optical aberration

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Related to Aberration, optical: spherical aberration, Spherical aberrations

optical aberration

[′äp·tə·kəl ‚ab·ə′rā·shən]
(optics)
Deviation from perfect image formation by an optical system; examples are spherical aberration, coma, astigmatism, curvature of field, distortion, and chromatic aberration. Also known as aberration.