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 ...

The Office of Naval Research funded the development of a simple array of six lights outfitted with Fresnel lenses mounted on the stern of a ship, called a Tactical Vectoring Equipment (TVE) display.

Micro-machining could be used to create almost flat, Fresnel lenses, that boost the electrical efficiency of solar panels, according to new research. Micro-machining could be used to create almost ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the early nineteenth century, ...

Your Vox Membership goes further this holiday season. When you buy an annual membership, we’ll give one to someone who can’t afford access. It’s a simple way for you to support Vox’s journalism and ...

Building upon the success of the recently introduced PlutoFresnel, Astera is enhancing its battery-powered, LED-based PlutoFresnel light with the launch of ProjectionLens. This new solution will allow ...

GRAND MARAIS, MI – The iconic Fresnel lens is finally visible at this lighthouse in Michigan’s Upper Peninsula, officials announced. After years behind curtains, the 3rd order Fresnel lens atop the Au ...