I use different types of colored lights shining through the crystals, so the ice structures act like complexlenses to refract the light in different ways.
我利用不同颜色的光照射晶体,冰晶结构就像复杂的棱镜一样将光线折射到不同的方向。
2
Reflections from Windows and eyeglasses produce superimposed views, and complex optical systems, such as camera lenses, can turn point sources of light into apparently saucer-shaped phenomena.
The low-temperature eclogites from the subduction-accretionary complex in the North Qilian Mountain occur as lenses within blueschists and phengite-schists.