| 摘要 |
A wireless input device is provided to be used in a television or board for an interactive communication within long and short distance. A wireless input device(100) comprises a screen(110), an optical division array(120), a light source(200), and a light receiving arrays(131,132,133). The optical division array has a plurality of beam splitters. The optical division array is located in the rearward of screen. The light source produces the indication light. The light source outputs the generated indication light as described above to the optical division array through screen. The light receiving array detects the indication light divided in the optical division array. |
