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Collimator vs. Collimation

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Collimatornoun

(physics) An optical device that generates a parallel beam of light. Often used to compensate for laser beam divergence.

Collimationnoun

the act of collimating or something collimated

Collimatornoun

(physics) A similar device that produces a parallel beam of particles such as neutrons.

Collimationnoun

aligning lenses along line of sight to minimize aberrations

Collimatornoun

(astronomy) A small telescope attached to a larger one, used to point it in the correct general direction.

Collimationnoun

The act of collimating; the adjustment of the line of the sights, as the axial line of the telescope of an instrument, into its proper position relative to the other parts of the instrument.

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Collimatornoun

A telescope arranged and used to determine errors of collimation, both vertical and horizontal.

Collimationnoun

the accurate adjustment of the line of sight of a telescope

Collimatornoun

A tube having a convex lens at one end and at the other a small opening or slit which is at the principal focus of the lens, used for producing a beam of parallel rays; also, a lens so used.

Collimatornoun

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

Collimatornoun

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

Collimator

A collimator is a device which narrows a beam of particles or waves. To narrow can mean either to cause the directions of motion to become more aligned in a specific direction (i.e., make collimated light or parallel rays), or to cause the spatial cross section of the beam to become smaller (beam limiting device).

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