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Prism vs Pentaprism - What's the difference?

prism | pentaprism |

As nouns the difference between prism and pentaprism

is that prism is a polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides while pentaprism is a five-sided prism used in the viewfinder of some single-lens reflex cameras.

prism

English

Noun

(en noun)
  • (geometry) A polyhedron with parallel ends of the same size and shape, the other faces being parallelogram-shaped sides.
  • A transparent block in the shape of a prism (typically with triangular ends), used to split or reflect light.
  • A crystal in which the faces are parallel to the vertical axis.

    • Derived terms

    * antiprism * Nicol prism * prismatic * prismatically * prismatoid * primoid * prismatoid * triangular prism

    pentaprism

    English

    (wikipedia pentaprism)

    Noun

    (en noun)
  • (photography) A five-sided prism used in the viewfinder of some single-lens reflex cameras