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Introduction
The centerpiece of every camera is its imaging lens [1,2]. Usually made from glass or clear plastic, the lens receives light from a scene and focuses it to form an image. As seen in Figure 1a, Bigshot's imaging lens is actually a series of glass and plastic pieces that are encased in a metallic holder. The front side is shown in Figure 1b. Although virtually every modern camera uses a lens, it is still possible to capture an image without one. In fact, the very first type of camera, the pinhole camera, was invented well before the lens [3]! Still, modern cameras with lenses can capture much better images than pinhole cameras ever could. However, the idea of forming an image from captured light has always remained the same.
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