Optical Neural Network (IMAGE) UCLA Samueli School of Engineering Caption The system uses a series of 3D-printed wafers or layers with uneven surfaces that transmit or reflect incoming light. Credit UCLA Samueli School of Engineering Usage Restrictions None License Licensed 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.