EP 0628983 A4 19950607 - ELECTRON GUN FOR COLOR IMAGE RECEIVING TUBE.
Title (en)
ELECTRON GUN FOR COLOR IMAGE RECEIVING TUBE.
Title (de)
ELEKTRONENKANONE FÜR FARBBILDRÖHRE.
Title (fr)
CANON A ELECTRONS POUR TUBE RECEPTEUR D'IMAGES COULEUR.
Publication
Application
Priority
- KR 920028105 U 19921231
- KR 9300118 W 19931228
Abstract (en)
[origin: EP0628983A1] The focusing characteristic of this electron gun is not impaired by the aberration caused by the deviation of the centers of the holes on both sides of the main lens, through which the electron beams are passed, and the astigmatism of the electron beams due to the uneven magnetic field such as of a deflecting yoke when the electron gun is in operation. In the focusing electrode (1) of the electron gun, a plurality of focusing grooves are formed in parallel with the direction in which the electron beams are passed. A plurality of additional electrode members, each consisting of a flat thin plate, are inserted into the focusing grooves, respectively. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 29/62 (2006.01)
CPC (source: EP)
H01J 29/628 (2013.01)
Citation (search report)
- [X] US 4208610 A 19800617 - SCHWARTZ JAMES W [US]
- [X] US 4498026 A 19850205 - YAMAUCHI MASAAKI [JP], et al
- [X] DE 3614700 A1 19861106 - HITACHI LTD [JP]
- [A] EP 0241218 A2 19871014 - MITSUBISHI ELECTRIC CORP [JP]
- [X] PATENT ABSTRACTS OF JAPAN vol. 009, no. 027 (E - 294) 6 February 1985 (1985-02-06)
- [A] PATENT ABSTRACTS OF JAPAN vol. 011, no. 117 (E - 498) 11 April 1987 (1987-04-11)
- See references of WO 9416457A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 94903111 A 19931228