基于荧光膜的大功率白光LED的发光性能*

陈锋, 张梅, 何鑫, 罗坚义, 曾庆光, 卿宁

Optical Properties of High-power White LED Based on Fluorescent Films

CHEN Feng, ZHANG Mei, HE Xin, LUO Jianyi, ZENG Qingguang, QING Ning

表1 基于蓝光LED模组和不同厚度荧光膜封装的LED器件的光色参数(IF = 300 mA)

Table 1 Parameters of the fabricated LEDs based on blue LED modules and fluorescent films (IF = 300 mA)

Thickness(mm) Luminous efficiency (lm/W) x y Tc(K) Ra 0.88 69.89 0.3034 0.359 6737 72.4 1.00 76.35 0.3277 0.4066 5660 67.7 1.14 76.96 0.3457 0.4416 5184 64.9 1.36 76.28 0.3602 0.4691 4902 62.7 1.52 77.79 0.3695 0.4864 4752 61.2