| 摘要 |
PROBLEM TO BE SOLVED: To provide a screen that can reduce speckle and moire.SOLUTION: A screen 1 comprises: a first reflection surface 11 that has a plurality of optical elements each composed of a microlens 11a arranged thereon; and a second reflection surface 13 that has a plurality of optical elements each composed of a microlens 13a arranged thereon. The first reflection surface 11 and the second reflection surface 13 are arranged opposite to each other. On at least one of the first reflection surface 11 and the second reflection surface 13, the microlenses 11a or the microlenses 13a are irregularly arranged.SELECTED DRAWING: Figure 1 |
