Totally Asymmetric Design of LED Lens for Tunnel Light
Li Bolin
Guan Yefeng
Luo Wanxia
Abstract：A totally asymmetric design method for LED tunnel light lens is proposed , which is based on the mesh grids division of the LED light source with the theory of nonimaging optics .This method can not only have high energy utilization efficiency as the traditional lens , but also effectively reduce the glare effect for drivers while keeping in high uniformity of road surface luminance .A lighting simulation is made for the light distributions curve of the lens with DIALux , and it shows an excellent result with UE =0.88, UO =0.86, UI =0.91, TI=6.
Keywords：LEDroad lightinglight distribution designfreeform lensglare
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 89-92 )