LIGHT GUIDE EMPLOYING MULTILAYER OPTICAL FILM

摘要

PURPOSE: A light guide employing multing multilayer optical film is to attain effective spread light and equal light emitting. CONSTITUTION: A light guide(42) having a non light emitting portion(44) made of multiple layers of first and second substantially non absorptive longitudinally specula light reflector materials. The index of refraction of each layer differs from the indices of refraction of the immediately specula reflectivity. A substantially non absorptive light scattering to the light emitting portion(44) in opposition to the emitting(48)