| 摘要 |
A pointing device capable of being reduced in size and height, small in density of magnetic flux leaking to the outside, long in product life, and good in operability. Two each of magnetic sensors (21) are disposed symmetrically on a mounting substrate (24) along the X-axis and the Y-axis. A silicone resin (23) is disposed on the mounting substrate (24), and an annular magnet (22) single-pole- magnetized at the inner and the outer sides is disposed in the almost center of the magnetic sensors (21). The silicone resin (23) is not bonded to the mounting substrate (24). The silicone resin (23) is easily deformed when applied with an external force, and is immediately restored to a non-loaded initial state when the external force is removed. The annular magnet (22) is so constructed as to move in almost parallel to the surface of the mounting substrate (24). A change in surrounding magnetic flux density caused by the movement of the annular magnet (22) is detected by the magnetic sensors (21) to output the coordinates values of an input point.
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