collimator

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• 27. februar 2016 fra wordnet.princeton.edu

  collimator — navneord — engelsk

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

• 27. februar 2016 fra wordnet.princeton.edu

  collimator — navneord — engelsk

  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