[1] [1] JOO J Y,WAN H K,PARK S S,et al.Design and manufacturing of LED primary optics for road lighting engine ［C］.SPIE,2012,855085502O.

[2] [2] SHUANG Z,KAI W,FEI C,et al.Lens design of LED searchlight of high brightness and distant spot［J］.Journal of the Optical Society of America A,2011,28(5):815-820.

[3] [3] LUO Xiao-xia,LIU Hua,Lu Zhen-wu,et al.Automated optimization of free-form surface lens for LED collimation［J］.Acta Photonica Sinica,2011,40(9):1 351-1355.

[4] [4] ZHANG Hang,HE Ye-mei,LI Dong,et al.Design for Fresnel reflector of uniformity light LED tubes based on ellipse flow-line methods with equipartition and foci map［J］.Acta Photonica Sinica,2012,41(4):421-424.

[5] [5] CHEN Rui,CEN Song-yuan,JIN Shang-zhong.A machine vision illumination system based on simultaneous multiple surfaces design ［J］.Acta Photonica Sinica,2013,42(8):956-961.

[6] [6] CHEN J J,WANG Y W,HUANG K L,et al.Freeform lens design for LED collimating illumination［J］.Optics Express,2012,20(10):10984-10995.

[7] [7] CHEN J J,LIN C T.Freeform surface design for a light-emitting diode–based collimating lens［J］.Optical Engineering,2010,49(9):093001.

[8] [8] WANG G Z,WANG L L,LI F L,et al.Collimating lens for light-emitting-diode light source based on non-imaging optics ［J］.Applied Optics,2012,51(11):1654-1659.

[9] [9] DEJAN G,PABLO B,JUAN C.M,et al.TIR RXI collimator［J］.Optics Express,2012,20(S1) :A51-A61.

[10] [10] PABLO B,JUAN C.M,JOSE B,et al.Simultaneous multiple surface optical design method in three dimensions ［J］.Optical Engineering,2004,43(7):1489-1502.

[11] [11] ZHENG Z R,HAO X,LIU X.Freeform surface lens for LED uniform illumination［J］.Applied Optics,2009,48(35):6627-6634.

[12] [12] WANG L,QIAN K Y,LUO Y.Discontinuous free-form lens design for prescribed irradiance ［J］.Applied Optics,2007,46(18):3716-3723.

[14] [14] MENG Xiang-xiang,LIU Wei-qi,Liu Hua,et al.A reflective optical system for converting elliptical Gaussian laser beam to flat-top beam［J］.Chinese Journal of Luminescence,2013,34(7):940-947.