Back زيغ لوني Arabic Хроматична аберация Bulgarian Aberració cromàtica Catalan لێڵڕەنگی CKB Chromatická aberace Czech Chromatische Aberration German Χρωματικό σφάλμα Greek Kolora aberacio Esperanto Aberración cromática Spanish Kromaatiline aberratsioon Estonian
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In optics, chromatic aberration (CA), also called chromatic distortion and spherochromatism, is a failure of a lens to focus all colors to the same point.[1] It is caused by dispersion: the refractive index of the lens elements varies with the wavelength of light. The refractive index of most transparent materials decreases with increasing wavelength.[2] Since the focal length of a lens depends on the refractive index, this variation in refractive index affects focusing.[3] Chromatic aberration manifests itself as "fringes" of color along boundaries that separate dark and bright parts of the image.
- ^ Marimont, D. H.; Wandell, B. A. (1994). "Matching color images: The effects of axial chromatic aberration" (PDF). Journal of the Optical Society of America A. 11 (12): 3113. Bibcode:1994JOSAA..11.3113M. doi:10.1364/JOSAA.11.003113. Archived from the original (PDF) on 2016-03-05. Retrieved 2015-08-28.
- ^ Thibos, L. N.; Bradley, A; Still, D. L.; Zhang, X; Howarth, P. A. (1990). "Theory and measurement of ocular chromatic aberration". Vision Research. 30 (1): 33–49. doi:10.1016/0042-6989(90)90126-6. PMID 2321365. S2CID 11345463.
- ^ Kruger, P. B.; Mathews, S; Aggarwala, K. R.; Sanchez, N (1993). "Chromatic aberration and ocular focus: Fincham revisited". Vision Research. 33 (10): 1397–411. doi:10.1016/0042-6989(93)90046-Y. PMID 8333161. S2CID 32381745.