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| 基于微透镜阵列生成特定矩形光斑的TIR组合透镜设计与仿真 |
| Design and simulation of TIR combination of lens for a specific rectangular spot based on micro-lens array |
| 投稿时间：2015-02-27 |
| DOI：10.3969/j.issn.1005-5630.2015.06.010 |
| 中文关键词: 照明工程 LED TIR透镜 微型透镜 |
| 英文关键词:illumination engineering LED TIR lens micro-lens |
| 基金项目:国家专项基金项目(61027014);深圳市科技计划项目(JCYJ20140418095735582) |
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| 中文摘要: |
| LED功率的不断增大使其逐渐替代传统光源,并广泛用于各种照明光源。在某些室内照明以及道路照明设计中,通常需要借助LED透镜产生矩形光斑从而充分利用光能避免浪费。利用Light Tools软件设计了一种全内反射(total internal reflection,TIR)透镜与特定微型透镜阵列的组合透镜,设置TIR准直透镜透射曲面和全反射曲面为二次曲面,并对其进行准直优化。然后建立单个微型透镜,设置单个矩形微透镜长宽比分别为1:1、3:2和4:3,并将其阵列化。通过改变微型透镜的尺寸以及球面曲率半径进行进一步优化,最后生成与微型透镜长宽比对应的均匀矩形光斑,从而满足不同矩形照明区域的照明需求。 |
| 英文摘要: |
| LED is widely used in different lighting environment instead of traditional lighting source as its power becoming higher and higher. LED lens are always needed to make rectangular spot to avoid waste of flux in some illumination design of indoor and road conditions. In this design, total internal reflection(TIR) lens and micro-lens array are integrated by Light Tools. The transmission and the total reflection surface of TIR lens are all set up to quadric for optimization. And the ratio of length and width of a single micro-lens is set to 1:1, 3:2 and 4:3. The size of the micro-lens and spherical curvature are also variable for further optimization. Finally, a uniform rectangular spot appears on the detector, and the ratio of the length and width is the same as the ratio of micro-lens which can meet illumination design of different condition. |
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