aplanat

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English

Noun

aplanat (plural aplanats)

  1. (optics) A lens that has been corrected for spherical aberration and coma in order to produce a rectilinear image.
    • 1894, W. K. Burton, “The Zeiss Anastigmatic Lenses”, in Julius F. Sachse, editor, American Journal of Photography, Volume XV, page 4:
      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.
    • 2009, Gérard René Lemaitre, Astronomical Optics and Elasticity Theory, Springer, Astronomy and Astrophysics Library, Corrected 3rd printing, page 11,
      which is totally false since he established the algebraic conditions for thin-lens achromatic aplanats;
    • 2014, J. F. James, An Introduction to Practical Laboratory Optics, Cambridge University Press, page 171:
      Some infra-red detectors are sold already embedded in a plastic aplanat.

Translations

See also

Further reading

Catalan

Participle

aplanat (feminine aplanada, masculine plural aplanats, feminine plural aplanades)

  1. past participle of aplanar

French

Noun

aplanat m (plural aplanats)

  1. aplanat

Further reading

Polish

Polish Wikipedia has an article on:
Wikipedia pl

Etymology

Borrowed from German Aplanat, from Ancient Greek ἁπλοῦς (haploûs). Doublet of apla.

Pronunciation

  • IPA(key): /aˈpla.nat/
  • Audio:(file)
  • Rhymes: -anat
  • Syllabification: a‧pla‧nat

Noun

aplanat m inan

  1. (optics) aplanat, aplanatic lens

Declension

Declension of aplanat
singular plural
nominative aplanat aplanaty
genitive aplanatu aplanatów
dative aplanatowi aplanatom
accusative aplanat aplanaty
instrumental aplanatem aplanatami
locative aplanacie aplanatach
vocative aplanacie aplanaty

Derived terms

adjective

Further reading

  • aplanat in Polish dictionaries at PWN

Romanian

Etymology

Past participle of aplana.

Noun

aplanat n (plural aplanaturi)

  1. calming

Declension

singular plural
indefinite definite indefinite definite
nominative-accusative aplanat aplanatul aplanaturi aplanaturile
genitive-dative aplanat aplanatului aplanaturi aplanaturilor
vocative aplanatule aplanaturilor

Verb

aplanat (past participle of aplana)

  1. past participle of aplana

References

  • aplanat in Academia Română, Micul dicționar academic, ediția a II-a, Bucharest: Univers Enciclopedic, 2010. →ISBN
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