circle of least confusion

circle of least confusion
the smallest cross section in a beam of paraxial rays, lying in the plane of least spherical aberration.
[1865-70]

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Universalium. 2010.

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  • circle of least confusion — physics : the minimum cross section of a symmetrical bundle of rays that have no common focus because of spherical aberration * * * Optics. the smallest cross section in a beam of paraxial rays, lying in the plane of least spherical aberration.… …   Useful english dictionary

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  • Optical aberration — v · d · e Optical aberration …   Wikipedia

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  • Chromatic aberration — On top is corner detail in a photograph taken with a higher quality lens; bottom is a similar photograph taken with a wide angle lens showing severe visible lateral chromatic aberration. The effect is pronounced on the right side of the building… …   Wikipedia

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