公开(公告)号：US4839568A

公开(公告)日：1989-06-13

申请号：US101787

申请日：1987-09-28

申请人： Alain Dumesnil ,  Jean-Marc Perreaut

发明人： Alain Dumesnil ,  Jean-Marc Perreaut

IPC分类号： H01J29/76 ,  H01J31/20

CPC分类号： H01J31/206 ,  H01J29/762 ,  H01J2229/7031 ,  H01J2229/964

摘要： A magnetic deflector of the saddle-saddle type, for a trichromatic tube protected by a shield, with in-line guns and round-luminophor type screen, is designed to function with a saddle-torus type of magnetic deflector. The invention uses a saddle-saddle type of deflector in which the front leading-out wires have been reduced and the rear leading-out wires are laid flat. Furthermore, the ferrite piece is extended by a ring which surrounds the rear leading-out wires and is magneticlaly closed by a ferrite ring bearing a quadrupole coil powered by a parabolic current. The intention can be applied to round-luminiphor trichromatic tubes fitted with an external shield.

摘要翻译： 马鞍型电磁导流器，用于由屏蔽罩保护的三色管，具有直列式枪和圆形发光体型屏幕，被设计成与鞍形环形磁导型器一起工作。 本发明使用鞍座式偏转器，其中前导出线已经被减小，并且后导出线被平放。 此外，铁氧体片通过围绕后引出线的环延伸，并且由带有由抛物线电流供电的四极线圈的铁氧体环磁性闭合。 该意图可以应用于装有外部屏蔽的圆形发光三色管。

公开(公告)号：US5465026A

公开(公告)日：1995-11-07

申请号：US41390

申请日：1993-04-01

申请人： Bruno Roussel ,  Alain Dumesnil

发明人： Bruno Roussel ,  Alain Dumesnil

IPC分类号： H01J29/76 ,  H01J29/82

CPC分类号： H01J29/826 ,  H01J29/76

摘要： A deflection yoke includes a first core portion and a core extension portion. The core extension portion is located in the rear of the yoke closer to the beam entrance region. To adjust the yoke for the particular cathode ray tube on which it is mounted, the position of the yoke is adjusted for obtaining acceptable image geometry. Then, the core extension is moved with respect to the first core portion in a direction perpendicular to the longitudinal axis of the tube to obtain convergence symmetry while the position of the first core portion remains the same. In this way, convergence symmetry adjustment is accomplished separately from image geometry adjustment.

摘要翻译： 偏转线圈包括第一芯部分和芯部延伸部分。 芯部延伸部位于靠近光束入射区域的轭的后部。 为了调整其安装在其上的特定阴极射线管的磁轭，调整磁轭的位置以获得可接受的图像几何形状。 然后，芯部延伸部在垂直于管子的纵向轴线的方向相对于第一芯部分移动，以获得会聚对称性，同时第一芯部分的位置保持相同。 以这种方式，会聚对称调整与图像几何调整分开完成。

公开(公告)号：US5847503A

公开(公告)日：1998-12-08

申请号：US942525

申请日：1997-10-02

申请人： Bruno Francis Roussel ,  Alain Dumesnil

发明人： Bruno Francis Roussel ,  Alain Dumesnil

IPC分类号： H01J29/76 ,  H01J29/70 ,  H01F7/00 ,  H01H1/00 ,  H01H5/00

CPC分类号： H01J29/762 ,  H01J2229/7033

摘要： A deflection device for a cathode-ray tube with three coplanar guns, comprising a pair of horizontal deflection coils and a pair of vertical deflection coils, each horizontal deflection coil having a main deflection winding extending over the length of the deflection device, and an auxiliary deflection winding. Each main deflection winding has a front portion and a rear portion. The auxiliary deflection winding is disposed in the front portion of the main deflection winding and is arranged to generate a magnetic field opposed to a field of the main deflection winding. Each of the auxiliary windings has conductors arranged laterally about a mean angle from a horizontal deflection axis, the mean angle varying as a function of the position of the conductors along a longitudinal axis of the deflection device such that, in the front portion of each of the main deflection windings of the pair of horizontal deflection coils, an amplitude of the third-order harmonic of the Fourier series decomposition of the angular distribution of the ampere-turn density is substantially equal to or greater than that of the fundamental.

摘要翻译： 一种用于具有三个共面枪的阴极射线管的偏转装置，包括一对水平偏转线圈和一对垂直偏转线圈，每个水平偏转线圈具有在偏转装置的长度上延伸的主偏转绕组，以及辅助 偏转绕组。 每个主偏转绕组具有前部和后部。 辅助偏转绕组设置在主偏转绕组的前部，并且被布置成产生与主偏转绕组的场相对的磁场。 每个辅助绕组具有围绕水平偏转轴平均角度横向布置的导体，平均角度作为导体沿着偏转装置的纵向轴线的位置的函数而变化，使得在每个的前部中 一对水平偏转线圈的主偏转绕组，安匝数密度的角分布的傅立叶级数分解的三次谐波的振幅基本上等于或大于基波的角分布的三次谐波的振幅。