Effect of the surface curvature of the phosphor layer on the optical performance of a WLED

Jiaqi Wang, S. Lee, Huayong Zou
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Abstract

In this study, the influence of the surface curvature of the phosphor layer on the optical performance of white light-emitting diodes (WLEDs) was investigated. Based on the lead frame of a standard 3528 component, WLEDs with various phosphor layer structures were fabricated for investigation. The curvature of the phosphor layer was adjusted by the volume of phosphor slurry. The consumption of phosphor materials was chosen as a control parameter for different structures in the present study. Both ray-tracing simulation and experimental investigations were performed to characterize the optical performance of the WLEDs. The relationship between the central height of the phosphor layer and the optical performance of WLEDs was analyzed in order to find the optimized structure.
荧光粉层表面曲率对WLED光学性能的影响
本文研究了荧光粉层表面曲率对白光发光二极管(wled)光学性能的影响。在标准3528元件引线框架的基础上,制备了不同荧光粉层结构的wled进行研究。荧光粉浆的体积可以调节荧光粉层的曲率。在本研究中,选取了不同结构的荧光粉材料消耗量作为控制参数。通过光线追踪模拟和实验研究来表征wled的光学性能。分析了荧光粉层中心高度与发光二极管光学性能的关系,找到了最优结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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