Holographic photopolymers were developed, as the name implies, for holography. However, they can be programmed with a variety of gradient index (GRIN) structures including diffractive and refractive ...
What is a gradient index refracted lens? How are 3D GRIN lenses used? Gradient index (GRIN) lens antennas are utilized in wireless-communications applications such as satellite and radar systems. They ...
Producing the perfect color images we need and love often requires multiple, heavy lenses so that each color focuses in exactly the same plane. Now Penn State engineers have developed a new theory ...
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