DE654753C - Braun tubes, especially for television purposes - Google Patents
Braun tubes, especially for television purposesInfo
- Publication number
- DE654753C DE654753C DEF75040D DEF0075040D DE654753C DE 654753 C DE654753 C DE 654753C DE F75040 D DEF75040 D DE F75040D DE F0075040 D DEF0075040 D DE F0075040D DE 654753 C DE654753 C DE 654753C
- Authority
- DE
- Germany
- Prior art keywords
- end wall
- flat
- reinforcement plate
- cemented
- braun tubes
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 101000685083 Centruroides infamatus Beta-toxin Cii1 Proteins 0.000 claims 1
- 239000005357 flat glass Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/87—Arrangements for preventing or limiting effects of implosion of vessels or containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/87—Means for avoiding vessel implosion
- H01J2229/875—Means substantially covering the output face, e.g. resin layers, protective panels
Landscapes
- Laminated Bodies (AREA)
Description
Braunsche Röhre, insbesö@dere für Fernsehzwecke Während früher Braunsche Röhren, im allgemeinen einen sehr stark gewölbten Glasboden besaßen, sind neuerdings Planböden verwendet worden, um auf diese Weise Bildverzerrungen zu vermeiden.Braunsche tube, especially for television purposes Tubes, generally with a very strongly curved glass bottom, are more recent Flat floors have been used in order to avoid image distortions in this way.
Der Nachteil dieser Anordntnlg besteht hauptsächlich darin, daß diese Planglasscheiben erhebliche Dicke besitzen müssen, was während des Anschmelzvorganges an den übrigen Teilen der Röhre Schwierigkeiten macht und langwierige Kühlprozesse erfordert. Außerdem muß unbedingt mit einem großen Sicherheitskoeffizienten für den praktischen Betrieb gerechnet werden, da einer Zerstörung der Röhre, vor allen Dingen, wenn sie als Fernsehempfänger gebraucht werden soll, auf jeden Fall vorgebeugt werden muß.The disadvantage of this arrangement is mainly that this Flat glass panes must have considerable thickness, which occurs during the melting process Difficulties and lengthy cooling processes on the remaining parts of the tube requires. In addition, it is imperative to have a large safety coefficient for the practical operation can be expected, since a destruction of the tube, above all Things, if it is to be used as a television receiver, definitely prevented must become.
D ie vorliegende Erfindung ermöglicht es einerseits, den Herstellungsprozeß von Braunsehen Röhren mit Planböden zu vereinfachen und bietet außerdem die Möglichkeit, den Boden doch so stabil auszuführen, daß er auch bei den gesteigerten Anforderungen der Praxis :eine hinreichend hohe Sicherheüt ,gewährleistet.D he present invention on the one hand enables the manufacturing process von Braunsehen tubes with flat bottoms and also offers the possibility of to make the floor so stable that it can also withstand the increased demands in practice: a sufficiently high level of security guaranteed.
Nach der Erfindung wird die Abschlußwandi zunächst in solcher Stärke hergestellt, daß sie dem äußeren Luftdruck gerade standhält. Nach der Wärmebehandlung der Röhre wird auf die Abschlnßwand eine ebene VerstärkLulgsplatte aufgekittet, die nun eine genügend hohe Sicherheit gewährleistet.According to the invention, the Abschlusswandi is initially in such strength made that it just withstands the external air pressure. After the heat treatment A level reinforcement plate is cemented onto the end wall of the tube, which now guarantees a sufficiently high level of security.
In der Zeichnung ist ,eine Ausführungsform des Erfindungsgedankens dargestellt. Es bedeutet hier i den konischen Teil des Braunschen Röhrenkolbens, an den eine verhältnismäßig dünne Planglasplatte 2 an den Stellen 3, 3' angeschmolz.en ist. Die Platte 2 ist so stark ausgeführt, daß sie während dies Evakuicrprozesses gerade bis dicht an die Grenze ihrer Festigkeit beansprucht wird. Nach der Wärmebehandlung wird unter Zwischenschaltung einer Zwischenschicht 4. eine starke Planglasplatte 5 auf die Platte 2 aufgebracht. Als Zwischenschicht q. können normale anorganische oder organische Klebemittel Verwendung finden.In the drawing is an embodiment of the inventive concept shown. It means here i the conical part of the Braun tube flask, to which a relatively thin flat glass plate 2 at the points 3, 3 'melted is. The plate 2 is made so strong that it during this evacuating process is stressed just up to the limit of their strength. After the heat treatment with the interposition of an intermediate layer 4. a strong flat glass plate 5 applied to the plate 2. As an intermediate layer q. can be normal inorganic or organic adhesives are used.
Der konische Teil und der Planboden 2 können auch aus einem Stück geblasen werden. Unter Umständen wird der Planboclten abgeschliffen und poliert und auf diese Fläche dann die Planglasplatte aufgekittet.The conical part and the plane bottom 2 can also be made in one piece be blown. The plan block may be ground and polished and then cemented the flat glass plate onto this surface.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF75040D DE654753C (en) | 1933-02-11 | Braun tubes, especially for television purposes |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF75040D DE654753C (en) | 1933-02-11 | Braun tubes, especially for television purposes | |
| DE768092X | 1933-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE654753C true DE654753C (en) | 1938-01-06 |
Family
ID=25947930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEF75040D Expired DE654753C (en) | 1933-02-11 | Braun tubes, especially for television purposes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE654753C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE753325C (en) * | 1938-03-19 | 1951-08-06 | Fernseh Gmbh | Vacuum discharge vessel, in particular Braun's tube, and process for its production |
| DE975461C (en) * | 1951-05-19 | 1961-12-14 | Siemens Ag | Electron beam tubes, in particular television picture tubes, with a tube piston made of metal |
-
0
- DE DEF75040D patent/DE654753C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE753325C (en) * | 1938-03-19 | 1951-08-06 | Fernseh Gmbh | Vacuum discharge vessel, in particular Braun's tube, and process for its production |
| DE975461C (en) * | 1951-05-19 | 1961-12-14 | Siemens Ag | Electron beam tubes, in particular television picture tubes, with a tube piston made of metal |
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