DISPOSITIVO LUMINOSO AD EFFETTI CROMATICI DINAMICI

A luminous system of chromatic dynamics is developed for producing iridescent ornamental effects and commercial effects such as for advertising billboards, providing same with iridescent effects of great impact through the application of light as the only source of colour. This system of chromatic dynamics is constituted by an optic or additive mixture of light passing through a series of optically active (birefringent) transparent media where colour results from the characteristics, thickness and molecular arrangement of the sheets used. The phase differences produced among the emergent waves depend on the difference of the indices, the thickness of the sheets and their optical properties in relation with the molecular structure in the transparent media, thereby obtaining images of brilliant colouring. The images produced on the luminous effect screen 14 may be derived from fluorescent tubes (10 or 11), overlapping diffusion discs (polariser) 9 (or 6) belt driven from one or more motors 1, a sheet 15 of clear methacrylate, a sheet 16 of frosted or flat acetate, one or more birefringent sheets 17, a scanning sheet 18 and a sheet 19 of frosted anti-reflective methacrylate.