Airy disc


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Airy disc

(ār'ē),
the image of a circular blur formed by a distant point source of light on the retina because of diffraction by the edge of the pupillary aperture where the diameter of the image decreases as the aperture increases.

Airy disc

(ār'ē disk)
The image of a circular blur formed by a distant point source of light on the retina because of diffraction by the edge of the pupillary aperture where the diameter of the image decreases as the aperture increases.
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References in periodicals archive ?
PSFs of diffraction limited systems are rotation symmetric and about 84% of the energy is concentrated in the Airy disc.
a zone that includes the center of mass of the PSF and its surroundings but does not coincide with the Airy disc of the PSF in general (Figs.