| 摘要 |
A mouse for increasing the degree of freedom of a mouse motion and easily facilitating manipulation is provided to reduce pain in finger and wrist and to reduce frictional force although the mouse is used for a long time. A mouse ball(400) includes an optical sensor sensing a location shift. A support part(500) is transmitted to an information terminal device(200) and inputs signal about the location shift of the mouse ball. A mouse ball and a support part have magnetic character. The mouse floats on so that polarity of the mouse ball and the polarity of the support part are identical. The mouse ball includes permanent magnet inside the mouse ball. |
