| 摘要 |
A device for positioning and control of computer cursors and other objects is described, where the device's control module comprise a stick (2) that is attached to a guide plate (3) which is freely movable in the X-Y plane; where the movement of the control module is detected by means of a sensor system that utilises laser beams or other forms of narrowly focused light and a reflector plane that on its surface contains non-overlapping grids consisting of non-reflecting stripes, in addition to photosensors that can detect reflected light pulses when the laser beams traverse the grids. |
