collimator是什么意思

n.瞄准仪

1. The high-energy physics experiment required the use of a collimator to ensure that the particles were properly aligned.
2. The collimator in the telescope helped to focus the light and improve the clarity of the images.

a device used to align light or particles into a straight beam or parallel rays, typically consisting of a tube with a narrow slit or a set of mirrors.