System with backpack (IMAGE) Optica Caption The system consists of a watch with an imaging interface, a handheld computer and a backpack housing the laser and power supply. It is designed to allow imaging while the wearer moves around freely. Credit Lei Xi, Southern University of Science and Technology Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.