The branch of optics that describes light propagation in terms of rays. Note 1: Rays are bent at the interface between two dissimilar media, and may be curved in a medium in which the refractive index is a function of position. Note 2: The ray in geometric optics is perpendicular to the wavefront in physical optics . Synonym ray optics.
GEOMETRIC OPTICS
Meaning of GEOMETRIC OPTICS in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012