Rainbow hologram is a very important technology in holographicdisplays. It can be reconstructed by white light source.
彩虹全息是全息显示中一种十分重要的能用白光再现的全息术，然而加入狭缝后降低了光能的使用率。
2
It includes such futuristic treats as self-cleaning kitchen counters, a fridge and oven with 3d holographicdisplays and an ultra-sci-fi 3d food printer.
它包括了作为自清洁厨柜、冰箱和3d全息显示和超科幻3d食物打印机。如此的未来感。
3
The system currently works in just one colour. However, the scientists have previously developed colour holographicdisplays that refresh at a faster rate.