Composite glass structures (IMAGE) Optica Caption They also fabricated the EPFL logo to show how that the method can be used to make complex 3D shapes. The top image shows dark-field illumination, and the bottom shows bright-field illumination. Credit Yves Bellouard, Ecole Polytechnique Fédérale de Lausanne 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.