WordReference Random House Unabridged Dictionary of American English © 2020
Dove prism′, [Optics.]
  1. Opticsa prism that inverts a beam of light, often used in a telescope to produce an erect image. Also called  erecting prism, reversing prism, rotating prism. 
  • named after Heinrich west, western. Dove (1803–79), German physicist

'Dove prism' also found in these entries (note: many are not synonyms or translations):
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