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Words, grammatical forms and meanings linked to the ontology.

fold mirror en · NOUN

Meanings

  1. An mirror used to bend an optical path so that it can be made longer than the physical size of the system
    • To achieve this, a plane mirror, which functions as a fold mirror, is positioned at an angle of 45° with respect to the image formed by the primary-secondary mirrors... 1978, D. G. Korsch, Anastigmatic three-mirror telescope, US Patent 4101195 (PDF version), retrieved 27 Dec 2021, page 2: