Northwestern Engineering develops method for 3D printing low cost, high quality optical lenses

Northwestern Engineering develops method for 3D printing low cost, high quality optical lenses

Northwestern’s McCormick School of Engineering has developed a new method for 3D printing high quality lenses for use in optical imaging devices. Applications of the technology include customised contact lenses or smartphone lens attachments. Researchers 3D printed a lens measuring 5 mm in height and 3 mm in diameter in just four hours. Traditional methods of lens production involve costly and time consuming cutting and polishing processes that can last weeks. Visible stepping The researchers’ first attempt 3D printed the lens in a photo-curable resin, but the curved shape created visible stepping. Cheng Sun, associate professor of mechanical engineering, […]

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