高光效LED灯丝球泡灯的光学性能研究  

Study on Optical Performance of High Luminous LED Filament Bulbs

作　　者：龚三三[1] 秦会斌[1] 刘丹[1] 

机构地区：[1]杭州电子科技大学新型电子器件与应用研究所,杭州310018

出　　处：《半导体技术》2015年第2期112-116,共5页Semiconductor Technology

摘　　要：基于板上芯片(COB)封装技术,提出了一种360°出光的新型发光二极管(LED)灯丝球泡灯,其封装基板采用透明基板。研究了不同封装材料及芯片对其LED光通量、光效和色温的影响。首先介绍了LED灯丝球泡灯的结构、优点,然后分析了影响LED光学性能的因素,最后进行相关性能测试。测得采用玻璃/蓝宝石基板封装的LED灯丝的光通量分别为467.29和471.69 lm;光效分别为110.06和111.79 lm/W;显色指数分别为84.1和81.9。测试结果表明,采用透明基板封装的LED灯丝球泡灯不仅能有效调节色温,而且能显著提高LED的光通量、光效和显色指数。Based on the chip on board（ COB） packaging technology,a novel 360° LED filament bulb was present and the transparent substrate is used for the LED filament package. The effect of different packaging materials on flux, luminous efficiency and color temperature were investigated in detail. First the structure and advantages of the LED filament bulb were introduced,then the factors which effect the optical performance were analyzed, finally the relevant experiments were conducted.The results of the filament bulb（ packaging on glass / sapphire） show that the flux of the LEDs are467. 29 lm and 471. 69 lm,and the luminous efficiency are 110. 06 lm / W and 111. 79 lm / W. The color rendering index are 84. 1 and 81. 9,respectively. The experiment results show that the LED filament bulb package based on transparent substrate technique can not only adjust the color temperature,but also increase the luminous flux,luminous efficacy and color rendering index.

关 键 词：透明基板 LED灯丝球泡灯 光通量 光效 封装 

分 类 号：TN305.94[电子电信—物理电子学] TN312.8