English dictionary
collimator
/'k/A/l/@/,m/eI/t/@/r/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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a small telescope attached to a large telescope to use in setting the line of the larger one
Source: WordNet 3.0
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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
Source: WordNet 3.0
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A telescope arranged and used to determine errors of collimation, both vertical and horizontal.
Source: webster1913