This is made possible through something called a lenticular lens – a corrugated sheet in which each ridge is made up of a convex – or outward-curving – lens.

这是通过种叫做柱状透镜的东西实现的，柱状透镜是种波纹状的，每个凸起处都由凸透镜（即向外弯曲的透镜）组。

Chu demonstrated the " invisibility" at the event, and he made his legs disappear directly with the help of a magical material called " lenticular grating" that allows light to be refracted regularly.

褚在活动现场演示了 " 隐形" ，他助种名为 “柱镜光栅”的神奇材料，让光线有规律地折射，直接让自己的双腿消失了。

When multiple of these lenticular sheets with different lens distributions are layered in just the right way, they are able to refract light at a myriad different angles to create " dead spots " .

将许多这种在不同位置配有透镜的柱状透镜以适当的方式分层堆放，就能折射出千千万万种光线角度，从而制造视觉" 死角" 。