Fresnel lenses, however, don’t require curvature of any kind, but instead utilize concentric flat rings to diffract light, with the rings’ size and width determining the overall lens focal length.

have developed a technology that allows them to craft the necessary surface structures on a Fresnel lens, an array of microscopic cones, rather than concentric ridges, so that incident light is ...

A lens manufactured in France in 1902 is shining high atop Montauk Point Lighthouse once again. Earlier this month the U.S. Coast Guard relit the clamshell-shaped Fresnel lens, which guided ...

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 most important part of a lighthouse might be one of the beautiful tools hidden inside of it: the Fresnel lens, a breakthrough that changed seafaring and saved lives. As the above video shows ...

The unique history of the Crooked River Lighthouse’s lens in Carrabelle, Florida. The Crooked River Lighthouse’s Executive Director, Steve Allen, shares with us the unique qualities of the ...

However, it seems like the new system will address some of the key issues with this lens type. But what is a Fresnel lens, and what exactly can we expect from these new panels in PlayStation VR 2?

Both lights are able to maintain a Beam Angle between 15° and 60° with no colour fringing, meaning that the lights can be used flexibly in a range of creative contexts – from on-stage lighting to film ...