Optical and Chromatic Spatial Distribution Analyses of Remote-phosphor LEDs

白光LED自从问世以来，发展十分迅速，进入照明领域后很快便成为继气体放电灯光源之后的第三代新型光源。目前制作白光LED主要是通过蓝光GaN-LED芯片激发荧光粉的方式。研究表明，对于荧光粉激发型白光LED而言，相比于传统的荧光粉直接涂覆在芯片上的封装方式，荧光粉层远离芯片的远程封装方式更能够提高LED的出光量并改善LED的光色空间分布均匀性。将白光LED向室内照明推广的过程中，光色空间分布均匀性是其中一个需要解决的核心问题。而影响LED空间分布最重要的因素就是荧光粉的涂覆工艺。所以本文针对远程荧光粉白光LED中，荧光粉层的厚度、浓度、形状等参数对白光LED光色空间分布的影响进行了研究，具体内容...Since the advent of the WLED (white-light LED), it developed very rapidly, soon after becoming a significant part of the electric lighting industry. The current most popular method of achieving WLEDs is the phosphor-converted mode. At present, along with people’s psychological and physiological demands in the WLED’s illumination, the distribution uniformity has become the focus of people, which ha...学位：工学硕士院系专业：物理科学与技术学院_工程硕士(电子与通信工程)学号：3312013115283