High throughput reflective light guide for planar illuminator.
A light guide fully composed of reflective plate has been proposed for a planar illuminator with the light source located at the side edge. Using mirror reflection as the light guiding mechanism increases the light acceptance angle of the light guide, and the hollow structure allows increasing the source coupling area without inducing further weight. Accompanying with the optical films, for example, a diffuser, a prismatic film, and a reflective polarizer to spread light distribution, the uniformity of the prototype has shown the feasibility for a planar illuminator.
Chen
Chung-Feng
CF
Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan.
Wang
Hsiao-Ting
HT
Chen
Cheng-Huan
CH