Say we have a lens that has a spherical face on both sides, known as a convex lens.

假设我们有一个具有球头 两侧，称为凸。

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.

这是通过一种叫做柱东西实现，柱是一种波纹薄板，其每个凸起处都由凸（即向外弯曲）组成。