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  1. Oxford Dictionary

    collimator

    • IPA[ˈkɒlɪmeɪtə]

    英式

    • n.
      a device for producing a parallel beam of rays or radiation.；a small fixed telescope used for adjusting the line of sight of an astronomical telescope.

    • noun: collimator, plural noun: collimators

    • 更多解釋

    collimator

    • IPA[ˈkäləˌmādər]

    美式

    • n.
      a device for producing a parallel beam of rays or radiation.

    Oxford American Dictionary