| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical two-dimensional coordinate detection device for detecting the coordinates of a plurality of objects in a two-dimensional coordinate area.SOLUTION: A coordinate detection device 1 detects a coordinate group as a collection of one or more coordinates from one or more scanning angles detected by all optical devices 3, 4 and 5, and from one or more scanning angles detected by each of selected two optical devices (3 and 4, 3 and 5, 4 and 5) in each of three combinations when selecting two from all optical devices 3, 4, and 5, and detects two coordinates P1 and P2 commonly included in the three coordinate groups detected in accordance with the three combinations as the coordinates of objects O1 and O2. |
