Glareless light-emitting diode lighting tube

Rong Seng Chang, Tung Yen Li, Ko Wen Jwo, Sha Wei Wang, Jang Zern Tsai

Research output: Contribution to journalArticlepeer-review


We develop a novel light bar waveguide design to produce a glareless light-emitting diode (LED) lighting tube. We design optimal parameters, such as the gap y between the tube and the reflective surface, the relative distance x between the lens and the LED, and so on. Using these parameters, we fabricate an illumination system consisting of LED light bulb installed at both ends of lighting tube. The lighting tube is shaped the same as a traditional fluorescent lighting tube in order to replace traditional lighting tubes without the modification of the lighting stand. The LED lighting tube is glareless to the observer from the side view.

Original languageEnglish
Pages (from-to)89-97
Number of pages9
JournalOptical Review
Issue number2
StatePublished - Mar 2012


  • glareless
  • LED
  • lighting tube
  • Taguchi method


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