Lightguide Design & Simulation: Continental’s Guiding Light | Ansys

... total internal reflection (TIR), the surfaces of the lightguide must be polished to optical-level ... surfaces polished to optical quality. Next, they specified the number of light rays, the location of an ... surfaces of the lightguide must be polished to optical-level smoothness. Roughening the surface can change ... Speos. In this case they chose polycarbonate as the material, with surfaces polished to optical quality ...