Optics.
a plane determined by a given ray, incident on a surface, and the normal at the point where the incident ray strikes the surface.
[ 1825-35 ]
Optics.
a plane determined by a given ray, incident on a surface, and the normal at the point where the incident ray strikes the surface.
[ 1825-35 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012