FABRICATION OF POLYCHROMATIC LAMINAR POLYMER MATERIAL WITH OPTICAL EFFECTS Russian patent published in 2015 - IPC G02F1/23 G02F1/1335 B44F1/06 B44F1/08 

FIELD: process engineering.

SUBSTANCE: invention relates to optics and lighting engineering exploiting laminar and polarizing polymer-based materials to get bright visual effects without use of dyes and monochromatic light emitters. Invention describes the production of light panel of laminar pack of polymer films for colour control in transmitted light flux. This process arrangement of two anisotropic translucent and colourless films of hard elastic polypropylene at right angle between two sheets of light polarizing film material. One of said films is intermittently stretched by 25-35% and, then, returned to its initial size. Said film is displaces relative to the panel other plies at mechanical effects applied thereto.

EFFECT: simplified process, enhanced performances, rule out application of electric power for colour variation.

3 cl, 5 dwg, 1 tbl, 12 ex