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Encyclopedia > Aberration

Aberration (Latin ab, from or away + errare, to wander), a deviation or wandering, especially used in the figurative sense as: Latin is the language originally spoken in the region around Rome called Latium. ...

  1. In ethics, a deviation from the truth.
  2. In pathology, a mental derangement.
  3. In zoology and botany, abnormal development or structure.
  4. In optics, the word has two special applications:
4.1 Aberration of light, also referred to as astronomical aberration or stellar aberration.
4.2 Aberration in optical systems, see also the article on lenses.

  Results from FactBites:
 
Imatest - Chromatic aberration (937 words)
The visibility of the chromatic aberration is proportional to the
To deal with these issues Chromatic aberration is measured in percentage of the distance from the image center to the corner (percentage of sensor diagonal/2), corrected for the angle of the ROI with respect to the center.
Because Chromatic Aberration cannot be measured accurately near the image center, the chart is rendered in pale colors with the Region of Interest (ROI) is less than 30% of the distance from the center to the corner.
AllRefer.com - aberration (Physics) - Encyclopedia (301 words)
Spherical aberration is caused by the failure of a lens or mirror of spherical section to bring parallel rays of light to a single focus.
Spherical aberration can be prevented by using a parabolic rather than a spherical section, but this involves much greater complexity and expense in lens or mirror construction.
Chromatic aberration results in the blurred coloring of the edge of an image when white light is sent through a lens.
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