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1: Imaging by a lens with chromatic aberration. 2: A lens with less chromatic aberration
In optics, aberration is a property of optical systems, such as lenses, that causes light to be spread out over some region of space rather than focused to a point.[1] Aberrations cause the image formed by a lens to be blurred or distorted, with the nature of the distortion depending on the type of aberration. Aberration can be defined as a departure of the performance of an optical system from the predictions of paraxial optics.[2] In an imaging system, it occurs when light from one point of an object does not converge into (or does not diverge from) a single point after transmission through the system. Aberrations occur because the simple paraxial theory is not a completely accurate model of the effect of an optical system on light, rather than due to flaws in the optical elements.[3]
An image-forming optical system with aberration will produce an image which is not sharp. Makers of optical instruments need to correct optical systems to compensate for aberration.
Aberration can be analyzed with the techniques of geometrical optics. The articles on reflection, refraction and caustics discuss the general features of reflected and refracted rays.
^Kirkpatrick, Larry; Wheeler, Gerald (1992). Physics: A World View (2nd ed.). Philadelphia: Harcourt Brace College Publishers. p. 410. ISBN 0-03-000602-3.
^Guenther, Robert (1990). Modern Optics. Cambridge: John Wiley & Sons Inc. p. 130. ISBN 0-471-60538-7.
^"Comparison of Optical Aberrations". Edmund Optics. Archived from the original on December 6, 2011. Retrieved March 26, 2012.
and 22 Related for: Optical aberration information
In optics, aberration is a property of optical systems, such as lenses, that causes light to be spread out over some region of space rather than focused...
In optics, chromatic aberration (CA), also called chromatic distortion, color aberration, color fringing, or purple fringing, is a failure of a lens to...
In optics, spherical aberration (SA) is a type of aberration found in optical systems that have elements with spherical surfaces. This phenomenon commonly...
Defocus aberration, in which an image is out of focus Opticalaberration, an imperfection in image formation by an optical system Relativistic aberration, the...
other optical system, suffers from a number of specific opticalaberrations. The optical quality of the eye is limited by opticalaberrations, diffraction...
curvature, named for Joseph Petzval, describes the opticalaberration in which a flat object normal to the optical axis (or a non-flat object past the hyperfocal...
unambiguous picture is provided by the optical transfer function. Optical systems, and in particular opticalaberrations are not always rotationally symmetric...
conditions. Simple lenses are subject to the opticalaberrations discussed above. In many cases these aberrations can be compensated for to a great extent...
(corrector plate) and mirror as primary optical elements, mainly used for wide field imaging without spherical aberration.[citation needed] The late 20th century...
In optics, defocus is the aberration in which an image is simply out of focus. This aberration is familiar to anyone who has used a camera, videocamera...
opposite to where the rays entered. Ball lenses have extremely high opticalaberration, including large amounts of coma and field curvature compared to conventional...
a number of optical lens elements is required to correct (as much as possible) the many opticalaberrations that arise. Some aberrations will be present...
atmospheric distortion, in microscopy, optical fabrication and in retinal imaging systems to reduce opticalaberrations. Adaptive optics works by measuring...
of the fiber, and must not introduce aberrations in the beam. Aspheric lenses are typically used. At high optical intensities, above 2 megawatts per square...
the time, ordinary soda-lime glass, was unable to compensate for opticalaberrations. However, it evolved slowly over the centuries. It was first lightened...
consequently wider aberration-free field of view. Their designs can have simple all-spherical surfaces and can take advantage of a folded optical path that reduces...
image stitching, alpha compositing, black point compensation, and opticalaberration corrections. Working in Affinity Photo is always live, with pan and...
photographic lens completely corrected for the three main opticalaberrations: spherical aberration, coma, and astigmatism. Early lenses often included the...
important issue in zoom lens design is the correction of opticalaberrations (such as chromatic aberration and, in particular, field curvature) across the whole...
are called a stigmatic pair of the optical system. Many optical systems, even those exhibiting opticalaberrations, including astigmatism, have at least...
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