Flexible GRIN lens (IMAGE) Optica Caption Researchers have created a new long and flexible GRIN lens (pictured). They used it to create a bendable endoscopic imaging probe that can acquire 3D microscopic images. Credit Guigen Liu, Harvard Medical School and Brigham and Women’s Hospital 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.