Porro prism

名词 n.
中文释义

英文释义

名词 n.
  1. A reflection prism used in optical instruments to alter the orientation of an image. It consists of a block of glass shaped as a right geometric prism with right-angled triangular end faces.

词形变化

Porro prisms plural

词源

Named after its inventor, Ignazio Porro.
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