| 摘要 |
An electromagnetic pointer comprising a pen tip, a first and second ferrite cores, a coil surrounding the first ferrite core, a core holder, a circuit board holder and a circuit board is disclosed. The pen tip penetrates through the first ferrite core. The surface of one end of the core holder has a first thread thereon. An elastomer and a touch pin are configured in the core holder. The touch pin extends out from the end with the first thread of the core holder. The inner surface of one end of the circuit board holder has a second thread so that the core holder is able to be screwed into the circuit board holder. The circuit board has a plurality of conductive terminals on one end thereof. The conductive terminals are configured adjacent the touch pin. A conductive device is between the conductive terminals and the touch pin. |
