Word.ws English Dictionary

fold mirror

fold mirror noun: an mirror used to bend an optical path so that it can be made longer than the physical size of the system.

Noun

fold mirror

  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

Questions about fold mirror

What does fold mirror mean?
Fold mirror means an mirror used to bend an optical path so that it can be made longer than the physical size of the system.
What part of speech is fold mirror?
Fold mirror is a noun.

Words near fold mirror in the dictionary

  1. fold flats
  2. fold like a cheap suit
  3. fold like a cheap suitcase
  4. fold like a cheap tent
  5. fold like a lawn chair
  6. fold mirror
  7. fold mountain
  8. fold net
  9. fold nets
  10. fold one's arms
  11. fold one's tent

Source and license

Adapted from Wiktionary: fold mirror (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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