Porro prisms

A form of Porro prism — 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.

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Meanings

noun
  1. pluralplural of Porro prism
Cite this entry
APA

Porro prisms. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Porro%20prisms

MLA

“Porro prisms.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Porro%20prisms. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Porro prisms,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Porro%20prisms.

Source: Porro prisms on Wiktionary, CC BY-SA 4.0.