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MAGIC WINDOW COM WINDOWS
Magic windows are transparent refractive components whose surface reliefs are designed by the inverse Laplacian of a target light pattern and are capable to reshape an incoming light beam into the target image. Refractive freeform components are becoming increasingly relevant for generating controlled patterns of light, because of their capability to spatially modulate optical signals with high efficiency and low background.
In an article just published on Advanced Material Technologies a research team, coordinated by Francesco Pisani from Pisa University and Andrea Camposeo from Cnr Nano, developed stretchable and 3D printed cryptographic magic windows capable of generating light patterns by refraction.
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