| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve a virtual input interface that can detect the inclination of an object located on a projection area in the row scanning direction of laser beams.SOLUTION: An input device includes a light source, laser beam scanning unit, light detection unit, and inclination determination unit. The light source emits laser beams, and the laser beam scanning unit scans a plurality of rows of laser beams projected in a projection area on a projection surface. The light detection unit detects reflection light of the laser beams reflected on an object located above the projection area. The inclination determination unit determines the inclination of the object with respect to the projection surface in the row scanning direction of the laser beams on the basis of the amount of change in the timing at which the light detection unit detects the reflection light.</p> |
