Synonyms

1. collimator

noun. 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.

Synonyms

  • spectroscope
  • prism spectroscope

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2. collimator

noun. a small telescope attached to a large telescope to use in setting the line of the larger one.

Synonyms

  • scope

Example sentences of the word collimator


1. Noun, singular or mass
Ghilani and Wolf claim that a key feature of a theodolite is its collimator -- a device that narrows a beam of light.

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