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Spiral-shaped lens provides clear vision at a range of distances and lighting conditions
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Spiral-shaped lens provides clear vision at a range of distances and lighting conditions

by Optica Researchers have developed a new type of lens that uses a spiral-shaped surface to maintain a clear focus at different distances in varying light conditions. Credit: Laurent GalinierResearchers have developed a spiral-shaped lens that maintains clear focus at different distances in varying light conditions. The new lens works much like progressive lenses used for...