Holographic photopolymers were developed, as the name implies, for holography. 聽However, they can be programmed with a variety of gradient index (GRIN) structures including diffractive and refractive lenses. 聽The polymers self develop in respnse to light, enabling complex 3D GRIN structure not possible with traditional processes that rely on diffusion. 聽We have created a number of specialized exposure systems operating from the micron to the 10 mm scale to implenent unusual optical functions, correct for ab...