Design of LED Plane Lens
CHENG Zhiming
HONG Yunyun
HU Jun
ZENG ping
ZHANG Zhihai
HU Yan
Abstract：The concept of non-rotationally symmetric plane lens is first proposed,and the corresponding lens is designed.Such lenses can be used for tunnels,roads and other outdoor lighting areas.Since the out-light surface of the lens is flat,it brings great convenience for the later maintenance and scrubbing of the outdoor lighting.Furthermore,it significantly reduces maintenance costs.The lens is mainly composed of inner free-form surface,reflective cup surface and outgoing light plane.From the perspective of geometrical optics,the two refraction paths of the light passing through the inner free-form surface and the plane are analyzed,and the inner refraction free-form surface is exactly calculated according to the energy distribution requirement of the target illumination surface.This new lens has an extremely broad application prospects in the harsh outdoor environment.
Keywords：LEDlensflat out lightgeometrical opticsrefractionlightingoptical design
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 91-96,110 )