image: Example of a 3-D printed lens. This material relates to a paper that appeared in the Feb. 15 2017, issue of Science Advances, published by AAAS. The paper, by S. Thiele at University of Stuttgart in Stuttgart, Germany, and colleagues was titled, "3D-printed eagle eye: Compound microlens system for foveated imaging." view more
Credit: [Credit: Thiele <i>et al. </i>Sci. Adv. 2017;3:e1602655]