DE359201C - Braun tubes, especially for measuring purposes - Google Patents

Braun tubes, especially for measuring purposes

Info

Publication number
DE359201C
DE359201C DEB89532D DEB0089532D DE359201C DE 359201 C DE359201 C DE 359201C DE B89532 D DEB89532 D DE B89532D DE B0089532 D DEB0089532 D DE B0089532D DE 359201 C DE359201 C DE 359201C
Authority
DE
Germany
Prior art keywords
measuring purposes
tube
braun tubes
tubes
braun
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
Application number
DEB89532D
Other languages
German (de)
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.)
HEINRICH HOERIG DR
Original Assignee
HEINRICH HOERIG DR
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 HEINRICH HOERIG DR filed Critical HEINRICH HOERIG DR
Priority to DEB89532D priority Critical patent/DE359201C/en
Application granted granted Critical
Publication of DE359201C publication Critical patent/DE359201C/en
Expired legal-status Critical Current

Links

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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/24—Supports for luminescent material

Landscapes

  • Luminescent Compositions (AREA)

Description

Braunsche Röhre, insbesondere für Meßzwecke. Die bekannten, im Handel üblichen Braunsehen Röhren, die mit Gasfüllung hergestellt sind, haben die unangenehme Eigenschaft, ihren Härtegrad beim Arbeiten zu verändern, wodurch die Genauigkeit der mit den Röhren vorzunehmenden Messungen (z. B. Strom- und Spannungsdiagramme) erheblich beeinträchtigt wird. Di ese Unvollkommenheit hat ihren Grund teilweise in dem Vorhandensein massiver Metallstücke innerhalb der Röhre, wie solche für die zylinderförmige Anode und den plattenförmigen Kondensator verwendet werden. Bei der Braunsehen Röhre gemäß der Erfindung wird dieser Übelstand dadurch beseitigt, daß die Anode und die Kondensatorplatten aus Glas hergestellt und mit einem in geeigneter Weise aufzutragenden, gut haftenden Metallüberzug, z. B. aus Silber oder Platin versehen werden. Derartige dünne Metallschichten lassen sich viel weitgehendei entgasen, als dies bei den massiven Metallstücken der Fall ist, die außerdem durch den Hüttenprozeß mehr oder weniger Unsauberkeiten aller Art in sich aufgenommen haben. Besonders vorteilhaft ist die Verwendung solcher mit Metall überzogenen Glasteile dann, wenn man die Braunsche Röhre, wie es an siel bereits bekannt ist, mit Glühkathoden ausstattet und mit sehr hohem Vakuum (Elektronenvakuum) arbeitet, wie es bei den Senderröhren üblich ist. Der Metallüberzug kann nachbekanntem Verfahren auf die Glaskörper aufgebracht werden. Ei kznn auch durch Bestäubung hergestellt werden.Braun tube, especially for measuring purposes. The well-known ones in the trade The usual Braunsehen tubes, which are made with gas filling, have the unpleasant ones Property of changing their degree of hardness while working, thereby increasing accuracy the measurements to be made with the tubes (e.g. current and voltage diagrams) is significantly affected. This imperfection is partly due in the presence of massive pieces of metal inside the tube, such as those for the cylindrical anode and the plate-shaped capacitor can be used. at the Braunsehen tube according to the invention, this drawback is eliminated by that the anode and the capacitor plates made of glass and with a suitable Way to be applied, well adhering metal coating, e.g. B. made of silver or platinum be provided. Such thin metal layers can be largely degassed, than is the case with the massive pieces of metal, which are also produced by the smelting process have absorbed more or less uncleanliness of all kinds. Particularly The use of such metal-coated glass parts is advantageous if the Braun tube, as it is already known, is equipped with hot cathodes and works with a very high vacuum (electron vacuum), as is the case with transmitter tubes is common. The metal coating can be applied to the glass body by known methods will. Eggs can also be produced by pollination.

Aus denselben Gründen, aus denen die Anode und Kondensatorplatten als Glühkörper ausgebildet sind, empfiehlt es sich ferner, an Stelle der bisher verwendeten Glimmerplatte des in der Röhre befindlichen Fluoreszenzschirmes eine Glasplatte zu verwenden, welche vorteilhaft an die Röhrenwandung aasgeschmolzen wird und mit der fluoreszierenden Substanz überzogen ist.For the same reasons that the anode and capacitor plates are designed as incandescent bodies, it is also recommended in place of the previously used mica plate of the fluorescent screen located in the tube To use glass plate, which is advantageously aasgeschmelt on the tube wall and is coated with the fluorescent substance.

Claims (1)

PATENT-ANSPRÜc73E: z. Braunsche Röhre, insbesondere für Meßzwecke, dadurch gekennzeichnet, daß die Kondensatorplatten und die Anode als Glaskörper ausgebildet sind, welche in geeigneter Weise mit einem Metallüberzug versehen sind. z. Braunsche Röhre nach Anspruch =, dadurch gekennzeichnet, daß als Fluoreszenzschirm eine innerhalb der Röhre aasgeschmolzene, mit dem fiuoresziercnden Stoffe Überzogene Glasplatte verwendet wird.PATENT CLAIMS: e.g. Braun tube, especially for measuring purposes, characterized in that the capacitor plates and the anode are made of glass are formed, which are provided in a suitable manner with a metal coating. z. Braun tube according to Claim =, characterized in that the fluorescent screen one inside the tube, melted as it is, coated with the fluorescent substance Glass plate is used.
DEB89532D 1919-05-24 1919-05-24 Braun tubes, especially for measuring purposes Expired DE359201C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB89532D DE359201C (en) 1919-05-24 1919-05-24 Braun tubes, especially for measuring purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB89532D DE359201C (en) 1919-05-24 1919-05-24 Braun tubes, especially for measuring purposes

Publications (1)

Publication Number Publication Date
DE359201C true DE359201C (en) 1922-09-19

Family

ID=6984813

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB89532D Expired DE359201C (en) 1919-05-24 1919-05-24 Braun tubes, especially for measuring purposes

Country Status (1)

Country Link
DE (1) DE359201C (en)

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