COMPOSITE POLYMERIC OPTICAL FILMS WITH CO-CONTINUOUS PHASES.

摘要

An optical e-lement (100) is formed by co- extruding to have an arrangement of polymer scattering fibers (104) within a polymer, matrix (102) . The scattering fibers lie substantially parallel to a first axis. The scattering fibers are arranged at positions across the cross -section of the polymer matrix to scatter light transversely incident on the optical element in a direction substantially orthogonal to the first axis. The positions of the scattering fibers across the cross -section of the optical element may be selected so as to form a two-dimensional photonic crystal structure for light transversely incident on the optical element.