Lumen degradation analysis of LED lamps based on the subsystem isolation method

Ke Hong-Liang; Hao Jian; Tu Jian-Hui; Miao Pei-Xian; Wang Chao-Quan; Cui Jing-Zhong; Sun Qiang; Sun Ren-Tao

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Lumen degradation analysis of LED lamps based on the subsystem isolation method

机译：基于子系统隔离法的LED灯腔降解分析

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The lumen degradation of LED lamps undergoing an accelerated aging test is investigated. The entire LED lamp is divided into three subsystems, namely, driver, lampshade, and LED light source. The parameters of output power [Watts (W)], transmittance (%), and lumen flux (lm) are adopted in the analysis of the degradation of the driver, lampshade, and LED light source, respectively. Two groups of LED lamps are aged under the ambient temperatures of 25 degrees C and 85 degrees C, respectively, with the aging time of 2000 h. The lumen degradation of the lamps is from 3.8% to 4.9% for the group under a temperature of 25 degrees C and from 10.6% to 12.7% for the group under a temperature of 85 degrees C. The LED light source is the most aggressive part of the three subsystems, which accounts for 70.5% of the lumen degradation of the LED lamp on average. The lampshade is the second degradation source, which causes 21.5% of the total amount on average. The driver is the third degradation source, which causes 6.5% under 25 degrees C and 2.8% under 85 degrees C of the total amount on average. (C) 2018 Optical Society of America

机译：研究了正在进行加速老化试验的LED灯的腔劣化。整个LED灯分为三个子系统，即驾驶员，灯罩和LED光源。在分析驱动器，灯罩和LED光源的分析中采用输出功率[瓦特（W）]，透射率（％）和腔通量（LM）。两组LED灯在25℃和85摄氏度的环境温度下老化，随着2000小时的老化时间。灯的腔劣化在25摄氏度的温度下为组的3.8％至4.9％，在85摄氏度的温度下为组的10.6％至12.7％。LED光源是最具侵略性的部分在三个子系统中，平均占LED灯的70.5％。灯罩是第二次退化源，平均导致总金额的21.5％。驾驶员是第三个退化源，其平均总量的25摄氏度下的6.5％和2.8％以下2.8％。（c）2018年光学学会

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《Applied optics》 |2018年第4期|共6页
作者
Ke Hong-Liang; Hao Jian; Tu Jian-Hui; Miao Pei-Xian; Wang Chao-Quan; Cui Jing-Zhong; Sun Qiang; Sun Ren-Tao;
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作者单位

Lanzhou Space Technol Inst Phys Sci &

Technol Vacuum Technol &

Phys Lab 100 Feiyan Roud Lanzhou 730000 Gansu Peoples R China;

Lanzhou Space Technol Inst Phys Sci &

Technol Vacuum Technol &

Phys Lab 100 Feiyan Roud Lanzhou 730000 Gansu Peoples R China;

Lanzhou Space Technol Inst Phys Sci &

Technol Vacuum Technol &

Phys Lab 100 Feiyan Roud Lanzhou 730000 Gansu Peoples R China;

Lanzhou Space Technol Inst Phys Sci &

Technol Vacuum Technol &

Phys Lab 100 Feiyan Roud Lanzhou 730000 Gansu Peoples R China;

Lanzhou Space Technol Inst Phys Sci &

Technol Vacuum Technol &

Phys Lab 100 Feiyan Roud Lanzhou 730000 Gansu Peoples R China;

Lanzhou Space Technol Inst Phys Sci &

Technol Vacuum Technol &

Phys Lab 100 Feiyan Roud Lanzhou 730000 Gansu Peoples R China;

CIOMP Chinese Acad Sci Dept Optoelect Res &

Dev Ctr 3888 East South Lake Rd Changchun 130033 Jilin Peoples R China;

Jilin Univ Coll Commun Engn 5988 Renmin St Changchun 130022 Jilin Peoples R China;

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Lumen degradation analysis of LED lamps based on the subsystem isolation method

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