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双自由曲面LED均匀照明准直透镜设计 被引量:17

Design of LED Collimator for Uniform Illumination with Double Freeform Surfaces
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摘要 为了克服传统LED准直器在近场难以实现均匀照明的缺陷,设计了一种双自由曲面均匀照明准直透镜.透镜分为折反两部分,每部分都利用双自由曲面进行匀光和准直.根据马吕斯定律,推导了实现光束准直出射的等光程方程,并将切面迭代法加入等光程条件,同步计算准直透镜上下自由曲面的面形数据.仿真分析表明:对1mm×1mm的白光LED芯片,84.55%的能量集中在±2°内,近场照度均匀性达到94.59%,远场照度均匀性为89.01%;当LED芯片尺寸不超过2.0mm×2.0mm时,±4°内的能量利用率大于83.5%,近场照度均匀性在90%以上.该准直透镜能同时实现近场和远场的均匀照明,公差符合装配要求,光能利用率高. A LED collimator with double ffeeform surfaces was designed for uniform illumination in both near field and far field. The collimator includes refractive part and reflective part, and each part has double freeform surfaces. Based on Malus Law, the constant optical path length equations that realize the rays collimating were derived. Then associating with tangent-plane iterative method, the date both up freeform surface and down freeform surface simultaneously could be calculated. The simulations show that, 84. 55o//00 of the energy is collected in +2~ for 1 minx 1 mm size white LED after considering the Fresnel loss, reflective surfaces loss and material absorbing. The uniformity in near field is 94.59 %, and the uniformity in far field is 89.01%. The uniformity in near field and the optical efficiency in±4° are above 90% and 83.5% respectively, while the LED chip sizes are under 2 mm × 2 mm. It is illustrated that the LED collimator can realize uniform illumination in both near field and far field with high light efficiency and the tolerance meet the requirements of alignment.
出处 《光子学报》 EI CAS CSCD 北大核心 2014年第8期10-15,共6页 Acta Photonica Sinica
基金 国家863高技术研究发展计划(No.2009AA032701)资助
关键词 非成像光学 发光二极管 照明设计 自由曲面 几何光学 Geometric optics Nonimaging optics Light-emitting diodes Illumination design~ Freeformsurface
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参考文献13

  • 1JOO J Y, WAN H K, PARK S S, et al. Design and manufacturing of LED primary optics for road lighting engine [C]. SPIE,2012,8550855020.
  • 2SHUANG 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罗晓霞,刘华,卢振武,荆雷,姜洋,辛迪.实现LED准直照明的优化设计[J].光子学报,2011,40(9):1351-1355. 被引量:52
  • 4张航,贺叶美,李栋,梁雪,严金华.基于均分配焦椭流线法的LED匀光管菲涅尔反射器设计[J].光子学报,2012,41(4):421-424. 被引量:5
  • 5陈瑞,岑松原,金尚忠.基于同步多曲面法的发光二极管机器视觉照明设计[J].光子学报,2013,42(8):956-961. 被引量:9
  • 6CHEN 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.
  • 7CHEN J J, LIN C T. Freeform surface design for a light- emitting diode - based collimating lens [ J ]. Optical Engineering ,2010,49(9) :093001.
  • 8WANG 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.
  • 9D[JAN G,PABLO B,JUAN C. M,et al. TIR RXI collimator [J]. Optics Express ,2012,20(S1) :AS1-A61.
  • 10PABLO 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.

二级参考文献50

  • 1杨毅,钱可元,罗毅.一种新型的基于非成像光学的LED均匀照明系统[J].光学技术,2007,33(1):110-112. 被引量:45
  • 2徐欢,李湘宁,周果.基于Zemax软件的大齿距等厚菲涅尔透镜的设计[J].上海理工大学学报,2007,29(1):99-102. 被引量:9
  • 3KUDAEV S,SCHREIBER P.Automated optimization of non-imaging optics for luminaires[C].SPIE,2005,5962:1-9.
  • 4YI D,XU L,ZHEN RONG Z,PEI FU G.Freeform LED lens for uniform illumination[J].Optics Express,2008,16(17):12958-12966.
  • 5ZHEN RONG Z,XIANG H,XU L.Freeform surface lens for LED uniform illumination[J].Applied Optics,2009,48(35):6627-6634.
  • 6CHEN J J,LIN C T.Freeform surface design for a light-emitting diode–based collimating lens[J].Optical Engineering,2010,49(9):3001-3008.
  • 7DANIEL V M,MARIO G M,ANTONIO A,EUSEBIO B.High-efficiency light-emitting diode collimator[J].Optical Engineering,2010,49(12):3001-3008.
  • 8HSIEH W C,CHEN Y Y,LEE Y C,et al.Design and measurement of TIR Lens of MR16-Compatible LED lamp without aspherical surface for high directivity[C].SPIE ,2010,7717:1-8.
  • 9赵华龙,梁志毅,石兴春,杨小君.利用LED的投影系统光源设计[J].光子学报,2007,36(2):244-246. 被引量:20
  • 10HUANG X, JIANG Z, LU L, et al. The study o illumination compensation correction algorithm [ C ]. Electronics, Communications and Control (ICECC), 2011 2967-2970.

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