Prismatrons
Prismavision displays are often placed in the areas with heavy and dynamic traffic and near traffic lights. Such devices are mostly not placed on highways. Prismavision display is a device sized 2-3 x 5-8 m changing synchronously at certain time intervals and combining 3-side (triangular) prisms. Moving and dynamic nature of such type of devices attracts people and increases advertisement's effectiveness. Prismavision devices are typically illuminated, that unlike billboards, allows the distribution of advertising at night.