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EP 0589522 B1 19970305 - Cathode-ray tube

Title (en)

Cathode-ray tube

Title (de)

Kathodenstrahlröhre

Title (fr)

Tube à rayons cathodiques

Publication

EP 0589522 B1 19970305 (EN)

Application

EP 93202690 A 19930917

Priority

EP 93202690 A 19930917
EP 92202947 A 19920925

Abstract (en)

[origin: EP0589522A1] A cathode ray tube having an electron gun for relatively low beam currents (less than 1 mA) is shown. The electron gun has a G1 and a G2 electrode. The voltage difference between these electrodes is more than 800 Volt and the electrical field strength E12 between said electrodes is more than 4 keV/mm. An improvement in spot size is thereby obtained. <IMAGE>

IPC 1-7

H01J 29/56; H01J 29/48

IPC 8 full level

H01J 29/48 (2006.01); H01J 29/56 (2006.01)

CPC (source: EP)

H01J 29/488 (2013.01); H01J 29/563 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0589522 A1 19940330; EP 0589522 B1 19970305

DOCDB simple family (application)

EP 93202690 A 19930917