| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To detect a two-dimensional position of a detected object by a simple structure. <P>SOLUTION: In this position detector, a detection area 3 is arranged on a screen of a liquid crystal display 2, mirrors 6 are arranged face to face on the left and right sides of the detection area 3, and a camera unit 5A is arranged on one side orthogonal to the sides for arranging the mirrors 6. The camera unit 5A is provided with an optical linear sensor 7 and a pinhole 8. In the position detector, when an optional position of the detection area 3 is pointed by a pointing rod 4, a real image of the detected object 4 is detected by the optical linear sensor 7. Mapping 4a of the detected object 4 reflected by the mirror 6 is detected by the optical linear sensor 7. Using positional information about the real image and the mapping of the detected object in the optical linear sensor 7, the two-dimensional position of the pointing rod 4 in the detection area is found. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
