GB812089A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB812089A
GB812089A GB3612056A GB3612056A GB812089A GB 812089 A GB812089 A GB 812089A GB 3612056 A GB3612056 A GB 3612056A GB 3612056 A GB3612056 A GB 3612056A GB 812089 A GB812089 A GB 812089A
Authority
GB
United Kingdom
Prior art keywords
cathode ray
mesh
ray tubes
relating
strands
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
GB3612056A
Inventor
Lawrence Sidney Allard
Geoffrey William Warren
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3612056A priority Critical patent/GB812089A/en
Publication of GB812089A publication Critical patent/GB812089A/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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation

Landscapes

  • Microwave Tubes (AREA)

Abstract

812,089. Cathode ray tubes. GENERAL ELECTRIC CO. Ltd. Nov. 26, 1957 [Nov. 26, 1956], No. 36120/56. Drawings to Specification. Class 39(1). A cathode ray tube is provided with an electron gun having an apertured modulator electrode, the aperture being covered by a mesh of metal wire of diameter not greater than 10 microns and including at least one set of parallel strands arranged at a substantially even initial spacing of not less than 250 strands per inch. Preferably the wire of the mesh is about 7 microns diameter the strands being spaced at 400 to the inch and the mesh is located at 0À15 mm. distance from the electron emissive surface of the cathode.
GB3612056A 1956-11-26 1956-11-26 Improvements in or relating to cathode ray tubes Expired GB812089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3612056A GB812089A (en) 1956-11-26 1956-11-26 Improvements in or relating to cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3612056A GB812089A (en) 1956-11-26 1956-11-26 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
GB812089A true GB812089A (en) 1959-04-15

Family

ID=10385168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3612056A Expired GB812089A (en) 1956-11-26 1956-11-26 Improvements in or relating to cathode ray tubes

Country Status (1)

Country Link
GB (1) GB812089A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252031A (en) * 1960-11-28 1966-05-17 Gen Electric Electron gun for cathode ray tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252031A (en) * 1960-11-28 1966-05-17 Gen Electric Electron gun for cathode ray tubes

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