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concave lens

/ˈkɒnkeɪv lɛnz/

翻译: 中间薄、边缘厚的透镜,使光线发散。用于矫正近视以及各种光学仪器中。

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phrase

/ˈkɒnkeɪv lɛnz/C1formalscientific
  • zh中间薄、边缘厚的透镜,使光线发散。用于矫正近视以及各种光学仪器中。

A lens that is thinner at the center than at the edges, causing light rays to diverge or spread out. It is used in optics to correct nearsightedness and in various optical instruments.

  1. Optical lens typeB2formal

    A lens that is thinner at the center than at the edges, causing light rays to diverge.

    zh凹透镜

    • A concave lens is used in eyeglasses to correct nearsightedness.
    • The telescope uses a concave lens to spread out the light.
    • In the experiment, the concave lens made the image appear smaller.