DE703696C - Device for deflecting electron beams, e.g. B. in Braunschen Roehren - Google Patents

Device for deflecting electron beams, e.g. B. in Braunschen Roehren

Info

Publication number
DE703696C
DE703696C DE1934A0073934 DEA0073934D DE703696C DE 703696 C DE703696 C DE 703696C DE 1934A0073934 DE1934A0073934 DE 1934A0073934 DE A0073934 D DEA0073934 D DE A0073934D DE 703696 C DE703696 C DE 703696C
Authority
DE
Germany
Prior art keywords
field
magnetic
electron beams
dipole field
electric
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
DE1934A0073934
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DE1934A0073934 priority Critical patent/DE703696C/en
Application granted granted Critical
Publication of DE703696C publication Critical patent/DE703696C/en
Expired 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
    • H01J29/70Arrangements for deflecting ray or beam

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  • Particle Accelerators (AREA)

Description

Einrichtung zur Ablenkung von Elektronenstrahlen, z. B. in Brauaschen Röhren Die Erfindung betril-tt eine Einrichtun - zur Ablenkung von Elektronenstrahlen. Zur Ablenkung von Elektronenstrahlen, z.B. in Braunscheit Rohren, dienen Ablenkspulen- paare oder Ablenkplattenpaare. Diese bisher bekannten Anordnun-en haben den Nachteil, daß sie gleichzeitig als Zt-linderlinse wirken und entsprechend die Divergenz des Elek- tronenstrahlbundels irr einer l@iclittiti- ver- mindern. Sind die Ablenkelernetite nun.'in ein ans elektronenoptischen Linset. bestehendes Svstem eingebaut, so ändert sich durch ihn' Fokussierungseigetischaften die Brennwcitc dieses Svstems,@und im a11-eineinen wird der abgelenkte Strahl keinen scharfen Uuchtl-leck mehr auf dem Schirm erzeugen. C:egenstarrd der Erfindung ist eine Einrich- tung, die nur ablenkend und nicht geichzeiti: fokussierend wirkt. Diese Wirkung wird er- fndungsgetnäl.= dadurch erzielt, dah aul:@er dem ablenkenden und zttgleicli fokussierciicl wirkenden magnetischen oder elektrischen Feld ein zerstreuendes, die Fokussierungswirkung ainfhebendes, ebenfalls ablenkendes magne- tisches oder eektriaches leid vorgesehen ist. In den Abb. i bis 3 der Zeichnung sind Ausführungsbeispiele der erhndungsgeinäl:,eti Einrichtung zur Ablenkun- von Elektronen- strahlen dargestellt. 13ei der- Anordnung nach Abb. i dient zur Ablenkung der Eluktroneustrahlen das Ab- lenkspuleiipa.ar Sr, S_,. L' m die Fokussierungs- eigenschaften dieses Ablenkspulenpaares auf- zuheben, ist der ein magnetisches Dipolfelel erzeugende Elektromagnet :11 in Form eines Solenoides finit Eisenkern angeordnet. Die Elektronenstrahlen verlaufen in der Äquator- ebene des Dipolfeldes. Das Solenoid A1 kann auch durch einen einfachen Ilufeisenniagneten ersetzt werden, wie es in Abli. 2 dargestellt ist. Praktisch bildet auch das Feld des Htifeiserimagneten in genügender Näherung ein magnetisches Dipolfeld.Device for deflecting electron beams, e.g. B. in brewing ash tubes The invention concerns a facility Deflection of electron beams. For deflecting electron beams, e.g. in Braunscheit tubes, deflection coil pairs or baffle pairs. This so far known arrangements have the disadvantage that they also act as a Zt-relief lens and accordingly the divergence of the elec- tronenstrahlbundels err one l @ iclittiti- ver reduce. Are the deflectors now.'in a to the electron optical lens set. existing System built in, so changes through it ' The focussing features of the fuel wcitc this system, @ and in the a11-eininen becomes the deflected beam does not have a sharp Uuchtl leak generate more on the screen. C: egenstarrd of the invention is a device that are only distracting and not at the same time: has a focusing effect. This effect will fndungsgetnäl. = achieved thereby, dah aul: @er the distracting and focussing acting magnetic or electric field a dispersing, the focusing effect uplifting, also distracting magnetic table or electrical suffering is provided. In Figs. I to 3 of the drawing are Embodiments of the extension units:, eti Device for deflecting electron rays shown. 13ei der- arrangement according to Fig. I is used for Deflection of the eluctron emitting lenkspuleiipa.ar Sr, S_ ,. L'm the focusing properties of this pair of deflection coils to raise is a magnetic dipole field generating electromagnet: 11 in the form of a Solenoid finite iron core arranged. the Electron beams run in the equatorial plane of the dipole field. The solenoid A1 can also be replaced by a simple Ilufeisenniagneten, as shown in Abli. 2 is shown. In practice, the field of the Htifeiserimagneten also forms a magnetic dipole field in a sufficient approximation.

Abb.3 zeigt beispielsweise ein durch das Plattenpaar@Pt, P,> erzeugtes elektrisches Ablenkfeld. Zur Aufhehunri der Fokussierungscigenschaften dient das Feld des Elektroniagneten 'l1.Fig. 3 shows, for example, one generated by the pair of plates @ Pt, P,> electrical deflection field. This serves to cancel the focusing properties Field of the electron diagram 'l1.

Claims (1)

PATENTANSPRÜCHE: r. Einrichtung zur Ablenkung von Elektronenstrahlen, z. ß. in Br:aunschenRöhren, dachirch gekciinzeicliiiet, daß (lern ablenkenden und zugleich fokussierend wirkenden elektrischen oder magnetischen Feld ein zerstreuendes, die Fokussierung aufliehendes elektrisches o(lc#r magnetisches Al)l.enkfeld überlagert ist. _. Einrichtung nach Anspruch t, dadurch gekennzeichnet, daß einem homo-;enen magnetischen Ablenkfeld ein magnetisches Dipolfeld in der Weise überlagert ist, daC) die Kraftlinien des homogenen Feldes parallel zur Achse des Dipolfeldes verlaufen, wobei der Elektronenstrahl in der J'i<quatorebene des Di_polfeldes verläuft. 3. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß einem nahezu homogenen elektrischen Feld ein magnetisches Dipolfeld überlagert ist, derart, daß die elektrischen Kraftlinien senkrecht auf der Achse des magnetischen Dipolfeldes stehen, wobei der Elektronenstrahl in der Äquatorebene des Dipolfeldes verläuft.PATENT CLAIMS: r. Device for deflecting electron beams, z. ß. in Br: aunschenRöhren, dachirch gekciinzeicliiet that (learn distracting and at the same time a focusing electric or magnetic field a dispersing, the focus rising electric o (lc # r magnetic Al) l. steering field superimposed is. _. Device according to claim t, characterized in that a homo-; ene magnetic deflection field a magnetic dipole field is superimposed in such a way that daC) the lines of force of the homogeneous field run parallel to the axis of the dipole field, whereby the electron beam runs in the J'i <equatorial plane of the dipole field. 3. Device according to claim i, characterized in that a nearly homogeneous electric field a magnetic dipole field is superimposed, so that the electric Lines of force are perpendicular to the axis of the magnetic dipole field, the Electron beam runs in the equatorial plane of the dipole field.
DE1934A0073934 1934-08-22 1934-08-23 Device for deflecting electron beams, e.g. B. in Braunschen Roehren Expired DE703696C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1934A0073934 DE703696C (en) 1934-08-22 1934-08-23 Device for deflecting electron beams, e.g. B. in Braunschen Roehren

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE454460X 1934-08-22
DE1934A0073934 DE703696C (en) 1934-08-22 1934-08-23 Device for deflecting electron beams, e.g. B. in Braunschen Roehren

Publications (1)

Publication Number Publication Date
DE703696C true DE703696C (en) 1941-03-14

Family

ID=25943791

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1934A0073934 Expired DE703696C (en) 1934-08-22 1934-08-23 Device for deflecting electron beams, e.g. B. in Braunschen Roehren

Country Status (1)

Country Link
DE (1) DE703696C (en)

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