for an inline color cathode ray tube.
DE19782812437 1978-03-22 1978-03-22 Assembly technique for electrodes of electron beam generators - melts brackets into glass and radiation welds to electrodes Withdrawn DE2812437A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782812437 DE2812437A1 (en) 1978-03-22 1978-03-22 Assembly technique for electrodes of electron beam generators - melts brackets into glass and radiation welds to electrodes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782812437 DE2812437A1 (en) 1978-03-22 1978-03-22 Assembly technique for electrodes of electron beam generators - melts brackets into glass and radiation welds to electrodes

Publications (1)

Publication Number Publication Date
DE2812437A1 true DE2812437A1 (en) 1979-09-27

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ID=6035120

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782812437 Withdrawn DE2812437A1 (en) 1978-03-22 1978-03-22 Assembly technique for electrodes of electron beam generators - melts brackets into glass and radiation welds to electrodes

Country Status (1)

Country Link
DE (1) DE2812437A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2945983A1 (en) * 1978-11-14 1980-05-22 Tokyo Shibaura Electric Co METHOD AND DEVICE FOR MOUNTING AN ELECTRON TUBE
EP0453978A1 (en) * 1990-04-28 1991-10-30 Nokia (Deutschland) GmbH Electron gun system
WO2001031677A1 (en) * 1999-10-27 2001-05-03 Koninklijke Philips Electronics N.V. Electron gun for a cathode ray tube, and cathode ray tube provided with such a gun

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2945983A1 (en) * 1978-11-14 1980-05-22 Tokyo Shibaura Electric Co METHOD AND DEVICE FOR MOUNTING AN ELECTRON TUBE
EP0453978A1 (en) * 1990-04-28 1991-10-30 Nokia (Deutschland) GmbH Electron gun system
WO2001031677A1 (en) * 1999-10-27 2001-05-03 Koninklijke Philips Electronics N.V. Electron gun for a cathode ray tube, and cathode ray tube provided with such a gun

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