collimator

Valid in Scrabble

Definition of collimator

3 senses · 1 part of speech · etymology included

noun

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

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noun

An optical device that generates a parallel beam of light. Often used to compensate for laser beam divergence.
A similar device that produces a parallel beam of particles such as neutrons.
A small telescope attached to a larger one, used to point it in the correct general direction.

Definitions from Wiktionary, CC BY-SA.

From collimate + -or.

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