GB655706A - Improvements in cathode-ray tubes - Google Patents

Improvements in cathode-ray tubes

Info

Publication number
GB655706A
GB655706A GB25619/48A GB2561948A GB655706A GB 655706 A GB655706 A GB 655706A GB 25619/48 A GB25619/48 A GB 25619/48A GB 2561948 A GB2561948 A GB 2561948A GB 655706 A GB655706 A GB 655706A
Authority
GB
United Kingdom
Prior art keywords
cathode
screen
wall
tube
ray tubes
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
GB25619/48A
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 GB655706A publication Critical patent/GB655706A/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
    • H01J29/021—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof arrangements for eliminating interferences in the tube

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

655,706. Cathode-ray tubes. PHILIPS ELECTRICAL, Ltd. Oct. 1, 1948, No. 25619. Convention date, Oct. 4, 1947. [Class 39 (i)] A cathode-ray tube is provided with a screen 9 between two field electrodes, one of which may be the cathode, the screen extending inwardly from near the wall and having a layer 8 of semi-conductive material on the surface facing the wall and the second field electrode. The semi-conductive layer may be of black nickel oxide, and the screen serves to prevent " back-fire " discharges from the wall to the cathode. The screen may be between the control electrode 6 and the anode 3 and may be connected to the cathode; alternatively, Fig. 1 (not shown), the screen may act as the control electrode. The tube may be a television receiving or pick-up tube.
GB25619/48A 1947-10-04 1948-10-01 Improvements in cathode-ray tubes Expired GB655706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL655706X 1947-10-04

Publications (1)

Publication Number Publication Date
GB655706A true GB655706A (en) 1951-08-01

Family

ID=19795225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25619/48A Expired GB655706A (en) 1947-10-04 1948-10-01 Improvements in cathode-ray tubes

Country Status (3)

Country Link
DE (1) DE811120C (en)
FR (1) FR973007A (en)
GB (1) GB655706A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178359A1 (en) * 1983-07-30 1986-04-23 English Electric Valve Company Limited Linear beam tubes
US4599542A (en) * 1983-07-30 1986-07-08 English Electric Valve Company Limited Linear beam tubes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3225677C2 (en) * 1982-07-09 1986-04-10 Weco Wehmeyer GmbH & Co, Fahrzeug-Fahrzeugteile-Werke GmbH & Co, 4806 Werther PEDAL FOR A BIKE-LIKE HOME TRAINER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178359A1 (en) * 1983-07-30 1986-04-23 English Electric Valve Company Limited Linear beam tubes
US4599542A (en) * 1983-07-30 1986-07-08 English Electric Valve Company Limited Linear beam tubes

Also Published As

Publication number Publication date
DE811120C (en) 1951-08-16
FR973007A (en) 1951-02-06

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