Freeform lens design for light-emitting diode uniform illumination by using a method of source-target luminous intensity mapping

Jin Jia Chen, Ze Yu Huang, Te Shu Liu, Ming Da Tsai, Kuang Lung Huang

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

We present a freeform lens for application to LED uniform illumination. This lens, which is designed with a method of simple source-target luminous intensity mapping, can produce irradiance uniformity of greater than 0.8 and optical efficiency above 90% with an arbitrary half-beam angle greater than 45 deg. Typically, as compared with a conventional source-target energy mapping method, this design method can achieve better optical performance of lenses for general LED lighting. When a non-Lambertian-type light source is employed, for example, the chip on board LED, the use of the method can result in a compact LED lens without losing the optical performances of high irradiance uniformity and high optical efficiency as yielded by lenses for Lambertian-type LED light sources.

原文English
頁(從 - 到)E146-E152
期刊Applied Optics
54
發行號28
DOIs
出版狀態Published - 2015 十月

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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