optical flats

A form of optical flat — A disk of high-quality quartz glass having at least one side ground and polished with a deviation in flatness less than 50 nanometers all over, and a surface quality of 5 microfinish or less; used, in an interferometer, to measure the flatness of other surfaces.

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Meanings

noun
  1. pluralplural of optical flat
Cite this entry
APA

optical flats. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/optical%20flats

MLA

“optical flats.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/optical%20flats. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “optical flats,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/optical%20flats.

Source: optical flats on Wiktionary, CC BY-SA 4.0.