Japan can insert information into the light to read the content of the mobile phone

The Fujitsu Research Institute of Japan has successfully developed a technology for embedding information into an LED light source. This LED light will project ID information into an object, and people can use a mobile phone or the like to read the information in the object. The institute said that the technology will be officially put into practical use in 2015.

In addition, the object can be carried by GPS or Bluetooth without affecting the appearance, but the range of information that can be read and the type of mobile phone that can use the function are greatly limited.

Embed information that is invisible to the naked eye into the light, and then use a camera mounted on a device such as a mobile phone to capture the information. If the technology is successfully put into practical use, people will not only be able to easily publish large amounts of information, but also use their own mobile phone camera to read a wide variety of information.

The newly developed lighting technology performs temporal strength control on the light emitted from the RGB color components of the color LED, and expresses the ID information by subtle changes thereof, and gives one LED corresponding information to one LED.

In addition, the information embedded in each wavelength of RGB is absorbed by a part of the reflection, which makes it weaker. Therefore, researchers are also developing automatic repair function of the camera when capturing information, and improving the accuracy of information. It also expresses the ID information by controlling the intensity of each color component of the light in the time direction. As long as the smart phone is used to capture the item embedded with the information, the light change wave can be detected, and the ID information can be read, which is beyond imagination. Convenience.

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