Communications and Sensing of Illumination Contributions in a Power LED Lighting System

In recent years, LED technology emerged as a prime candidate for the future illumination light source, due to high energy efficiency and long life time. In addition, LEDs offer a superior flexibility in terms of colors and shapes, which leads to a potentially infinite variety of available light patterns. In order to create these patterns via easy user interaction, the authors need to sense the local light contribution of each LED. This measurement could be enabled through tagging of the light of each LED with unique embedded IDs.