Design of an efficient projector for LED flat lamp without light guide plate

详细信息    查看全文

• 作者：Li-ping Lai 56 (1)
  Qi-ren Zhuang (1)
  De-juan Liang za> (1)
  
• 刊名：Optoelectronics Letters
• 出版年：2013
• 出版时间：November 2013
• 年：2013
• 卷：9
• 期：6
• 页码：441-445
• 全文大小：
• 作者单位：Li-ping Lai 56 (1)
  Qi-ren Zhuang (1)
  De-juan Liang za> (1)
  
  1. College of Information Science and Engineering, Huaqiao University, Xiamen, 361021, China
  
• ISSN：1993-5013

文摘

An efficient LED projector is designed for the LED flat lamp without light guide plate (LGP), in order to get high-efficiency lighting capablility and low cost of LED flat lamp. By employing refraction and total reflection, uniform intensity distribution of the emergent light and high-efficiency lighting capablility are achieved. The simulation results show that the output efficiency and intensity distribution on LED flat lamp panel depend on the distance between projector and output panel, the rotation angle of the projector and the gap between projector and LED. It performs well in both lighting efficiency and uniformity, while a distance of 5 mm, a rotation angle of 2and a gap of 1.2 mm are used with the panel size of 240 mm60 mm in the LED flat lamp without LGP. And 96.6% of optical uniformity is achieved.