EP 0360627 B1 19940601 - Face plate for a colour television tube.
Title (en)
Face plate for a colour television tube.
Title (de)
Frontscheibe für eine hochauflösende Farbfernsehröhre.
Title (fr)
Dalle pour écran de tube de télévision en couleurs.
Publication
Application
Priority
FR 8810116 A 19880727
Abstract (en)
[origin: EP0360627A1] The present invention relates to a method for manufacturing a colour television tube. It also relates to a faceplate for a three- colour television tube. It finds application in the reception of high- definition television transmissions. According to the invention, the faceplates intended for a high- definition television tube screen are elements of the family of surfaces defined by: (C(i).x<j(i><.><yk(i))> Ci = Co(i).f<-><(j(i)><+><k(i)><-><1>) 100.ABS(z1-z) < 5.zd where z is the height of a surface of the family, z1 that of a test surface and zd that of the maximum value of the height of the surface. C0 corresponds to a reference surface of the family. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 29/30 (2006.01); H01J 29/86 (2006.01)
CPC (source: EP KR US)
H01J 29/30 (2013.01 - EP US); H01J 29/86 (2013.01 - KR); H01J 29/861 (2013.01 - EP US); H01J 2229/862 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES GB IT NL
DOCDB simple family (publication)
FR 2634945 A1 19900202; FR 2634945 B1 19960426; CA 1314587 C 19930316; DD 284099 A5 19901031; DE 68915668 D1 19940707; DE 68915668 T2 19941013; EP 0360627 A1 19900328; EP 0360627 B1 19940601; KR 0143077 B1 19980701; KR 900002392 A 19900228; RU 2062522 C1 19960620; TR 26054 A 19931215; US 4985658 A 19910115
DOCDB simple family (application)
FR 8810116 A 19880727; CA 606818 A 19890727; DD 33110089 A 19890724; DE 68915668 T 19890627; EP 89401837 A 19890627; KR 890010545 A 19890726; SU 4614643 A 19890726; TR 78689 A 19890724; US 38515489 A 19890725