noun[mass noun] Optics
The effect produced by the refraction of different wavelengths of light through slightly different angles, resulting in a failure to focus.
- Typical aberrations that can impact imaging performance include astigmatism, chromatic aberration, and spherical aberration.
- For instance, a white-light profilometer system uses chromatic aberration or an interferometry and phase shift technique to measure surface roughness to 1 nm.
- The effects of spherical and chromatic aberration increase as the pupil expands.
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Line breaks: chro|mat¦ic ab|er¦ra¦tion
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