公开(公告)号：US06242856B1

公开(公告)日：2001-06-05

申请号：US09332210

申请日：1999-06-14

申请人： Dirk W. Harberts ,  Hendrik D. Van Den Berg ,  Robert T. M. Doedee

发明人： Dirk W. Harberts ,  Hendrik D. Van Den Berg ,  Robert T. M. Doedee

IPC分类号： H01J2974

CPC分类号： H01J29/76 ,  H01J2229/964

摘要： A cathode ray tube includes a deflection unit. A coil system of the deflection unit is provided with a conductive layer, the value for fmax/&Dgr;f ranging between 0.5 and 10, &Dgr;f being the half-value width of the impedance curve around a peak frequency fmax, and fmax being greater that 1 MHz. This results in a reduction of ringing phenomena.

摘要翻译： 阴极射线管包括偏转单元。 偏转单元的线圈系统设置有导电层，fmax / DELTAf的值在0.5和10之间，DELTAf是围绕峰值频率fmax的阻抗曲线的半值宽度，fmax大于1MHz 。 这导致了振铃现象的减少。