Definition of plano-concave in English:

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plano-concave

Pronunciation: /ˌplānōˌkänˈkāv/ /-ˈkänˌkāv/

adjective

(Of a lens) with one surface plane and the opposite one concave.
Example sentences
  • Plano-concave axicons are made of a plano surface in combination with a concave conical surface.
  • This tutorial explores lens action in plano-concave lenses when the object faces the flat side of the lens.
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