GB651012A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB651012A
GB651012A GB9661/48A GB966148A GB651012A GB 651012 A GB651012 A GB 651012A GB 9661/48 A GB9661/48 A GB 9661/48A GB 966148 A GB966148 A GB 966148A GB 651012 A GB651012 A GB 651012A
Authority
GB
United Kingdom
Prior art keywords
casing
anode
cathode
control grid
april
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
GB9661/48A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Philips Electronics NV
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 Philips Gloeilampenfabrieken NV, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB651012A publication Critical patent/GB651012A/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
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Elimination Of Static Electricity (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

651,012. Cathode-ray tubes. PHILIPS ELECTRICAL, Ltd. April 6, 1948, No. 9661. Convention date, April 9, 1947. [Class 39 (i)] A directional electron beam from a cathode 2, Fig. 1, is subjected to the action of two field electrodes, e.g. the control grid 6 and the anode 3, enclosed within an insulating casing 1 which is near the control grid, and a screen 8, unconnected with any supply, extends from the casing into the space between the field electrodes so as to prevent electrons from the control grid being drawn to the casing by static charges produced thereon, e.g. by the anode. A further screen 9, Fig. 2, may be provided. The anode is preferably supported by springs 5 bearing on a metallic lining extending over part of the casing 1. The tube is preferably a television receiving cathode-ray tube.
GB9661/48A 1947-04-09 1948-04-06 Improvements in or relating to electric discharge tubes Expired GB651012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL651012X 1947-04-09

Publications (1)

Publication Number Publication Date
GB651012A true GB651012A (en) 1951-03-07

Family

ID=19793812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9661/48A Expired GB651012A (en) 1947-04-09 1948-04-06 Improvements in or relating to electric discharge tubes

Country Status (4)

Country Link
US (1) US2509763A (en)
DE (1) DE818983C (en)
FR (1) FR964331A (en)
GB (1) GB651012A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759944A (en) * 1954-03-02 1956-10-24 Gen Electric Co Ltd Improvements in or relating to electric circuit arrangements incorporating cathode ray tubes
US2888605A (en) * 1955-02-23 1959-05-26 Hughes Aircraft Co Electron gun
DE1100184B (en) * 1956-08-27 1961-02-23 Gen Electric Component of an electron gun
US3277328A (en) * 1961-10-23 1966-10-04 Philco Corp Support means for cathode ray tube gun structure
US3529195A (en) * 1968-01-02 1970-09-15 Hughes Aircraft Co Electron gun electrode mounting arrangement
DE19534123A1 (en) * 1995-09-14 1997-03-20 Licentia Gmbh Cathode ray tube assembly
KR19990026440A (en) 1997-09-24 1999-04-15 손욱 Cathode ray tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927807A (en) * 1926-09-22 1933-09-19 Gen Electric Space discharge apparatus
US1979392A (en) * 1931-05-04 1934-11-06 Siemens Ag Cathode ray tube
US2079163A (en) * 1932-05-31 1937-05-04 Farnsworth Television Inc Electron gun
BE426509A (en) * 1937-02-22
BE427901A (en) * 1937-05-05
US2174853A (en) * 1937-08-26 1939-10-03 Hygrade Sylvania Corp Electron gun structure and method of assembly thereof
US2303166A (en) * 1941-01-21 1942-11-24 Bell Telephone Labor Inc Electron discharge device
US2355795A (en) * 1942-08-17 1944-08-15 Bell Telephone Labor Inc Electrode system

Also Published As

Publication number Publication date
DE818983C (en) 1951-10-29
FR964331A (en) 1950-08-10
US2509763A (en) 1950-05-30

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