prismatic glass

prismatic glass

1. Rolled glass that has parallel prisms on one face. These refract the transmitted light and thus change its direction. See also: glass2. Rolled glass that has parallel prisms on one face. These refract the transmitted light and thus change its direction.

prismatic glass

Rolled glass ? to ¼ in. (3.2 to 6.4 mm) thick, one face of which consists of parallel prisms that refract the transmitted light, thereby changing the direction of the light rays.