EP 0415125 A1 19910306 - Cathode ray tube.
Title (en)
Cathode ray tube.
Title (de)
Kathodenstrahlröhre.
Title (fr)
Tube à rayons cathodiques.
Publication
Application
Priority
- JP 25210589 A 19890929
- JP 20244689 A 19890804
Abstract (en)
In a cathode ray tube, a first pair of permanent magnet pieces (27a, 27b) are arranged along a horizontal direction and fixed on an end portion (26) of a deflection unit (9) at an electron gun side in such a manner that poles of one of magnet pieces (27a, 27b) are faced to the other poles of the other magnet pieces (27a, 27b). A second pair of permanent magnet pieces (29a, 29b) are arranged along a vertical direction, separated from the first pair of permanent magnet pieces (27a, 27b) toward electron gun assembly (20) and fixed on a neck portion (6) in such a manner that poles of one of magnet pieces (29a, 29b) are also faced to the other poles of the other magnet pieces (29a, 29b).
IPC 1-7
IPC 8 full level
H01J 29/56 (2006.01); H01J 29/70 (2006.01); H01J 29/76 (2006.01)
CPC (source: EP KR)
H01J 29/566 (2013.01 - EP); H01J 29/70 (2013.01 - KR); H01J 29/703 (2013.01 - EP); H01J 29/76 (2013.01 - EP)
Citation (search report)
- [A] US 4197487 A 19800408 - HAMANO EIZABURO [JP], et al
- [A] US 4818919 A 19890404 - KOBAYASHI KENICHI [JP], et al
- PATENT ABSTRACTS OF JAPAN, unexamined applications, E field, vol. 12, no. 77, March 10, 1988 THE PATENT OFFICE JAPANESE GOVERNMENT page 136 E 589 * JP - A - 62 -217 546 ( MATSUSHITA ELECTRONICS )*
- PATENT ABSTRACTS OF JAPAN, unexamined applications, E field, vol. 11, no. 275, September 5, 1987 THE PATENT OFFICE JAPANESE GOVERNMENT page 85 E 537 * JP - A - 62 - 76 140 ( MITSUBISHI ELECTRIC ) *
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0415125 A1 19910306; EP 0415125 B1 19961023; CN 1018408 B 19920923; CN 1049751 A 19910306; DE 69028968 D1 19961128; DE 69028968 T2 19970403; KR 910005366 A 19910330; KR 930004108 B1 19930520
DOCDB simple family (application)
EP 90114987 A 19900803; CN 90106746 A 19900804; DE 69028968 T 19900803; KR 900012025 A 19900803