US2064981A - Braun tube for television receiver apparatus - Google Patents

Braun tube for television receiver apparatus Download PDF

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Publication number
US2064981A
US2064981A US714263A US71426334A US2064981A US 2064981 A US2064981 A US 2064981A US 714263 A US714263 A US 714263A US 71426334 A US71426334 A US 71426334A US 2064981 A US2064981 A US 2064981A
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US
United States
Prior art keywords
tube
electrodes
television receiver
receiver apparatus
braun tube
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 - Lifetime
Application number
US714263A
Other languages
English (en)
Inventor
Knoll Max
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.)
Telefunken AG
Original Assignee
Telefunken 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 Telefunken AG filed Critical Telefunken AG
Application granted granted Critical
Publication of US2064981A publication Critical patent/US2064981A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements

Definitions

  • the present invention is concerned with' a- Braun tube capable of use in a television receiver, and it concerns more particularly the ways and means by which the electrodes, which I are confined inside the tube and intended for ray generation, ray control and optionally also for ray or pencil focussing, are to be disposed and secured with respect to one another.
  • these constituent parts were fastened by spot welding to the wires which are brought to the seals or lead-ins .for the electrodes.
  • this mode of support is attended withrthe drawback that it is rather diflicult to cause the various electrodes to occupy the exact positions relative to one another which they are to occupy in the actual operation of the tube.
  • Another factor is that during the heating I of the tube, which is necessary before it is severed from the vacuum pump, the said wires are liable to bend or warp'with the result that, no
  • FIG. 1 An exemplified embodiment of the present in- V 45 vention, in which all of the electrodes employed for ray generation and ray modulation as well as for focussing'the ray-pencil are alined on two supporting bolts and are kept' apart by spacers, is -illustrated schematically in Fig. 1 of the-attached drawing which forms a part of the application.
  • I denotes the glassenvelope of a Braun tube which is provided atgone end with a reentrant stem II and 55 the press l2.
  • a metal collar l3 Surrounding the stem' Hts a metal collar l3 which,'ior instance, may consist of two semi-circular sheet-metal straps clamped fast by the aid of screws or rivets I to the stem ll. Attached to the said collar l3 are two supporting bolts or rods i5 and I6,
  • Pins I1 and I8 pass through insulation tubes l9 and 20 which, for instance,
  • the various electrodes of the Braun tube are each furnished with a flange provided with two bores through which project the supporting bolts or rods l5, l6, and the insulation tubes I9, 20. These electrodes are: a support 2
  • Deflector plates 42, 43 are also disclosed in Fig. 2 and these may be disposed and secured onto the supports [5, it in a manner similar to the mounting of the electrodes 2
  • the support rods or bolts l5, I6 shown in the drawing may take the form of straight rods if the collar 83 is furnished with two radial parts or flanges of such size that the supporting bolts are sufficiently spaced apart in the direction at right angles to the tube axis.
  • the supporting bolts l5 and "5 are 1 preferably secured on the collar I3 in such a waythat their mutual position, at leastso far as that in longitudinal sense is concerned, can be adjusted to each other.
  • the flanges of the electrodes shown in the drawing need not necessarily be circular, indeed,
  • a Braun cathode-ray tube comprising-a plurality of vertically disposed support rods, a
  • cylindrical indirectly-heated cathode disposed 'with its axis in parallel relation to the support rods, tubular sleeves of insulating material surrounding said support rods, a cylindrical indirectly-heated cathode disposed with its axis in parallel relation to the support rods and having a plurality of laterally-extending flanges, each flange being provided with an opening through which a support rod and its insulating sleeve are passed, a plurality of cooperating electrodes.

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
US714263A 1933-03-14 1934-03-06 Braun tube for television receiver apparatus Expired - Lifetime US2064981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET2239A DE878511C (de) 1933-03-14 1933-03-14 Braunsche Roehre als Bild-Wiedergaberoehre fuer Fernsehzwecke

Publications (1)

Publication Number Publication Date
US2064981A true US2064981A (en) 1936-12-22

Family

ID=7983271

Family Applications (1)

Application Number Title Priority Date Filing Date
US714263A Expired - Lifetime US2064981A (en) 1933-03-14 1934-03-06 Braun tube for television receiver apparatus

Country Status (4)

Country Link
US (1) US2064981A (is")
BE (1) BE401969A (is")
DE (1) DE878511C (is")
SE (1) SE96524C1 (is")

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508992A (en) * 1948-04-19 1950-05-23 Gen Electric Electrode assembly for electric discharge devices
US2564743A (en) * 1949-03-15 1951-08-21 Sperry Corp Charged particle beam forming apparatus
US2581446A (en) * 1949-10-31 1952-01-08 Cons Eng Corp Supporting means for vacuum electrodes
US2976452A (en) * 1954-11-04 1961-03-21 Sylvania Electric Prod Ceramic rod spacers for use in mass producible electron tubes
US3070724A (en) * 1960-05-23 1962-12-25 Sylvania Electric Prod Electron discharge device
US3660707A (en) * 1970-01-15 1972-05-02 Gen Electric Electron beam discharge device having improved electron gun structure
US3979631A (en) * 1974-04-25 1976-09-07 U.S. Philips Corporation Cathode ray tube with electrostatic multipole focusing lens

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508992A (en) * 1948-04-19 1950-05-23 Gen Electric Electrode assembly for electric discharge devices
US2564743A (en) * 1949-03-15 1951-08-21 Sperry Corp Charged particle beam forming apparatus
US2581446A (en) * 1949-10-31 1952-01-08 Cons Eng Corp Supporting means for vacuum electrodes
US2976452A (en) * 1954-11-04 1961-03-21 Sylvania Electric Prod Ceramic rod spacers for use in mass producible electron tubes
US3070724A (en) * 1960-05-23 1962-12-25 Sylvania Electric Prod Electron discharge device
US3660707A (en) * 1970-01-15 1972-05-02 Gen Electric Electron beam discharge device having improved electron gun structure
US3979631A (en) * 1974-04-25 1976-09-07 U.S. Philips Corporation Cathode ray tube with electrostatic multipole focusing lens

Also Published As

Publication number Publication date
BE401969A (is")
DE878511C (de) 1953-06-05
SE96524C1 (is") 1939-08-15

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