LED lamps lighting merchandise may soon shine invisible data that your smartphone can pick up.

Fujitsu Laboratories has developed a method to include ID data in LED light so that pointing a smartphone camera at an object it illuminates calls up linked information stored on a cloud server.

The technology could be used to retrieve information about products on display and even trigger a mobile payments system for purchasing them, according to Fujitsu. The technology could be used by retailers as well as in museums and art galleries or trade shows.

Fujitsu used color modulation to change the red, green and blue (RGB) mix in LED lights. By modifying the intensity of each color channel over time, the light can encode ID data without changing the visual characteristics of the light itself.

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