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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Airy disk

References in periodicals archive ?

However, one should note that, in the single pinhole experiments, at the image plane of the lens the zero light intensity outside the central Airy disc of the pinhole image is a result of destructive quantum interference.

Single photon experiments and quantum complementarity

PSFs of diffraction limited systems are rotation symmetric and about 84% of the energy is concentrated in the Airy disc. System aberrations change this symmetry and/or this energy distribution.

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.