可见光通信技术 是利用荧光灯或发光二极管等发出的 肉眼看不到的高速明暗闪烁信号来传输信息的,
将高速因特网的电线装置连接在照明装置上,插入电源插头即可使用。
利用这种技术做成的系统能够覆盖室内灯光达到的范围,
电脑不需要电线连接,因而具有广泛的开发前景。
百度百科 baike.baidu.com/view/10

Visible light communication (VLC)
is a data communications medium
using visible light between 400 THz (780 nm) and 800 THz (375 nm).
Visible light is not injurious to vision.
The technology uses fluorescent lamps
(ordinary lamps, not special communications devices)
to transmit signals at 10 kbit/s,
or LEDs for up to 500 Mbit/s.
Wiki en.wikipedia.org/wiki/V

Forget WiFi, Connect to the Internet Through Lightbulbs
good.is/post/forget-wif
Harald Haas: Wireless data from every light bulb
ted.com/talks/lang/eng/
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