高均匀度超薄直下式LED平板灯混光元件的设计与研究

发布时间：2018-04-06 06:34

本文选题：混光元件　切入点：平板灯　出处：《光子学报》2017年05期

【摘要】：为了设计更好的LED平板灯光学结构,解决现存的直下式LED平板灯厚度大,光源密度大的缺点,提出了两种兼具反射、投射作用的混光元件结构:椎台结构和半球型结构,并将其应用于超薄直下式LED平板灯的设计,以增加光线的耦合距离来提高出光均匀度.借助Tracepro软件研究两种不同结构混光元件应用于LED平板灯时的出光均匀度和光效率,运用Taguchi方法设计实验进行研究.结果表明,带有棱锥型结构元件的灯具均匀度达到95.42%,光效率达到92.72%,而带半球型结构元件灯具均匀度达到97.67%,光效率达到92.65%,其均匀度高于棱锥结构的原因是棱锥形状混光元件反射面的定向反射导致光线方向过于集中.
[Abstract]:In order to design a better LED panel lamplight structure and solve the disadvantages of large thickness and high light source density of the existing straight down LED flat lamp, two kinds of hybrid light element structures with both reflective and projective functions are proposed: the vertebrae structure and the hemispherical structure.It is applied to the design of ultra-thin straight down LED flat lamp to increase the coupling distance of light to improve the uniformity of light output.By means of Tracepro software, the light uniformity and efficiency of two kinds of light mixing elements with different structures applied to LED flat lamp are studied. The experiment is carried out by using Taguchi method.The results show thatThe uniformity of lamps with pyramid structure is 95.42, the light efficiency is 92.72, the uniformity of lamps with hemispherical structure is 97.67 and the light efficiency is 92.65.The directional reflection of the projectile causes the direction of light to be too concentrated.
【作者单位】：华南理工大学材料科学与工程学院;华南理工大学发光材料与器件国家重点实验室;华南师范大学美术学院;
【基金】：教育部国家级大学生创新创业训练计划项目(No.201610561075) 广东省科技计划项目(Nos.2013B090600048,2015B010127004) 广东省应用型科技研发专项(No.2015B010134001) 广东省扬帆计划引进创新创业团队专项(No.2015YT02C093) 广州市科技计划项目(No.2013J4300021) 广州市产学研协同创新重大专项(No.201604010006)资助~~
【分类号】：TM923.34

【相似文献】