摘要
本实验从视觉功效入手,选取两组相同的LED模组,分别使用PWM信号与恒流信号驱动,在特定环境下,由观测者观察比较二者亮度,得到数据。在人眼的亮度感知方面,由于Broca-Sulzer效应等原因,PWM脉冲驱动下的LED的较恒流驱动下的LED有着较为显著的提升。
This experiment is focused on human eye perception. Authors choose two groups of the same LED modules, driven by PWM pulse signal and DC signal separately, and ask each observer to tell the difference about the LEDs＇ luminance. It is shown the pulse operated LED has effective eyes perception enhancement compared with DC operated LED because of the Broca-Sulzer effect and some other factors.
出处
《照明工程学报》
2013年第3期73-76,共4页
China Illuminating Engineering Journal
关键词
LED
PWM脉冲驱动
光效
视觉效应
LED
PWM pulse operation
luminous efficacy
human eye perception
