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diffraction-limited




Said of an optical system that meets the Rayleigh criterion, or, put another way, that can bring light to a focus at the theoretical minimum of the Airy disk. To be diffraction-limited there must be no more than wavelength of light between wavefronts at the focal point. Modern optical systems can exceed this theoretical design limit, but it remains a standard.


Related category

   • OPTICS AND OPTICAL PHENOMENA