Figure 3

Experimental set-up.

(a) Our encoded imaging system consists of a encoded lens, mechanical mounts and a camera body. The encoded lens is mounted on a 3-degree-of-freedom adjustment cage system. A Canon EOS Rebel T5 camera body is connected to the mounting system by a lens tube to prevent stray light. (b) The central areas of the two component DOEs in the design with focal length range are observed on a microscope Nikon Eclipse L200N with a 5× objective. The scale bar is 500 μm. (c) Set-up of the static broadband imaging system. Without movement, our system is able to image the scene as a conventional lens. Our computational approach reconstructs high quality output images from the corrupted measurements. (d) Set-up of the rotational refocusing system. With only mutual rotation, our system is able to refocus on different objects within an extremely large depth of field. (e) Set-up of the rotation-only zooming system. Employing two encoded lenses, our system is able to zoom in or out with only rotation required to keep the objects sharp. The illustrations in this figure were generated using Sketchup²⁶.