| 摘要 |
PURPOSE:To extend the width of an information input and to simplify the operation a rubber eraser, by constituting a titled device so that extending information corresponding to force applied to a light pen can be inputted by adding it to position information. CONSTITUTION:When force is put onto a transparent plastic rod 4 and it is moved against the force of a spring 7, a permanent magnet 6 moves and a magnetic field to a magnet detecting element 8 is varied. A moving extent of the transparent plastic rod 4 is detected from the variation of this magnetic field and is sent as an electric signal to an electronic computer. As a result, extension corresponding to said moving extent is indicated onto a CRT picture, and an input is executed. In this case, a picture on the CRT is known at a real time, therefore, pressure is applied to a light pen, seeing the picture, so that it is locked at a part of desired extension. |
