Optics.
a distortion produced by a lens in which the magnification decreases toward the edge of the field. Cf. pincushion distortion .
[ 1885-90 ]
Optics.
a distortion produced by a lens in which the magnification decreases toward the edge of the field. Cf. pincushion distortion .
[ 1885-90 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012