Developers at Fraunhofer IPMS use visible or infrared light to send and receive data. Transmission takes place without contact, in real time, at very high data rates. Optical communication, Li-Fi (light fidelity) is particularly advantageous in applications in which cables and connectors can interfere, or wireless radio networks such as WLAN or Bluetooth reach performance limits in terms of bandwidth or real-time capability. Data glasses or “augmented reality glasses” fall into this category. Visitors to the 2019 embedded world Exhibition & Conference, being held from 26-28 February in Nuremberg, can experience the possibilities of optical wireless data transmission in an augmented reality scenario at the Fraunhofer IPMS Booth 123 in Hall 3.