A microchipped bulb can produce data speeds of up to 150 megabits per second (Mbps)， Chi Nan, IT professor at Shanghai's Fudan University told Xinhua News。

上海復(fù)旦大學(xué)[微博]信息技術(shù)學(xué)院遲楠教授對(duì)新華網(wǎng)記者表示，一個(gè)微芯片燈泡可以產(chǎn)生高達(dá)150M每秒的網(wǎng)速。

A one-watt LED light bulb would be enough to provide net connectivity to four computers, researchers say。

研究者還表示，一個(gè)1瓦的LED燈泡已經(jīng)足以為四臺(tái)電腦提供網(wǎng)絡(luò)連接。

But experts told the BBC more evidence was needed to back up the claims. There are no supporting video or photos showing the technology in action。

不過(guò)專家也告訴BBC記者，佐證上述說(shuō)法需要更多的信息。目前還沒(méi)有證實(shí)該技術(shù)成功運(yùn)用的視頻或照片。

Li-fi, also known as visible light communications (VLC)， at these speeds would be faster - and cheaper - than the average Chinese broadband connection。

Li-fi光保真，又稱為可見(jiàn)光通信(VLC) 將會(huì)比中國(guó)一般的寬帶網(wǎng)絡(luò)連接速度更快，且價(jià)格更便宜。

In 2011, Prof Harald Haas, an expert in optical wireless communications at the University of Edinburgh, demonstrated how an LED bulb equipped with signal processing technology could stream a high-definition video to a computer。

在2011年，來(lái)自英國(guó)愛(ài)丁堡大學(xué)的光無(wú)線通信專家、哈拉爾德·哈斯教授，演示了一只配備有信息處理裝置的LED燈泡是如何將高保真視頻傳輸?shù)诫娔X上的。

He coined the term "light fidelity" or li-fi and set up a private company, PureVLC, to exploit the technology。

他創(chuàng)造了“光保真”這一術(shù)語(yǔ)，并且成立了一家私營(yíng)公司，PureVLC來(lái)進(jìn)一步開(kāi)發(fā)這種技術(shù)。

This year, the Fraunhofer Heinrich Hertz Institute claimed that data rates of up to 1Gbit/s per LED light frequency were possible in laboratory conditions, making one bulb with three colours potentially capable of transmitting data at up to 3Gbit/s。

今年，德國(guó)弗朗霍夫海因里希赫茲研究所科學(xué)家稱，在實(shí)驗(yàn)室的數(shù)據(jù)連接中，一個(gè)LED燈泡已經(jīng)可以實(shí)現(xiàn)1兆比特每秒的速度，這樣一個(gè)三色的燈泡傳達(dá)數(shù)據(jù)的速度將可以達(dá)到3兆比特每秒。

Li-fi promises to be cheaper and more energy-efficient than existing wireless radio systems given the ubiquity of LED bulbs and the fact that lighting infrastructure is already in place。

考慮到LED燈泡的普遍性，而且照明基礎(chǔ)設(shè)施是既有的，光保真將比現(xiàn)有的無(wú)線廣播系統(tǒng)更加節(jié)能，更加環(huán)保。

Visible light is part of the electromagnetic spectrum and 10,000 times bigger than the radio spectrum, affording potentially unlimited capacity。

可見(jiàn)光是電磁光譜的一部分，比無(wú)線電頻譜要大1萬(wàn)倍，因而可說(shuō)具有無(wú)限的開(kāi)發(fā)潛力。

But there are drawbacks: block the light and you block the signal。

但是它也有弊端：遮住光源，就遮住了信號(hào)。

Prof Chi's research team includes scientists from the Shanghai Institute of Technical Physics at the Chinese Academy of Sciences, Her team is hoping to show off sample li-fi kits at the China International Industry Fair in Shanghai on 5 November,the report says。

據(jù)報(bào)道稱，遲教授的研究團(tuán)隊(duì)包括中國(guó)科學(xué)院上海技術(shù)物理研究所的眾多專家。她的團(tuán)隊(duì)希望能夠在11月5號(hào)上海舉辦的中國(guó)國(guó)際工業(yè)博覽會(huì)上展出光保真樣品。