GB747858A - Electron gun - Google Patents

Electron gun

Info

Publication number
GB747858A
GB747858A GB25437/52A GB2543752A GB747858A GB 747858 A GB747858 A GB 747858A GB 25437/52 A GB25437/52 A GB 25437/52A GB 2543752 A GB2543752 A GB 2543752A GB 747858 A GB747858 A GB 747858A
Authority
GB
United Kingdom
Prior art keywords
housing
cathode
assembly
sub
spaced apart
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
GB25437/52A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB747858A publication Critical patent/GB747858A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/027—Construction of the gun or parts thereof

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Microwave Tubes (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

747,858. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. Oct. 10, 1952 [Nov. 1, 1951], No. 25437/52. Class 39 (1). An electron gun comprises an indirectly heated cathode 9, Fig. 1, and a focusing electrode 14 aligned and spaced apart in a cathode sub-assembly, and a plurality of cylindrical accelerating electrodes 25, 28, 30 aligned and spaced apart in an anode sub-assembly. The electrodes 25, 28, 30 are spaced apart by ceramic members 26, 27, 29. The anode and cathode sub-assemblies are aligned and spaced apart by a housing 36 which fits telescopically into the housing 3 of the anode sub-assembly. The cathode sub-assembly is secured to the housing 36 by means of a sleeve 1. In another embodiment, Fig. 3, the cathode sub-assembly is clamped between the housing 36 and a housing 43 which fits telescopically into the housing 36. The cathode 9 and focusing electrode 54 are secured to a mica disc 48 by metal rings 53, 55 each of which has a series of nipples extending through apertures in the mica disc and welded to the respective electrodes. In the embodiment of Fig. 1, a metallic focusing disc 31 is secured to the first accelerating electrode 30.
GB25437/52A 1951-11-01 1952-10-10 Electron gun Expired GB747858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US254298A US2740913A (en) 1951-11-01 1951-11-01 Electron gun

Publications (1)

Publication Number Publication Date
GB747858A true GB747858A (en) 1956-04-18

Family

ID=22963731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25437/52A Expired GB747858A (en) 1951-11-01 1952-10-10 Electron gun

Country Status (2)

Country Link
US (1) US2740913A (en)
GB (1) GB747858A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234340A1 (en) * 1986-02-17 1987-09-02 Heimann GmbH Picture pick-up tube

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822492A (en) * 1953-10-14 1958-02-04 Int Standard Electric Corp Electron discharge devices
US2951113A (en) * 1954-05-27 1960-08-30 Itt Color television receiver
US2914694A (en) * 1957-10-04 1959-11-24 Rca Corp Cathode assembly
US3004183A (en) * 1957-12-03 1961-10-10 Itt Electron gun
US2938134A (en) * 1958-01-13 1960-05-24 Itt Electron gun
US3065374A (en) * 1959-10-12 1962-11-20 Varian Associates Low noise electron discharge device
US3289028A (en) * 1963-10-03 1966-11-29 Gen Electric Appendage electron gun for light valve projection apparatus
US3704511A (en) * 1969-12-18 1972-12-05 Gen Electric Fly{40 s eye lens process
US4720654A (en) * 1986-11-26 1988-01-19 Rca Corporation Modular electron gun for a cathode-ray tube and method of making same
US5964633A (en) * 1997-12-15 1999-10-12 Hughes Electronics Corporation Method of heat shrink assembly of traveling wave tube

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2227051A (en) * 1933-09-23 1940-12-31 Wienecke Bruno Braun tube
NL42114C (en) * 1933-11-30
USB388112I5 (en) * 1935-03-30
US2163740A (en) * 1935-11-26 1939-06-27 Jr Nathaniel B Wales Phase wave ion gun
BE426251A (en) * 1937-02-11
GB493790A (en) * 1937-04-30 1938-10-14 British Thomson Houston Co Ltd Improvements in or relating to cathode ray devices
US2248558A (en) * 1937-10-22 1941-07-08 Loewe Radio Inc Television tube
US2279249A (en) * 1939-01-26 1942-04-07 Westinghouse Electric & Mfg Co Spark gap device
NL72884C (en) * 1939-12-02
US2244358A (en) * 1939-12-30 1941-06-03 Rca Corp Thermionic cathode assembly
BE440927A (en) * 1940-05-08
US2282392A (en) * 1941-06-06 1942-05-12 Bell Telephone Labor Inc Electron discharge device
US2411913A (en) * 1942-09-21 1946-12-03 Bell Telephone Labor Inc Electron discharge device
US2436265A (en) * 1945-07-27 1948-02-17 Du Mont Allen B Lab Inc Cathode-ray tube
BE469227A (en) * 1945-10-03
US2521364A (en) * 1946-01-04 1950-09-05 Rca Corp Electron discharge device for high frequency
US2441315A (en) * 1946-01-28 1948-05-11 Rca Corp Electron gun mounting
US2462921A (en) * 1946-05-03 1949-03-01 Standard Telephones Cables Ltd Electron discharge tube
US2540621A (en) * 1948-02-19 1951-02-06 Rca Corp Electron gun structure
US2569847A (en) * 1949-04-08 1951-10-02 Eitel Mccullough Inc High-frequency tetrode with built-in capacitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234340A1 (en) * 1986-02-17 1987-09-02 Heimann GmbH Picture pick-up tube

Also Published As

Publication number Publication date
US2740913A (en) 1956-04-03

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