LED mobile phone can be played on the Chinese Academy of sciences information network successfully developed

The airplane can not call the Internet, it is evident to anyone of common sense, but one day, just above the seats of a light LED lamp, use notebook computer to browse the web, download video, and the safety of the aircraft will not be affected, China Academy of Sciences Institute of semiconductor optical wireless communication principle based on led "semiconductor lighting information network" has been a major breakthrough.

In the Institute of semiconductors and semiconductor lighting information demonstration hall, a laptop computer has no cable connection, no wireless card, but the computer screen is in smooth playback of network video; some appliances such as televisions, home theater, microwave oven, spherical camera, electric curtains, far away from the people, only operation of the hands of the mobile phone, TV began to broadcast programs, microwave oven lights, even the camera focus, the lens zoom is closer to "small" action can be realized. Chen Xiongbin, deputy director of the Institute of Chinese Academy of Sciences introduced to achieve this miracle lies in the mosaic on the ceiling of the LED lighting.

The original LED lamp lights in addition to lighting, can also be used for communication and control, its principle is through the pulse signal to control the LED lights, LED light in fast frequency does not stop light flashing, signal transmission, the high frequency flicker is the human eye can see, so LED can send a signal lamp lighting, two.

"The future in plane free access to the Internet is not a dream", Chen Xiongbin said, only need to install a central controller on the plane, the received satellite signal is transmitted to LED reading lamp on the passenger seat, so an ordinary lamp has become a network access point, placed on the side of the notebook computer can access to the Internet, passengers can surf the Internet to pass the journey lonely. The aircraft can not call the Internet, because of concerns about the effects of electromagnetic radiation safety of aircraft, and the LED lamp wireless communication technology can completely eliminate this concern, because it does not emit electromagnetic wave is a kind of wireless communication system is very safe.