| 基于TIR结构LED准直透镜的设计与实现 |
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| 引用本文： | 王未未.基于TIR结构LED准直透镜的设计与实现[J].电子科技,2016,29(1):5. |
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| 作者姓名： | 王未未 |
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| 作者单位： | (江苏大学 机械工程学院,江苏 镇江 212013) |
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| 基金项目： | 国家自然科学基金资助项目(11204107) |
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| 摘 要： | 介绍了一种LED自由曲面准直透镜的设计方法,并运用该方法设计了一款基于全内反射,结构的准直透镜。对初始结构不断进行逼近,最终得到准直透镜的模型。透镜外径为35 mm,总高为21.5 mm。透镜匹配Cree公司XPE光源进行计算机模拟,效率高达84.8%,K值高达125.8 cd/lm。模拟应用于35 W的探照灯时,在100 m远处形成一个直径为8 m的圆形光斑,光斑中心照度高达60 lux。透镜实际样品被制作出后,经过测试,实际透镜的光束角为3.2°。此款透镜被用于实际探照灯灯具中。
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| 关 键 词： | TIR准直透镜 光学设计 自由曲面 TracePro |
Design and Application of LED Collimating Lens Based on TIR |
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| WANG Weiwei.Design and Application of LED Collimating Lens Based on TIR[J].Electronic Science and Technology,2016,29(1):5. |
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| Authors: | WANG Weiwei |
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| Affiliation: | (School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | A design method for collimating LED lens with free surface is introduced and a practical collimating lens with the method based on TIR (Total Internal Reflection) is designed by approximating for the final 3D model successfully.The maximum diameter of the lens is 1 mm with a height of 2 mm.Computer simulation with the lens matched with CREE -XPE shows an efficiency of 84.8% and a K value of 125.8 cd/lm.With the lens applied to 35 W searchlight,a spot of a diameter of 8 m results with the spot center illumination up to 60 lux 100 m away 3.2°.Tests on the fabricated collimation lens show a beam angle of.The lens is used in the actual searchlights. |
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| Keywords: | TIR collimating lens optical design freeform surface TracePro |
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