標題: Improvement of illumination uniformity for LED flat panel light by using micro-secondary lens array
作者: Lee, Hsiao-Wen
Lin, Bor-Shyh
光電系統研究所
影像與生醫光電研究所
生醫電子轉譯研究中心
Institute of Photonic System
Institute of Imaging and Biomedical Photonics
Biomedical Electronics Translational Research Center
公開日期: 5-十一月-2012
摘要: LED flat panel light is an innovative lighting product in recent years. However, current flat panel light products still contain some drawbacks, such as narrow lighting areas and hot spots. In this study, a micro-secondary lens array technique was proposed and applied for the design of the light guide surface to improve the illumination uniformity. By using the micro-secondary lens array, the candela distribution of the LED flat panel light can be adjusted to similar to batwing distribution to improve the illumination uniformity. The experimental results show that the enhancement of the floor illumination uniformity is about 61%, and that of the wall illumination uniformity is about 20.5%. (C) 2012 Optical Society of America
URI: http://hdl.handle.net/11536/20628
ISSN: 1094-4087
期刊: OPTICS EXPRESS
Volume: 20
Issue: 23
起始頁: A788
結束頁: A798
顯示於類別:期刊論文