| 摘要 |
<p>There is provided an electronic pen that reduces reflected waves of supersonic waves from a screen, with a simple structure and there is realized a projector system that improves the position detection precision of the electronic pen. The electronic pen comprises a longitudinal axis-shaped housing body having a pen tip at a tip end portion thereof, a supersonic wave transmitting portion provided inside the housing body relative to the pen tip for generating supersonic waves, an infrared ray transmitting portion arranged adjacent to the supersonic wave transmitting portion for generating an infrared ray, and a supersonic wave guide for reflecting components, toward a pen tip side, among the supersonic waves generated from the supersonic wave transmitting portion.</p> |
