rotating light

基本解释

Marquee experiment: the use of counter rotating light LED lights, to achieve a variety of dynamic effects.
跑马灯实验：利用计数器轮流点亮LED灯，实现各种动态效果。
The measurement result is optimized by using the rotating grating for splitting laser light and producing frequency shift to determine the fluid direction.
采用旋转光栅分束产生频移来辨别流向，使测量最佳化。
Shape, dimension, moving direction, rotating direction and light radiation intensity are important dynamic characteristics of the object in space telemetry and telecontrol video auto-tracking system.
形状、尺寸、运动方向、旋转方向和光辐射强度等变化是航天测控视频自跟踪系统目标的重要动态特性。

Then they zap a cool blue laser beam into a rotating mirror, which refracts the light at a 90-degree angle toward one edge of a 4-inch-long glass slide covered with 15 million white blood cells (all of them invisible to the eye).
FORBES: On The Cover/Top Stories
Inside, an ozone-emitting germicidal light kills bacteria, sanitizing the feathers, while rotating brushes fluff the filling and removes dust.
FORBES: Northern California Hilton Aims To Be Sustainability Leader