| 摘要 |
The optical position detecting device includes a plurality of light source sections, a camera section, a detection section and a control section. Each of the plurality of light source sections emits light to irradiate a predetermined region of the detection surface. The camera section has an angle of view capable of imaging the entire surface of the detection surface and images an image the indicator body irradiated by the light source sections. The detection section calculates an indicated position of the indicator body. The control section is adapted to turn on the plurality of light source sections simultaneously or in a predetermined sequence at time of initial scan and, once the indicated position of the indicator body is detected by the detection section, turns on the light source section irradiating a range covering the detected indicated position of the indicator body but turns off all the remaining light source sections. |
