High throughput reflective light guide for planar illuminator

Chung Feng Chen, Hsiao Ting Wang, Cheng-Huan Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


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.

Original languageEnglish
Pages (from-to)784-791
Number of pages8
JournalApplied Optics
Issue number6
StatePublished - 20 Feb 2008

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