发明名称 |
DEFLECTION YOKE FOR A CATHODE-RAY TUBE WITH BOTH IMPROVED GEOMETRY AND CONVERGENCE |
摘要 |
A deflection yoke mounted on a neck of a cathode-ray tube includes a pair of horizontal deflection coils, a pair of vertical deflection coils and a core (20) of a ferromagnetic material. The core has magnetic reluctance, in a front region, close to a screen end of the tube, that is greater along the vertical direction than along the horizontal direction. In one embodiment of the invention this feature is achieved by making recesses (24) at the intersection of a flared front part (21) of the core with the horizontal plane of symmetry XZ. In another embodiment of the invention, the thickness (e) of the core varies. |
申请公布号 |
WO9905693(A1) |
申请公布日期 |
1999.02.04 |
申请号 |
WO1998EP04969 |
申请日期 |
1998.07.27 |
申请人 |
THOMSON TUBES AND DISPLAYS, S.A.;AZZI, NACERDINE;MASSON, OLIVIER |
发明人 |
AZZI, NACERDINE;MASSON, OLIVIER |
分类号 |
H01J29/76 |
主分类号 |
H01J29/76 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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