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Dove prism

See more synonyms for Dove prism on Thesaurus.com
noun Optics.
  1. a prism that inverts a beam of light, often used in a telescope to produce an erect image.
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Origin of Dove prism

named after Heinrich W. Dove (1803–79), German physicist
Also called erecting prism, reversing prism, rotating prism.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018