a Fresnel lens can be made from far more mundane materials. He shows us a working lens made from transparent plastic tube, and even successfully smoulders a piece of paper with it under the ...

If you are a Hackaday reader, you probably know what a Fresnel lens is. You find them in everything from overhead projectors to VR headsets. While it seems commonplace now, the Fresnel lens was an ...

ORAFOL Fresnel Optics GmbH offers custom fabrication of plastic micro- and nanostructured optical components. Based on the complete chain of optical design, tool fabrication, precision polymer ...