• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied optics >Collimating lens for light-emitting-diode light source based on non-imaging optics
【24h】

Collimating lens for light-emitting-diode light source based on non-imaging optics

机译：基于非成像光学元件的发光二极管光源的准直透镜

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A collimating lens for a light-emitting-diode (LED) light source is an essential device widely used in lighting engineering. Lens surfaces are calculated by geometrical optics and nonimaging optics. This design progress does not rely on any software optimization and any complex iterative process. This method can be used for any type of light source not only Lambertian. The theoretical model is based on point source. But the practical LED source has a certain size. So in the simulation, an LED chip whose size is 1 mm * 1 mm is used to verify the feasibility of the model. The mean results show that the lenses have a very compact structure and good collimating performance. Efficiency is defined as the ratio of the flux in the illuminated plane to the flux from LED source without considering the lens material transmission. Just investigating the loss in the designed lens surfaces, the two types of lenses have high efficiencies of more than 90percent and 99percent, respectively. Most lighting area (possessing 80percent flux) radii are no more than 5 m when the illuminated plane is 200 m away from the light source.
机译：发光二极管（LED）光源的准直透镜是在照明工程中广泛使用的必不可少的设备。镜片表面由几何光学和非成像光学计算得出。此设计进度不依赖于任何软件优化和任何复杂的迭代过程。该方法不仅可以用于朗伯型光源，还可以用于任何类型的光源。理论模型基于点源。但是实际的LED光源有一定的尺寸。因此，在仿真中，使用尺寸为1 mm * 1 mm的LED芯片来验证该模型的可行性。平均结果表明，该镜片具有非常紧凑的结构和良好的准直性能。效率定义为照明平面中的通量与来自LED光源的通量之比，而不考虑透镜材料的透射率。仅调查设计镜片表面的损耗，这两种镜片的效率分别超过90％和99％。当被照明平面距离光源200 m时，大多数照明区域（具有80％的通量）半径不超过5 m。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号