An object illuminated by light reflects rays in many directions (gray arrows). LEFT: With a normal lens, some rays are captured by a camera while other rays are missed, resulting in a blurry image with a limited field of view. RIGHT: The new method uses a nonlinear material to let the
rays "talk" with each other. The original rays are altered and new rays (shown in red) are generated. The resulting picture in the camera is scrambled, but a computer algorithm can undo the mixing and yield a crisp, wide-field image.