Word.ws English Dictionary

aplanat

aplanat noun: a lens that has been corrected for spherical aberration and coma in order to produce a rectilinear image.

Noun

aplanat (plural aplanats)

  1. A lens that has been corrected for spherical aberration and coma in order to produce a rectilinear image.
    • For comparison, an aplanat of a focus catalogued at 16 inches, actually found by experiment to have a focus of 16 11-16 inches, was used.1894, W. K. Burton, “The Zeiss Anastigmatic Lenses”, in Julius F. Sachse, editor, American Journal of Photography, Volume XV, page 4
    • […] which is totally false since he established the algebraic conditions for thin-lens achromatic aplanats;2009, Gérard René Lemaitre, Astronomical Optics and Elasticity Theory, Springer, Astronomy and Astrophysics Library, Corrected 3rd printing, page 11

Forms of aplanat

pluralaplanats

Questions about aplanat

What does aplanat mean?
Aplanat means a lens that has been corrected for spherical aberration and coma in order to produce a rectilinear image.
What part of speech is aplanat?
Aplanat is a noun.
What is the plural of aplanat?
The plural of aplanat is aplanats.

Words near aplanat in the dictionary

  1. apkallus
  2. APL
  3. aplacental
  4. aplacophoran
  5. aplacophorans
  6. aplanat
  7. aplanatic
  8. aplanatism
  9. aplanats
  10. aplano-
  11. aplanochytrid

Source and license

Adapted from Wiktionary: aplanat (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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