| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical scanning control device capable of reducing speckle noise and interference patterns while minimizing increase in cost.SOLUTION: An optical scanning control device of the present invention comprises scanning means for scanning light emitted from a laser, and a screen for the light scanned by the scanning means to form an image. The screen has a plurality of microlenses arrayed on at least one of light incident- and exit-side surfaces of the screen, the microlenses being arrayed to have random intercentral distance therebetween in at least either of a first direction and a second direction perpendicular to the first direction.SELECTED DRAWING: Figure 6 |
