Smartphone-based microscope (IMAGE) Optica Caption The new inexpensive smartphone-based digital holographic microscope provides a portable way to perform 3D measurements. Credit Yuki Nagahama, Tokyo University of Agriculture 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.