White light emitting diode (led) lighting device

白光led照明装置

Abstract

一种交流白光LED照明装置及其制造方法,由蓝光、紫光或紫外LED芯片与蓝色余辉发光材料A和黄色发光材料B组成;其中,蓝色余辉发光材料A与黄色发光材料B的重量配比为10-70wt%:30-90wt%。由于采用具有余辉特性的发光材料,在激发光源消失时能维持发光,克服了由于交流电波动导致的LED芯片的发光波动对照明器件的影响;以及芯片发热带来的难题,同时,温度淬灭效应和交流电流方向改变给交流白光LED照明装置带来的影响被克服。
An alternating current (AC) white LED lighting device and the manufacture method thereof are provided. The AC white LED lighting device consists of blue, violet or ultraviolet LED chips, blue afterglow luminescence materials A and yellow luminescence materials B. Wherein the weight ratio of the blue afterglow luminescence materials A to the yellow luminescence materials B is 10-70wt%:30-90wt%. Because of using afterglow luminescence materials, the light will be sustained when excitation light disappears, which can eliminate the influence of LED chips light output variation due to alternating current fluctuation on the illumination device. And the problem of the heating of the chips also can be overcome. At the same time, the influence of temperature quenching effect and direction change of AC current on the AC white LED lighting device is eliminated.

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