aplanatic definition

  • adjective:
    • Of or regarding optical methods that correct for spherical aberration.
    • Free from, or corrected for, spherical aberration and chromatic aberration
    • Having several components of different curvatures, so combined regarding pull spherical aberration; -- stated of a lens.
    • clear of or corrected for spherical aberration
  • others:
    • Without aberration: in optics, applied to a lens or combination of contacts, as with a telescope, which brings parallel rays to a focus without spherical or chromatic aberration.

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    • (An aplanatic triplet will be found…
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