Collimator (Noun)
Meaning 1
A small telescope attached to a large telescope to use in setting the line of the larger one.
Classification
Nouns denoting man-made objects.
Hypernyms
Related Words
Meaning 2
Optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam.
Classification
Nouns denoting man-made objects.