Today it is possible to 3D print lenses in volume, enabling unique benefits for traditional prescription lenses and for smart eyewear. With 3D printing lenses can be printed with spheres, aspheres, cylinders, prisms, bifocals, trifocals, progressives and anything in-between. It is possible to integrate devices inside these prescription lenses for example, waveguides, films, sensors, lcd or anything else you can think off. It is possible to create airgaps or to print directly on the device. The device can be glass or plastic. The latest innovation is that we can print not only on flat but also on curved surfaces.
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