摘要
从LED发光原理出发，结合实验将红蓝椭圆灯分别在室温和85℃的恒温箱9820mAR流点亮168h后测试其法向光强及正向电压，然后分析YPN结温度和环境温度对LED性能的影响。
Combining the LED lighting principle with experiment, lighting the red and blue oval LEDS with 20mA current at room temperature and constant temperature box setting 85 centigrade respectively, and measuring the vertical Luminous intensity and forward voltage. The influence of PN Junction temperature and ambient temperature on the function of LED is analyzed.
出处
《物联网技术》
2012年第3期37-38,41,共3页
Internet of things technologies
关键词
LED
椭圆灯
法向光强
正向电压
PN结
LED
oval LED
vertical luminous intensity
forward voltage
PN Junction
