| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic shield device for a portable radio device.SOLUTION: Each one side of two radio wave shield members 1 and 3 for shielding an electromagnetic wave radiated from a portable radio device 5 is rotatably screwed. On the two radio wave shield members, polarization shield slits 2 and 4 are respectively formed to shield one of horizontal polarization and vertical polarization. In a state in which the two radio wave shield members are overlapped at the rear face of the portable radio device, the polarization shelter slits 2 and 4 are disposed in non-overlapped positions. In this state, the electromagnetic wave radiated to the rear face of the portable radio device is shielded. In a state in which the portable radio device is positioned between the two radio wave shield members, the output of the electromagnetic wave radiated on the display surface and the rear face of the portable radio device, respectively, is reduced to a half. |
