English noun: collimator | |||
1. | collimator (artifact) a small telescope attached to a large telescope to use in setting the line of the larger one | ||
Broader (hypernym) | scope, telescope | ||
2. | collimator (artifact) 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 | ||
Broader (hypernym) | optical device | ||
Part meronym | prism spectroscope, spectroscope | ||