Jisho

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Noun
1. collimator
Wikipedia definition
2. CollimatorA collimator is a device that 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 or to cause the spatial cross section of the beam to become smaller.
Read “Collimator” on English Wikipedia
Read “コリメーター” on Japanese Wikipedia
Read “Collimator” on DBpedia

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